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  • Problem with updating data in asp .NET MVC 2 application

    - by Bojan
    Hello everyone, i am just getting started with asp .NET MVC 2 applications and i stumbled upon a problem. I'm having trouble updating my tables. The debugger doesn't report any error, it just doesn't do anything... I hope some can help me out. Thank you for your time. This is my controller code... public ActionResult Edit(int id) { var supplierToEdit = (from c in _entities.SupplierSet where c.SupplierId == id select c).FirstOrDefault(); return View(supplierToEdit); } // // POST: /Supplier/Edit/5 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(Supplier supplierToEdit) { if (!ModelState.IsValid) return View(); try { var originalSupplier = (from c in _entities.SupplierSet where c.SupplierId == supplierToEdit.SupplierId select c).FirstOrDefault(); _entities.ApplyPropertyChanges(originalSupplier.EntityKey.EntitySetName, supplierToEdit); _entities.SaveChanges(); // TODO: Add update logic here return RedirectToAction("Index"); } catch { return View(); } } This is my View ... <h2>Edit</h2> <% using (Html.BeginForm()) {%> <%= Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <div class="editor-label"> <%= Html.LabelFor(model => model.CompanyName) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.CompanyName) %> <%= Html.ValidationMessageFor(model => model.CompanyName) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.ContactName) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.ContactName) %> <%= Html.ValidationMessageFor(model => model.ContactName) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.ContactTitle) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.ContactTitle) %> <%= Html.ValidationMessageFor(model => model.ContactTitle) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Address) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Address) %> <%= Html.ValidationMessageFor(model => model.Address) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.City) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.City) %> <%= Html.ValidationMessageFor(model => model.City) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.PostalCode) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.PostalCode) %> <%= Html.ValidationMessageFor(model => model.PostalCode) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Country) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Country) %> <%= Html.ValidationMessageFor(model => model.Country) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Telephone) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Telephone) %> <%= Html.ValidationMessageFor(model => model.Telephone) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Fax) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Fax) %> <%= Html.ValidationMessageFor(model => model.Fax) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.HomePage) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.HomePage) %> <%= Html.ValidationMessageFor(model => model.HomePage) %> </div> <p> <input type="submit" value="Save" /> </p> </fieldset> <% } %> <div> <%= Html.ActionLink("Back to List", "Index") %> </div>

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  • PHP statements, HTML and RSS

    - by poindexter
    Alrighty, I've got another little bit of code that I'm wrestling through. I'm building a conditional sidebar. The goal is to only show blog related stuff when posts in the "blog" category are being viewed. I've got part of it working, but the part where I'm trying to bring in an RSS feed of the category into the sidebar to show as recent posts. It doesn't work, and since I'm a php newb I'm not entirely sure why. Any suggestions or pointers are much appreciated. I'll post the problem section first, and then the entire php file second, so you all can see the context for the section that I'm having issues with. Problem Section: echo '<div class="panel iq-news">'; echo '<h4><span><a href="/category/blog/feed"><img src="/wp-content/themes/iq/images/rss-icon.gif" alt="Subscribe to our feed"/></a></span>IQNavigator Blog</h4>'; <?php query_posts('category_name=Blog&showposts=2'); if (have_posts()) : ?> echo '<ul>'; <?php while (have_posts()) : the_post(); ?> echo '<li><a href="<?php the_permalink();?>"><?php the_title();?> </a></li>'; <?php endwhile;?> echo '</ul>'; <?php endif;?> echo '<div class="twitter">'; echo '<p id="twitter-updates">'; <?php twitter_updates();?> echo '</p>'; echo '<p class="text-center"><a href="http://twitter.com/iqnavigator">Follow us on twitter</a></p>'; echo '</div>'; echo '</div>'; The whole darn long statement, for context reasons: <div class="sidebar"> <?php if (!is_search() && !is_page('Our Clients') && !is_archive()){ if($post->post_parent) { $children = wp_list_pages("title_li=&child_of=".$post->post_parent."&echo=0&depth=1&exclude=85,87,89,181,97,184"); } else { $children = wp_list_pages("title_li=&child_of=".$post->ID."&echo=0&depth=1&exclude=85,87,89,181,97,184"); } if ($children) { ?> <div class="panel links subnav"> <h3>In This Section</h3> <ul class="subnav"> <?php echo $children; ?> </ul> <p>&nbsp;</p> </div> <?php } } if(is_page('Our Clients') || in_category('Our Clients') || is_category('Our Clients')) { echo '<div class="panel links subnav">'; echo '<h3>In This Section</h3>'; echo '<ul class="subnav">'; wp_list_categories('child_of=21&title_li='); echo '</ul>'; echo '<p>&nbsp;</p>'; echo '</div>'; } else if (in_category('Blog')) { //PUT YOUR CODE HERE // echo get_page_content(34); echo '<div class="panel featured-resource">'; echo '<h4>Blog Contributors</h4>'; echo '<ul class"subnav">'; echo '<li><a href="/company/executive-team/john-f-martin/">John Martin</a></li>'; echo '<li><a href="/company/executive-team/kieran-brady/">Kieran Brady</a></li>'; echo '<li><a href="/company/executive-team/art-knapp/">Art Knapp</a></li>'; echo '</ul>'; echo '</div>'; echo '<div class="panel iq-news">'; echo '<h4><span><a href="/category/blog/feed"><img src="/wp-content/themes/iq/images/rss-icon.gif" alt="Subscribe to our feed"/></a></span>IQNavigator Blog</h4>'; <?php query_posts('category_name=Blog&showposts=2'); if (have_posts()) : ?> echo '<ul>'; <?php while (have_posts()) : the_post(); ?> echo '<li><a href="<?php the_permalink();?>"><?php the_title();?> </a></li>'; <?php endwhile;?> echo '</ul>'; <?php endif;?> echo '<div class="twitter">'; echo '<p id="twitter-updates">'; <?php twitter_updates();?> echo '</p>'; echo '<p class="text-center"><a href="http://twitter.com/iqnavigator">Follow us on twitter</a></p>'; echo '</div>'; echo '</div>'; //END CODE HERE } if (!is_page('Resources')) { ?> <div class="panel featured-resource"> <h4>Featured Resource</h4> <div class="embed"> <?php $custom_fields = get_post_custom(); $featured_video_code = $custom_fields['Featured Video Code']; if($featured_video_code) { foreach ( $featured_video_code as $key => $value ) { $the_code = $value; } $featured_video_link = $custom_fields['Featured Video Link']; foreach ( $featured_video_link as $key => $value ) { $the_link = $value; } $featured_video_text = $custom_fields['Featured Video Text']; foreach ( $featured_video_text as $key => $value ) { $the_text = $value; } if($the_code) { echo $the_code; } if($the_text) { echo '<ul>'; echo '<li>'; if($the_link) { echo '<a href="' . $the_link . '" class="video" target="_blank">' . $the_text . '</a>'; } else { echo $the_text; } echo '</li>'; echo '</ul>'; } } ?> + Visit Resource Center <div class="clr"></div> <div class="blue-bars"> <a href="<?php bloginfo('template_directory');?>/more-info.php" class="more-info" rel="facebox">Request More Info</a> <a href="<?php bloginfo('template_directory');?>/resource-form.php?id=701000000009E" class="view-demos" rel="facebox">Schedule a Demo</a> </div> </div> <div id="content">

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  • Hide/Show some HTML table cells individually and align the remaining cells as they belong to the same row [closed]

    - by Brian
    [Edited at the resquest of admins] The best way I can explain my problem is showning an example. I have the table that you can see on the link below (since I can't post images...), that ha a table head (blue) and four rows, whose cells are green and white in color. I just want the white cells to hide/show alternately by clicking on green cells, which would remain always visible as parent cells. After hiding white cells, the green ones should be aligned into the same row, as they would fit like tetris bricks. That's all, I think more clear is impossible. http://i.stack.imgur.com/3n3In.jpg (follow the link to see the image explanation) The table code: <table class="columns" cellspacing="0" border="0"> <tr> <td class="left" rowspan="2"> <div style="text-align:center;"></div> </td> </tr><tr><td class="middle"> <div id="detail_table_source" style="display:none"></div> <br> <table id="detail_table" class="detail"> <colgroup> <col style="width:20px;"> <col style="width:40px;"> <col style="width:70px;"> <col style="width:20px;"> </colgroup> <thead> <tr> <th width="88">Blahhh</th> <th width="211">BLAHH</th> <th width="229">BLAHH</th> </tr> </thead> <tbody> <tr class="parent" id="row123" style="cursor: pointer; " title="Click to expand/collapse"> <td bgcolor="#A6A4CC">Blahhh</td> <td bgcolor="#A6A4CC">blah blah </td> <td bgcolor="#A6A4CC">Blahh</td> </tr> <tr class="child-row123" style="display: none; "> <td rowspan="3" bgcolor="#5B5B5B">&nbsp;</td> <td>blah blah </td> <td>blah blah</td> </tr> <tr class="child-row123" style="display: none; "> <td>blah blah</td> <td>blah blah</td> </tr> <tr class="child-row123" style="display: none; "> <td>blah blah</td> <td>blah blah</td> </tr> <tr> <td bgcolor="#6B7A94" class="parent" id="row456" style="cursor: pointer; " title="Click to expand/collapse"><strong>Blahh</strong></td> <td bgcolor="#FFFFFF" class="child-cell456" style="display: none; ">blah blah</td> <td bgcolor="#FFFFFF" class="child-cell456" style="display: none; ">blah blah</td> </tr> <tr> <td rowspan="4" valign="top" bgcolor="#5B5B5B" class="child-row456" style="display: none; ">&nbsp;</td> <td bgcolor="#6B7A94" class="parent" id="cell456" style="cursor: pointer; " title="Click to expand/collapse">blah blah</td> <td bgcolor="#6B7A94" class="parent" id="cell456" style="cursor: pointer; " title="Click to expand/collapse">blah blah</td> </tr> <tr> <td class="child-cell456" style="display: none; ">blah blah</td> <td class="child-cell456" style="display: none; ">blah blah</td> </tr> <tr> <td class="child-cell456" style="display: none; ">blah blah</td> <td class="child-cell456" style="display: none; ">blah blah</td> </tr> </tbody> </table> The script to hide/show whole rows (this works because it is copied from another example): <script language="javascript"> $(function() { $('tr.parent') .css("cursor","pointer") .attr("title","Click to expand/collapse") .click(function(){ $(this).siblings('.child-'+this.id).toggle(); }); $('tr[@class^=child-]').hide().children('td'); }); </script> And the failed attempt at expanding/hiding individual cells: <script language="javascript"> $(function() { $('td.parent') .css("cursor","pointer") .attr("title","Click to expand/collapse") .click(function(){ $(this).siblings('.child-'+this.id).toggle(); }); $('td[@class^=child-]').hide().children('td'); }); </script>

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  • Losing jQuery functionality after postback

    - by David Lozzi
    I have seen a TON of people reporting this issue online, but no actual solutions. I'm not using AJAX or updatepanels, just a dropdown that posts back on selected index change. My HTML is <div id="myList"> <table id="ctl00_PlaceHolderMain_dlFields" cellspacing="0" border="0" style="border-collapse:collapse;"> <tr> <td> <tr> <td class="ms-formlabel" style="width: 175px; padding-left: 10px"> <span id="ctl00_PlaceHolderMain_dlFields_ctl00_lblDestinationField">Body</span> </td> <td class="ms-formbody" style="width: 485px"> <input name="ctl00$PlaceHolderMain$dlFields$ctl00$txtSource" type="text" id="ctl00_PlaceHolderMain_dlFields_ctl00_txtSource" class="ms-input" style="width:230px" /> <select name="ctl00$PlaceHolderMain$dlFields$ctl00$ddlSourceFields" id="ctl00_PlaceHolderMain_dlFields_ctl00_ddlSourceFields" class="ms-input"> <option value="Some Field Name 1">Some Field Name 1</option> <option value="Some Field Name 2">Some Field Name 2</option> <option value="Some Field Name 3">Some Field Name 3</option> <option value="Some Field Name 4">Some Field Name 4</option> </select> <a href="#" id="appendSelect">append</a> </td> </tr> </td> </tr><tr> <td> <tr> <td class="ms-formlabel" style="width: 175px; padding-left: 10px"> <span id="ctl00_PlaceHolderMain_dlFields_ctl01_lblDestinationField">Expires</span> </td> <td class="ms-formbody" style="width: 485px"> <input name="ctl00$PlaceHolderMain$dlFields$ctl01$txtSource" type="text" id="ctl00_PlaceHolderMain_dlFields_ctl01_txtSource" class="ms-input" style="width:230px" /> <select name="ctl00$PlaceHolderMain$dlFields$ctl01$ddlSourceFields" id="ctl00_PlaceHolderMain_dlFields_ctl01_ddlSourceFields" class="ms-input"> <option value="Some Field Name 1">Some Field Name 1</option> <option value="Some Field Name 2">Some Field Name 2</option> <option value="Some Field Name 3">Some Field Name 3</option> <option value="Some Field Name 4">Some Field Name 4</option> </select> <a href="#" id="appendSelect">append</a> </td> </tr> </td> </tr><tr> <td> <tr> <td class="ms-formlabel" style="width: 175px; padding-left: 10px"> <span id="ctl00_PlaceHolderMain_dlFields_ctl02_lblDestinationField">Title</span> </td> <td class="ms-formbody" style="width: 485px"> <input name="ctl00$PlaceHolderMain$dlFields$ctl02$txtSource" type="text" id="ctl00_PlaceHolderMain_dlFields_ctl02_txtSource" class="ms-input" style="width:230px" /> <select name="ctl00$PlaceHolderMain$dlFields$ctl02$ddlSourceFields" id="ctl00_PlaceHolderMain_dlFields_ctl02_ddlSourceFields" class="ms-input"> <option value="Some Field Name 1">Some Field Name 1</option> <option value="Some Field Name 2">Some Field Name 2</option> <option value="Some Field Name 3">Some Field Name 3</option> <option value="Some Field Name 4">Some Field Name 4</option> </select> <a href="#" id="appendSelect">append</a> </td> </tr> </td> </tr> </table></div> The above Div tag is static, and the table is generated from a DataList object. On postback the datalist reloads using a new dataset, for example <div id="myList"> <table id="ctl00_PlaceHolderMain_dlFields" cellspacing="0" border="0" style="border-collapse:collapse;"> <tr> <td> <tr> <td class="ms-formlabel" style="width: 175px; padding-left: 10px"> <span id="ctl00_PlaceHolderMain_dlFields_ctl00_lblDestinationField">Notes</span> </td> <td class="ms-formbody" style="width: 485px"> <input name="ctl00$PlaceHolderMain$dlFields$ctl00$txtSource" type="text" id="ctl00_PlaceHolderMain_dlFields_ctl00_txtSource" class="ms-input" style="width:230px" /> <select name="ctl00$PlaceHolderMain$dlFields$ctl00$ddlSourceFields" id="ctl00_PlaceHolderMain_dlFields_ctl00_ddlSourceFields" class="ms-input"> <option value="Some Field Name 1">Some Field Name 1</option> <option value="Some Field Name 2">Some Field Name 2</option> <option value="Some Field Name 3">Some Field Name 3</option> <option value="Some Field Name 4">Some Field Name 4</option> </select> <a href="#" id="appendSelect">append</a> </td> </tr> </td> </tr><tr> <td> <tr> <td class="ms-formlabel" style="width: 175px; padding-left: 10px"> <span id="ctl00_PlaceHolderMain_dlFields_ctl01_lblDestinationField">URL</span> </td> <td class="ms-formbody" style="width: 485px"> <input name="ctl00$PlaceHolderMain$dlFields$ctl01$txtSource" type="text" id="ctl00_PlaceHolderMain_dlFields_ctl01_txtSource" class="ms-input" style="width:230px" /> <select name="ctl00$PlaceHolderMain$dlFields$ctl01$ddlSourceFields" id="ctl00_PlaceHolderMain_dlFields_ctl01_ddlSourceFields" class="ms-input"> <option value="Some Field Name 1">Some Field Name 1</option> <option value="Some Field Name 2">Some Field Name 2</option> <option value="Some Field Name 3">Some Field Name 3</option> <option value="Some Field Name 4">Some Field Name 4</option> </select> <a href="#" id="appendSelect">append</a> </td> </tr> </td> </tr> </table></div> After the postback and the datalist is reloaded, my JQuery doesn't work anymore. No errors, nothing. I don't see any actual changes in the objects in the HTML that should cause this. How do I fix this? Any workarounds or bandaides I can apply? My JQuery is below <script type='text/javascript'> $(document).ready(function () { $('#myList a').live("click", function () { var $selectValue = $(this).siblings('select').val(); var $thatInput = $(this).siblings('input'); var val = $thatInput.val() + ' |[' + $selectValue + ']|'; $thatInput.val(jQuery.trim(val)); }) }); </script> Thanks!!

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  • Is it necessary to burn-in RAM for server-class systems?

    - by ewwhite
    When using server-class systems with ECC RAM, is it necessary or even useful to burn-in the memory DIMMs prior to deployment? I've encountered an environment where all server RAM is placed through a lengthy multi-day burn-in/stress-tesing process. This has delayed system deployments on occasion and adds an extra step to the hardware lead-time. The server hardware is primarily Supermicro, so the RAM is sourced from a variety of vendors; not directly from the manufacturer like a Dell Poweredge or HP ProLiant. Is this process useful? In my past experience, I simply used vendor RAM out of the box. Isn't that what the POST memory tests are for? I've encountered and responded to ECC errors long before a DIMM actually failed. The ECC thresholds were usually the trigger for warranty placement. Do you burn your RAM in? If so, what method do you use to perform the tests? Has the burn-in process resulted in any additional platform stability? Has it identified any pre-deployment problems?

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  • ASP.NET MVC 3 Hosting :: New Features in ASP.NET MVC 3

    - by mbridge
    Razor View Engine The Razor view engine is a new view engine option for ASP.NET MVC that supports the Razor templating syntax. The Razor syntax is a streamlined approach to HTML templating designed with the goal of being a code driven minimalist templating approach that builds on existing C#, VB.NET and HTML knowledge. The result of this approach is that Razor views are very lean and do not contain unnecessary constructs that get in the way of you and your code. ASP.NET MVC 3 Preview 1 only supports C# Razor views which use the .cshtml file extension. VB.NET support will be enabled in later releases of ASP.NET MVC 3. For more information and examples, see Introducing “Razor” – a new view engine for ASP.NET on Scott Guthrie’s blog. Dynamic View and ViewModel Properties A new dynamic View property is available in views, which provides access to the ViewData object using a simpler syntax. For example, imagine two items are added to the ViewData dictionary in the Index controller action using code like the following: public ActionResult Index() {          ViewData["Title"] = "The Title";          ViewData["Message"] = "Hello World!"; } Those properties can be accessed in the Index view using code like this: <h2>View.Title</h2> <p>View.Message</p> There is also a new dynamic ViewModel property in the Controller class that lets you add items to the ViewData dictionary using a simpler syntax. Using the previous controller example, the two values added to the ViewData dictionary can be rewritten using the following code: public ActionResult Index() {     ViewModel.Title = "The Title";     ViewModel.Message = "Hello World!"; } “Add View” Dialog Box Supports Multiple View Engines The Add View dialog box in Visual Studio includes extensibility hooks that allow it to support multiple view engines, as shown in the following figure: Service Location and Dependency Injection Support ASP.NET MVC 3 introduces improved support for applying Dependency Injection (DI) via Inversion of Control (IoC) containers. ASP.NET MVC 3 Preview 1 provides the following hooks for locating services and injecting dependencies: - Creating controller factories. - Creating controllers and setting dependencies. - Setting dependencies on view pages for both the Web Form view engine and the Razor view engine (for types that derive from ViewPage, ViewUserControl, ViewMasterPage, WebViewPage). - Setting dependencies on action filters. Using a Dependency Injection container is not required in order for ASP.NET MVC 3 to function properly. Global Filters ASP.NET MVC 3 allows you to register filters that apply globally to all controller action methods. Adding a filter to the global filters collection ensures that the filter runs for all controller requests. To register an action filter globally, you can make the following call in the Application_Start method in the Global.asax file: GlobalFilters.Filters.Add(new MyActionFilter()); The source of global action filters is abstracted by the new IFilterProvider interface, which can be registered manually or by using Dependency Injection. This allows you to provide your own source of action filters and choose at run time whether to apply a filter to an action in a particular request. New JsonValueProviderFactory Class The new JsonValueProviderFactory class allows action methods to receive JSON-encoded data and model-bind it to an action-method parameter. This is useful in scenarios such as client templating. Client templates enable you to format and display a single data item or set of data items by using a fragment of HTML. ASP.NET MVC 3 lets you connect client templates easily with an action method that both returns and receives JSON data. Support for .NET Framework 4 Validation Attributes and IvalidatableObject The ValidationAttribute class was improved in the .NET Framework 4 to enable richer support for validation. When you write a custom validation attribute, you can use a new IsValid overload that provides a ValidationContext instance. This instance provides information about the current validation context, such as what object is being validated. This change enables scenarios such as validating the current value based on another property of the model. The following example shows a sample custom attribute that ensures that the value of PropertyOne is always larger than the value of PropertyTwo: public class CompareValidationAttribute : ValidationAttribute {     protected override ValidationResult IsValid(object value,              ValidationContext validationContext) {         var model = validationContext.ObjectInstance as SomeModel;         if (model.PropertyOne > model.PropertyTwo) {            return ValidationResult.Success;         }         return new ValidationResult("PropertyOne must be larger than PropertyTwo");     } } Validation in ASP.NET MVC also supports the .NET Framework 4 IValidatableObject interface. This interface allows your model to perform model-level validation, as in the following example: public class SomeModel : IValidatableObject {     public int PropertyOne { get; set; }     public int PropertyTwo { get; set; }     public IEnumerable<ValidationResult> Validate(ValidationContext validationContext) {         if (PropertyOne <= PropertyTwo) {            yield return new ValidationResult(                "PropertyOne must be larger than PropertyTwo");         }     } } New IClientValidatable Interface The new IClientValidatable interface allows the validation framework to discover at run time whether a validator has support for client validation. This interface is designed to be independent of the underlying implementation; therefore, where you implement the interface depends on the validation framework in use. For example, for the default data annotations-based validator, the interface would be applied on the validation attribute. Support for .NET Framework 4 Metadata Attributes ASP.NET MVC 3 now supports .NET Framework 4 metadata attributes such as DisplayAttribute. New IMetadataAware Interface The new IMetadataAware interface allows you to write attributes that simplify how you can contribute to the ModelMetadata creation process. Before this interface was available, you needed to write a custom metadata provider in order to have an attribute provide extra metadata. This interface is consumed by the AssociatedMetadataProvider class, so support for the IMetadataAware interface is automatically inherited by all classes that derive from that class (notably, the DataAnnotationsModelMetadataProvider class). New Action Result Types In ASP.NET MVC 3, the Controller class includes two new action result types and corresponding helper methods. HttpNotFoundResult Action The new HttpNotFoundResult action result is used to indicate that a resource requested by the current URL was not found. The status code is 404. This class derives from HttpStatusCodeResult. The Controller class includes an HttpNotFound method that returns an instance of this action result type, as shown in the following example: public ActionResult List(int id) {     if (id < 0) {                 return HttpNotFound();     }     return View(); } HttpStatusCodeResult Action The new HttpStatusCodeResult action result is used to set the response status code and description. Permanent Redirect The HttpRedirectResult class has a new Boolean Permanent property that is used to indicate whether a permanent redirect should occur. A permanent redirect uses the HTTP 301 status code. Corresponding to this change, the Controller class now has several methods for performing permanent redirects: - RedirectPermanent - RedirectToRoutePermanent - RedirectToActionPermanent These methods return an instance of HttpRedirectResult with the Permanent property set to true. Breaking Changes The order of execution for exception filters has changed for exception filters that have the same Order value. In ASP.NET MVC 2 and earlier, exception filters on the controller with the same Order as those on an action method were executed before the exception filters on the action method. This would typically be the case when exception filters were applied without a specified order Order value. In MVC 3, this order has been reversed in order to allow the most specific exception handler to execute first. As in earlier versions, if the Order property is explicitly specified, the filters are run in the specified order. Known Issues When you are editing a Razor view (CSHTML file), the Go To Controller menu item in Visual Studio will not be available, and there are no code snippets.

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  • Implicit and Explicit implementations for Multiple Interface inheritance

    Following C#.NET demo explains you all the scenarios for implementation of Interface methods to classes. There are two ways you can implement a interface method to a class. 1. Implicit Implementation 2. Explicit Implementation. Please go though the sample. using System; namespace ImpExpTest {     class Program     {         static void Main(string[] args)         {             C o3 = new C();             Console.WriteLine(o3.fu());             I1 o1 = new C();             Console.WriteLine(o1.fu());             I2 o2 = new C();             Console.WriteLine(o2.fu());             var o4 = new C();       //var is considered as C             Console.WriteLine(o4.fu());             var o5 = (I1)new C();   //var is considered as I1             Console.WriteLine(o5.fu());             var o6 = (I2)new C();   //var is considered as I2             Console.WriteLine(o6.fu());             D o7 = new D();             Console.WriteLine(o7.fu());             I1 o8 = new D();             Console.WriteLine(o8.fu());             I2 o9 = new D();             Console.WriteLine(o9.fu());         }     }     interface I1     {         string fu();     }     interface I2     {         string fu();     }     class C : I1, I2     {         #region Imicitly Defined I1 Members         public string fu()         {             return "Hello C"         }         #endregion Imicitly Defined I1 Members         #region Explicitly Defined I1 Members         string I1.fu()         {             return "Hello from I1";         }         #endregion Explicitly Defined I1 Members         #region Explicitly Defined I2 Members         string I2.fu()         {             return "Hello from I2";         }         #endregion Explicitly Defined I2 Members     }     class D : C     {         #region Imicitly Defined I1 Members         public string fu()         {             return "Hello from D";         }         #endregion Imicitly Defined I1 Members     } } Output:- Hello C Hello from I1 Hello from I2 Hello C Hello from I1 Hello from I2 Hello from D Hello from I1 Hello from I2 span.fullpost {display:none;}

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  • Help me understand these generic method warnings

    - by Raj
    Folks, I have a base class, say: public class BaseType { private String id; ... } and then three subclasses: public class TypeA extends BaseType { ... } public class TypeB extends BaseType { ... } public class TypeC extends BaseType { ... } I have a container class that maintains lists of objects of these types: public class Container { private List<TypeA> aList; private List<TypeB> bList; private List<TypeC> cList; // finder method goes here } And now I want to add a finder method to container that will find an object from one of the lists. The finder method is written as follows: public <T extends BaseType> T find( String id, Class<T> clazz ) { final List<T> collection; if( clazz == TypeA.class ) { collection = (List<T>)aList; } else if( clazz == TypeB.class ) { collection = (List<T>)bList; } else if( clazz == TypeC.class ) { collection = (List<T>)cList; } else return null; for( final BaseType value : collection ) { if( value.getId().equals( id ) ) { return (T)value; } } return null; } My question is this: If I don't add all the casts to T in my finder above, I get compile errors. I think the compile should be able to infer the types based on parametrization of the generic method (). Can anyone explain this? Thanks. -Raj

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  • Twitter Bootstrap 3 top nav dropdown covered by subnav bar

    - by Aaron Qian
    I'm creating a Twitter Bootstrap main nav and sub nav with a drop down menu on the main nav. The problem is that I can never get the drop down menu to be shown above the sub nav. Here is the HTML: <div class="mainnav navbar navbar-fixed-top navbar-inverse"> <div class="navbar-inner"> <div class="container"> <ul class="nav"> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown"> Settings </a> <ul class="dropdown-menu"> <li><a>test 1</a></li> <li><a>test 2</a></li> </ul> </li> </ul> </div> </div> </div> <div class="subnav navbar navbar-fixed-top"> <div class="navbar-inner"> <div class="container"> <ul class="nav"> <li><a>foo</a></li> <li><a>bar</a></li> </ul> </div> </div> </div> CSS: .subnav { top: 40px; } .mainnav .dropdown-menu { // how can I show this menu above the subnav??? }

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  • Blueprint CSS and Separation of Presentation and Content When Designing Forms

    - by Merritt
    Is it possible to use Blueprint CSS and maintain a a respectable level of separation between presentation and content? I like how easy the framework is to use when designing forms, but am worried that the manner in which I use the css classes for columnizing elements is a bad practice. For instance, say I have a 3 field form designed using blueprint: <div class="container"> <form action="" method="post" class="inline"> <fieldset> <legend>Example</legend> <div class="span-3"> <label for="a">Label A:</label> <input type="text" class="text" id="a" name="a" > </div> <div class="span-2"> <label for="b">Label B:</label> <input type="text" class="text" id="b" name="b" > </div> <div class="span-3"> <label for="o">Label O:</label> <input type="checkbox" id="o" name="o" value="true" checked="checked" class="checkbox">checkbox one </div> <div class="span-2 last"> <input type="submit" value="submit" class="button"> </div> </fieldset> </form> </div> Is using a class attribute with names like "span-2", "inline", and "last" a bad practice? Or am I missing the point?

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  • HPCM 11.1.2.2.x - How to find data in an HPCM Standard Costing database

    - by Jane Story
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman";} When working with a Hyperion Profitability and Cost Management (HPCM) Standard Costing application, there can often be a requirement to check data or allocated results using reporting tools e.g Smartview. To do this, you are retrieving data directly from the Essbase databases related to your HPCM model. For information, running reports is covered in Chapter 9 of the HPCM User documentation. The aim of this blog is to provide a quick guide to finding this data for reporting in the HPCM generated Essbase database in v11.1.2.2.x of HPCM. In order to retrieve data from an HPCM generated Essbase database, it is important to understand each of the following dimensions in the Essbase database and where data is located within them: Measures dimension – identifies Measures AllocationType dimension – identifies Direct Allocation Data or Genealogy Allocation data Point Of View (POV) dimensions – there must be at least one, maximum of four. Business dimensions: Stage Business dimensions – these will be identified by the Stage prefix. Intra-Stage dimension – these will be identified by the _Intra suffix. Essbase outlines and reporting is explained in the documentation here:http://docs.oracle.com/cd/E17236_01/epm.1112/hpm_user/ch09s02.html For additional details on reporting measures, please review this section of the documentation:http://docs.oracle.com/cd/E17236_01/epm.1112/hpm_user/apas03.html Reporting requirements in HPCM quite often start with identifying non balanced items in the Stage Balancing report. The following documentation link provides help with identifying some of the items within the Stage Balancing report:http://docs.oracle.com/cd/E17236_01/epm.1112/hpm_user/generatestagebalancing.html The following are some types of data upon which you may want to report: Stage Data: Direct Input Assigned Input Data Assigned Output Data Idle Cost/Revenue Unassigned Cost/Revenue Over Driven Cost/Revenue Direct Allocation Data Genealogy Allocation Data Stage Data Stage Data consists of: Direct Input i.e. input data, the starting point of your allocation e.g. in Stage 1 Assigned Input Data i.e. the cost/revenue received from a prior stage (i.e. stage 2 and higher). Assigned Output Data i.e. for each stage, the data that will be assigned forward is assigned post stage data. Reporting on this data is explained in the documentation here:http://docs.oracle.com/cd/E17236_01/epm.1112/hpm_user/ch09s03.html Dimension Selection Measures Direct Input: CostInput RevenueInput Assigned Input (from previous stages): CostReceivedPriorStage RevenueReceivedPriorStage Assigned Output (to subsequent stages): CostAssignedPostStage RevenueAssignedPostStage AllocationType DirectAllocation POV One member from each POV dimension Stage Business Dimensions Any members for the stage business dimensions for the stage you wish to see the Stage data for. All other Dimensions NoMember Idle/Unassigned/OverDriven To view Idle, Unassigned or Overdriven Costs/Revenue, first select which stage for which you want to view this data. If multiple Stages have unassigned/idle, resolve the earliest first and re-run the calculation as differences in early stages will create unassigned/idle in later stages. Dimension Selection Measures Idle: IdleCost IdleRevenue Unassigned: UnAssignedCost UnAssignedRevenue Overdriven: OverDrivenCost OverDrivenRevenue AllocationType DirectAllocation POV One member from each POV dimension Dimensions in the Stage with Unassigned/ Idle/OverDriven Cost All the Stage Business dimensions in the Stage with Unassigned/Idle/Overdriven. Zoom in on each dimension to find the individual members to find which members have Unassigned/Idle/OverDriven data. All other Dimensions NoMember Direct Allocation Data Direct allocation data shows the data received by a destination intersection from a source intersection where a direct assignment(s) exists. Reporting on direct allocation data is explained in the documentation here:http://docs.oracle.com/cd/E17236_01/epm.1112/hpm_user/ch09s04.html You would select the following to report direct allocation data Dimension Selection Measures CostReceivedPriorStage AllocationType DirectAllocation POV One member from each POV dimension Stage Business Dimensions Any members for the SOURCE stage business dimensions and the DESTINATION stage business dimensions for the direct allocations for the stage you wish to report on. All other Dimensions NoMember Genealogy Allocation Data Genealogy allocation data shows the indirect data relationships between stages. Genealogy calculations run in the HPCM Reporting database only. Reporting on genealogy data is explained in the documentation here:http://docs.oracle.com/cd/E17236_01/epm.1112/hpm_user/ch09s05.html Dimension Selection Measures CostReceivedPriorStage AllocationType GenealogyAllocation (IndirectAllocation in 11.1.2.1 and prior versions) POV One member from each POV dimension Stage Business Dimensions Any stage business dimension members from the STARTING stage in Genealogy Any stage business dimension members from the INTERMEDIATE stage(s) in Genealogy Any stage business dimension members from the ENDING stage in Genealogy All other Dimensions NoMember Notes If you still don’t see data after checking the above, please check the following Check the calculation has been run. Here are couple of indicators that might help them with that. Note the size of essbase cube before and after calculations ensure that a calculation was run against the database you are examing. Export the essbase data to a text file to confirm that some data exists. Examine the date and time on task area to see when, if any, calculations were run and what choices were used (e.g. Genealogy choices) If data does not exist in places where they are expecting, it could be that No calculations/genealogy were run No calculations were successfully run The model/data at feeder location were either absent or incompatible, resulting in no allocation e.g no driver data. Smartview Invocation from HPCM From version 11.1.2.2.350 of HPCM (this version will be GA shortly), it is possible to directly invoke Smartview from HPCM. There is guided navigation before the Smartview invocation and it is then possible to see the selected value(s) in SmartView. Click to Download HPCM 11.1.2.2.x - How to find data in an HPCM Standard Costing database (Right click or option-click the link and choose "Save As..." to download this pdf file)

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  • Javascript error when integrating django-tinymce and django-filebrowser

    - by jwesonga
    I've set up django-filebrowser in my app without any bugs, I already had django-tinymce set up and it loads the editor in the admin forms. I now want to use django-filebrowser with django-tinymce, but I keep getting a weird javascript error when I click on "Image URL" in the Image popup: r is undefined the error is js/tiny_mce/tiny_mce.js My settings.py file has the following configuration: TINYMCE_JS_URL=MEDIA_URL + 'js/tiny_mce/tiny_mce.js' TINYMCE_DEFAULT_CONFIG = { 'mode': "textareas", 'theme': "advanced", 'language': "en", 'skin': "o2k7", 'dialog_type': "modal", 'object_resizing': True, 'cleanup_on_startup': True, 'forced_root_block': "p", 'remove_trailing_nbsp': True, 'theme_advanced_toolbar_location': "top", 'theme_advanced_toolbar_align': "left", 'theme_advanced_statusbar_location': "none", 'theme_advanced_buttons1': "formatselect,styleselect,bold,italic,underline,bullist,numlist,undo,redo,link,unlink,image,code,template,visualchars,fullscreen,pasteword,media,search,replace,charmap", 'theme_advanced_buttons2': "", 'theme_advanced_buttons3': "", 'theme_advanced_path': False, 'theme_advanced_blockformats': "p,h2,h3,h4,div,code,pre", 'width': '700', 'height': '300', 'plugins': "advimage,advlink,fullscreen,visualchars,paste,media,template,searchreplace", 'advimage_update_dimensions_onchange': True, 'file_browser_callback': "CustomFileBrowser", 'relative_urls': False, 'valid_elements' : "" + "-p," + "a[href|target=_blank|class]," + "-strong/-b," + "-em/-i," + "-u," + "-ol," + "-ul," + "-li," + "br," + "img[class|src|alt=|width|height]," + "-h2,-h3,-h4," + "-pre," + "-code," + "-div", 'extended_valid_elements': "" + "a[name|class|href|target|title|onclick]," + "img[class|src|border=0|alt|title|hspace|vspace|width|height|align|onmouseover|onmouseout|name]," + "br[clearfix]," + "-p[class<clearfix?summary?code]," + "h2[class<clearfix],h3[class<clearfix],h4[class<clearfix]," + "ul[class<clearfix],ol[class<clearfix]," + "div[class]," } TINYMCE_FILEBROWSER = False TINYMCE_COMPRESSOR = False i've tried switching back to older versions of tinyMCE Javascript but nothing seems to work. Would appreciate some help

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  • How to configure a system-wide package in osgi?

    - by cheng81
    I need to made available a library to some bundles. This library makes use of RMI, so it needs (as far as I know, at least) to use the system class loader in order to work (I tried to "osgi-fy" the library, which results in classcastexceptions at runtime). So what I did was to remove the dependencies from the bundles that use that library, compile them with the library included in the property jars.extra.classpath (in the build.properties of the eclipse project). Then I added org.osgi.framework.bootdelegation=com.blipsystems.* in the felix configuration file and started the felix container with the followin command line: java -classpath lib/blipnetapi.jar -jar bin/felix.jar ..which in turns throwed a NoClassDefFoundException for a class of the blipnetapi.jar library: ERROR: Error starting file:/home/frza/felix/load/BlipnetApiOsgiService_1.0.0.1.jar (org.osgi.framework.BundleException: Activator start error in bundle BlipnetApiOsgiService [30].) java.lang.NoClassDefFoundError: com/blipsystems/blipnet/api/util/BlipNetSecurityManager at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) at java.lang.Class.getConstructor0(Class.java:2699) at java.lang.Class.newInstance0(Class.java:326) at java.lang.Class.newInstance(Class.java:308) at org.apache.felix.framework.Felix.createBundleActivator(Felix.java:3525) at org.apache.felix.framework.Felix.activateBundle(Felix.java:1694) at org.apache.felix.framework.Felix.startBundle(Felix.java:1621) at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1076) at org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:264) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.ClassNotFoundException: com.blipsystems.blipnet.api.util.BlipNetSecurityManager at org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:726) at org.apache.felix.framework.ModuleImpl.access$100(ModuleImpl.java:60) at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1631) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) ... 11 more So my question is: am I missing something? I did something wrong?

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  • Reading HTML table data / html tag

    - by user348038
    I have some 50 pages of html which have around 100-plus rows of data in each, with all sort of CSS style, I want to read the html file and just get the data, like Name, Age, Class, Teacher. and store it in Database, but I am not able to read the html tags e.g space i kept to display it here <table class="table_100"> <tr> <td class="col_1"> <span class="txt_student">Gauri Singh</span><br> <span class="txt_bold">13</span><br> <span class="txt_bold">VIII</span><br> </td> <td class="col_2"> <span class="txt_teacher">Praveen M</span><br> <span class="txt_bold">3494</span><br> <span class="txt_bold">3Star</span><br> </td> <td class="col_3"> </td> </tr> </table>

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  • How to deal with multiple sub-type of one super-type in Django admin

    - by Henri
    What would be the best solution for adding/editing multiple sub-types. E.g a super-type class Contact with sub-type class Client and sub-type class Supplier. The way shown here works, but when you edit a Contact you get both inlines i.e. sub-type Client AND sub-type Supplier. So even if you only want to add a Client you also get the fields for Supplier of vice versa. If you add a third sub-type , you get three sub-type field groups, while you actually only want one sub-type group, in the mentioned example: Client. E.g.: class Contact(models.Model): contact_name = models.CharField(max_length=128) class Client(models.Model): contact = models.OneToOneField(Contact, primary_key=True) user_name = models.CharField(max_length=128) class Supplier(models.Model): contact.OneToOneField(Contact, primary_key=True) company_name = models.CharField(max_length=128) and in admin.py class ClientInline(admin.StackedInline): model = Client class SupplierInline(admin.StackedInline): model = Supplier class ContactAdmin(admin.ModelAdmin): inlines = (ClientInline, SupplierInline,) class ClientAdmin(admin.ModelAdmin): ... class SupplierAdmin(admin.ModelAdmin): ... Now when I want to add a Client, i.e. only a Client I edit Contact and I get the inlines for both Client and Supplier. And of course the same for Supplier. Is there a way to avoid this? When I want to add/edit a Client that I only see the Inline for Client and when I want to add/edit a Supplier that I only see the Inline for Supplier, when adding/editing a Contact? Or perhaps there is a different approach. Any help or suggestion will be greatly appreciated.

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  • Passing arguments to objects created using the new operator?

    - by Abhijit
    Hi guys, I have a small C++ problem to which I don't know the best solution. I have two classes A and B as follows: class A { int n; B* b; public: A(int num): n(num) { b = new B[n]; for (int i = 0; i < n; i++) { b[i].setRef(this); } } ~A() { delete [] b; } }; class B { A* a; public: B() { } B(A* aref) { a = aref; } void setRef(A* aref) { a = aref; } }; I am creating an object of class A by passing to its constructor the number of objects of class B I want to be created. I want every object of class B to hold a pointer to the class A object that creates it. I think the best way to do this would be by passing the pointer to the class A object as a constructor argument to the class B object. However, since I'm using the new operator, the no-args constructor for class B is called. As a result, the only solution I can see here is calling the setRef(A*) method for every object of class B after it has been constructed using the new operator. Is there a better solution/design pattern that would be more applicable here? Would using placement new for class B be a better solution? Thanks in advance for your help.

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  • Managing Instances in Python

    - by BeensTheGreat
    Hello, I am new to Python and this is my first time asking a stackOverflow question, but a long time reader. I am working on a simple card based game but am having trouble managing instances of my Hand class. If you look below you can see that the hand class is a simple container for cards(which are just int values) and each Player class contains a hand class. However, whenever I create multiple instances of my Player class they all seem to manipulate a single instance of the Hand class. From my experience in C and Java it seems that I am somehow making my Hand class static. If anyone could help with this problem I would appreciate it greatly. Thank you, Thad To clarify: An example of this situation would be p = player.Player() p1 = player.Player() p.recieveCard(15) p1.recieveCard(21) p.viewHand() which would result in: [15,21] even though only one card was added to p Hand class: class Hand: index = 0 cards = [] #Collections of cards #Constructor def __init__(self): self.index self.cards def addCard(self, card): """Adds a card to current hand""" self.cards.append(card) return card def discardCard(self, card): """Discards a card from current hand""" self.cards.remove(card) return card def viewCards(self): """Returns a collection of cards""" return self.cards def fold(self): """Folds the current hand""" temp = self.cards self.cards = [] return temp Player Class import hand class Player: name = "" position = 0 chips = 0 dealer = 0 pHand = [] def __init__ (self, nm, pos, buyIn, deal): self.name = nm self.position = pos self.chips = buyIn self.dealer = deal self.pHand = hand.Hand() return def recieveCard(self, card): """Recieve card from the dealer""" self.pHand.addCard(card) return card def discardCard(self, card): """Throw away a card""" self.pHand.discardCard(card) return card def viewHand(self): """View the players hand""" return self.pHand.viewCards() def getChips(self): """Get the number of chips the player currently holds""" return self.chips def setChips(self, chip): """Sets the number of chips the player holds""" self.chips = chip return def makeDealer(self): """Makes this player the dealer""" self.dealer = 1 return def notDealer(self): """Makes this player not the dealer""" self.dealer = 0 return def isDealer(self): """Returns flag wether this player is the dealer""" return self.dealer def getPosition(self): """Returns position of the player""" return self.position def getName(self): """Returns name of the player""" return self.name

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  • Rails validation count limit on has_many :through

    - by Jeremy
    I've got the following models: Team, Member, Assignment, Role The Team model has_many Members. Each Member has_many roles through assignments. Role assignments are Captain and Runner. I have also installed devise and CanCan using the Member model. What I need to do is limit each Team to have a max of 1 captain and 5 runners. I found this example, and it seemed to work after some customization, but on update ('teams/1/members/4/edit'). It doesn't work on create ('teams/1/members/new'). But my other validation (validates :role_ids, :presence = true ) does work on both update and create. Any help would be appreciated. Update: I've found this example that would seem to be similar to my problem but I can't seem to make it work for my app. It seems that the root of the problem lies with how the count (or size) is performed before and during validation. For Example: When updating a record... It checks to see how many runners there are on a team and returns a count. (i.e. 5) Then when I select a role(s) to add to the member it takes the known count from the database (i.e. 5) and adds the proposed changes (i.e. 1), and then runs the validation check. (Team.find(self.team_id).members.runner.count 5) This works fine because it returns a value of 6 and 6 5 so the proposed update fails without saving and an error is given. But when I try to create a new member on the team... It checks to see how many runners there are on a team and returns a count. (i.e. 5) Then when I select a role(s) to add to the member it takes the known count from the database (i.e. 5) and then runs the validation check WITHOUT factoring in the proposed changes. This doesn't work because it returns a value of 5 known runner and 5 = 5 so the proposed update passes and the new member and role is saved to the database with no error. Member Model: class Member < ActiveRecord::Base devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable attr_accessible :password, :password_confirmation, :remember_me attr_accessible :age, :email, :first_name, :last_name, :sex, :shirt_size, :team_id, :assignments_attributes, :role_ids belongs_to :team has_many :assignments, :dependent => :destroy has_many :roles, through: :assignments accepts_nested_attributes_for :assignments scope :runner, joins(:roles).where('roles.title = ?', "Runner") scope :captain, joins(:roles).where('roles.title = ?', "Captain") validate :validate_runner_count validate :validate_captain_count validates :role_ids, :presence => true def validate_runner_count if Team.find(self.team_id).members.runner.count > 5 errors.add(:role_id, 'Error - Max runner limit reached') end end def validate_captain_count if Team.find(self.team_id).members.captain.count > 1 errors.add(:role_id, 'Error - Max captain limit reached') end end def has_role?(role_sym) roles.any? { |r| r.title.underscore.to_sym == role_sym } end end Member Controller: class MembersController < ApplicationController load_and_authorize_resource :team load_and_authorize_resource :member, :through => :team before_filter :get_team before_filter :initialize_check_boxes, :only => [:create, :update] def get_team @team = Team.find(params[:team_id]) end def index respond_to do |format| format.html # index.html.erb format.json { render json: @members } end end def show respond_to do |format| format.html # show.html.erb format.json { render json: @member } end end def new respond_to do |format| format.html # new.html.erb format.json { render json: @member } end end def edit end def create respond_to do |format| if @member.save format.html { redirect_to [@team, @member], notice: 'Member was successfully created.' } format.json { render json: [@team, @member], status: :created, location: [@team, @member] } else format.html { render action: "new" } format.json { render json: @member.errors, status: :unprocessable_entity } end end end def update respond_to do |format| if @member.update_attributes(params[:member]) format.html { redirect_to [@team, @member], notice: 'Member was successfully updated.' } format.json { head :no_content } else format.html { render action: "edit" } format.json { render json: @member.errors, status: :unprocessable_entity } end end end def destroy @member.destroy respond_to do |format| format.html { redirect_to team_members_url } format.json { head :no_content } end end # Allow empty checkboxes # http://railscasts.com/episodes/17-habtm-checkboxes def initialize_check_boxes params[:member][:role_ids] ||= [] end end _Form Partial <%= form_for [@team, @member], :html => { :class => 'form-horizontal' } do |f| %> #... # testing the count... <ul> <li>Captain - <%= Team.find(@member.team_id).members.captain.size %></li> <li>Runner - <%= Team.find(@member.team_id).members.runner.size %></li> <li>Driver - <%= Team.find(@member.team_id).members.driver.size %></li> </ul> <div class="control-group"> <div class="controls"> <%= f.fields_for :roles do %> <%= hidden_field_tag "member[role_ids][]", nil %> <% Role.all.each do |role| %> <%= check_box_tag "member[role_ids][]", role.id, @member.role_ids.include?(role.id), id: dom_id(role) %> <%= label_tag dom_id(role), role.title %> <% end %> <% end %> </div> </div> #... <% end %>

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  • A better way to build this MySQL statement with subselects

    - by Corey Maass
    I have five tables in my database. Members, items, comments, votes and countries. I want to get 10 items. I want to get the count of comments and votes for each item. I also want the member that submitted each item, and the country they are from. After posting here and elsewhere, I started using subselects to get the counts, but this query is taking 10 seconds or more! SELECT `items_2`.*, (SELECT COUNT(*) FROM `comments` WHERE (comments.Script = items_2.Id) AND (comments.Active = 1)) AS `Comments`, (SELECT COUNT(votes.Member) FROM `votes` WHERE (votes.Script = items_2.Id) AND (votes.Active = 1)) AS `votes`, `countrys`.`Name` AS `Country` FROM `items` AS `items_2` INNER JOIN `members` ON items_2.Member=members.Id AND members.Active = 1 INNER JOIN `members` AS `members_2` ON items_2.Member=members.Id LEFT JOIN `countrys` ON countrys.Id = members.Country GROUP BY `items_2`.`Id` ORDER BY `Created` DESC LIMIT 10 My question is whether this is the right way to do this, if there's better way to write this statement OR if there's a whole different approach that will be better. Should I run the subselects separately and aggregate the information?

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  • Delete throws "deleted object would be re-saved by cascade"

    - by Greg
    I have following model: <class name="Person" table="Person" optimistic-lock="version"> <id name="Id" type="Int32" unsaved-value="0"> <generator class="native" /> </id> <!-- plus some properties here --> </class> <class name="Event" table="Event" optimistic-lock="version"> <id name="Id" type="Int32" unsaved-value="0"> <generator class="native" /> </id> <!-- plus some properties here --> </class> <class name="PersonEventRegistration" table="PersonEventRegistration" optimistic-lock="version"> <id name="Id" type="Int32" unsaved-value="0"> <generator class="native" /> </id> <property name="IsComplete" type="Boolean" not-null="true" /> <property name="RegistrationDate" type="DateTime" not-null="true" /> <many-to-one name="Person" class="Person" column="PersonId" foreign-key="FK_PersonEvent_PersonId" cascade="all-delete-orphan" /> <many-to-one name="Event" class="Event" column="EventId" foreign-key="FK_PersonEvent_EventId" cascade="all-delete-orphan" /> </class> There are no properties pointing to PersonEventRegistration either in Person nor in Event. When I try to delete an entry from PersonEventRegistration, I get the following error: "deleted object would be re-saved by cascade" The problem is, I don't store this object in any other collection - the delete code looks like this: public bool UnregisterFromEvent(Person person, Event entry) { var registrationEntry = this.session .CreateCriteria<PersonEventRegistration>() .Add(Restrictions.Eq("Person", person)) .Add(Restrictions.Eq("Event", entry)) .Add(Restrictions.Eq("IsComplete", false)) .UniqueResult<PersonEventRegistration>(); bool result = false; if (null != registrationEntry) { using (ITransaction tx = this.session.BeginTransaction()) { this.session.Delete(registrationEntry); tx.Commit(); result = true; } } return result; } What am I doing wrong here?

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  • Issue calling superclass method in subclass constructor

    - by stormin986
    I get a NullPointerException calling a Superclass Method in Subclass Inner Class Constructor... What's the Deal? In my application's main class (subclass of Application), I have a public inner class that simply contains 3 public string objects. In the parent class I declare an object of that inner class. public class MainApplication extends Application { public class Data { public String x; public String y; public String z; } private Data data; MainApplication() { data = new Data() data.x = SuperClassMethod(); } } After I instantiate the object in the constructor, I get a runtime error when I try to assign a value in the inner class with a superclass method. Any idea what's up here?? Can you not call superclass methods in the subclass constructor? ** Edit ** Original question was about inner class member assignment in outer class constructor. Turned out the issue was with calling a superclass method in the class's constructor. It was giving me a null pointer exception. Thus, the question has changed.

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  • Changing url of background image

    - by João Pedro
    I'm doing this interface where I have a lot of buttons that are just a li with a background image like this #menu ul.icons li.nove { background-image:url(images/edit-menu/icons/undo.png); background-size:contain; display:block; margin-top:29px; } <ul class="icons"> <li class="um"></li> <li class="dois"></li> <li class="tres"></li> <li class="quatro"></li> <li class="cinco"></li> <li class="seis"></li> <li class="sete"></li> <li class="oito"></li> <li class="nove"></li> <li class="dez"></li> </ul> I need to create a code where I change the background image of the button when the user clicks it, to show that button its activated, I just need to change url(images/edit-menu/icons/ to url(images/edit-menu/select/ and keep the same filename. I need a way to do this dynamically so I won't have to do it for each of the 10 buttons. Hope I was clear, thanks in advance

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  • What does it mean to say "Instance variables are not over-rided" in java?

    - by Ankit
    I am aware of the concept called field hiding in java. But still I am having a confusion in relation to instance variable being not over-ridden. According to my present knowledge, overriding a method of super-class means that the JVM will call the sub-class's over-ridden method though the super-class's method is available to the sub-class. And I read the similar thing for field hiding via the link:- Hiding Fields So, in any case we are over-ridding the instance if we change the values of the inherited instance variable in the sub-class. I am confused please help. I am using the following super-class:- public class Animal{ File picture; String food; int hunger; int width, height; int xcoord, ycoord; public void makeNoise(){ ......... } public void eat(){ ............. } public void sleep(){ .......... } public void roam(){ ............. } } It has sub-classes like Tiger, cat, dog,hippo etc. The sub-classes over-ride the makeNoise(), eat and roam() method. But each sub-class also uses a different set of values for instance variables. So as per my confusion, I am kind-of overriding all the instance variables and 3 methods of the super-class Animal; and I still have the super-class instance variables available to the sub-class with the use of the super keyword.

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  • Asp .Net MVC Viewmodel should be class or struct?

    - by Jonas Everest
    Hey guys, I have just been thinking about the concept of view model object we create in asp.net MVC. Our purpose is to instantiate it and pass it from controller to view and view read it and display the data. Those view model are usually instantiated through constructor. We won't need to initialize the members, we may not need to redefine/override parameterless constructor and we don't need inheritance feature there. So, why don't we use struct type for our view model instead of class. It will enhance the performance.

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  • Implementing a Custom Coherence PartitionAssignmentStrategy

    - by jpurdy
    A recent A-Team engagement required the development of a custom PartitionAssignmentStrategy (PAS). By way of background, a PAS is an implementation of a Java interface that controls how a Coherence partitioned cache service assigns partitions (primary and backup copies) across the available set of storage-enabled members. While seemingly straightforward, this is actually a very difficult problem to solve. Traditionally, Coherence used a distributed algorithm spread across the cache servers (and as of Coherence 3.7, this is still the default implementation). With the introduction of the PAS interface, the model of operation was changed so that the logic would run solely in the cache service senior member. Obviously, this makes the development of a custom PAS vastly less complex, and in practice does not introduce a significant single point of failure/bottleneck. Note that Coherence ships with a default PAS implementation but it is not used by default. Further, custom PAS implementations are uncommon (this engagement was the first custom implementation that we know of). The particular implementation mentioned above also faced challenges related to managing multiple backup copies but that won't be discussed here. There were a few challenges that arose during design and implementation: Naive algorithms had an unreasonable upper bound of computational cost. There was significant complexity associated with configurations where the member count varied significantly between physical machines. Most of the complexity of a PAS is related to rebalancing, not initial assignment (which is usually fairly simple). A custom PAS may need to solve several problems simultaneously, such as: Ensuring that each member has a similar number of primary and backup partitions (e.g. each member has the same number of primary and backup partitions) Ensuring that each member carries similar responsibility (e.g. the most heavily loaded member has no more than one partition more than the least loaded). Ensuring that each partition is on the same member as a corresponding local resource (e.g. for applications that use partitioning across message queues, to ensure that each partition is collocated with its corresponding message queue). Ensuring that a given member holds no more than a given number of partitions (e.g. no member has more than 10 partitions) Ensuring that backups are placed far enough away from the primaries (e.g. on a different physical machine or a different blade enclosure) Achieving the above goals while ensuring that partition movement is minimized. These objectives can be even more complicated when the topology of the cluster is irregular. For example, if multiple cluster members may exist on each physical machine, then clearly the possibility exists that at certain points (e.g. following a member failure), the number of members on each machine may vary, in certain cases significantly so. Consider the case where there are three physical machines, with 3, 3 and 9 members each (respectively). This introduces complexity since the backups for the 9 members on the the largest machine must be spread across the other 6 members (to ensure placement on different physical machines), preventing an even distribution. For any given problem like this, there are usually reasonable compromises available, but the key point is that objectives may conflict under extreme (but not at all unlikely) circumstances. The most obvious general purpose partition assignment algorithm (possibly the only general purpose one) is to define a scoring function for a given mapping of partitions to members, and then apply that function to each possible permutation, selecting the most optimal permutation. This would result in N! (factorial) evaluations of the scoring function. This is clearly impractical for all but the smallest values of N (e.g. a partition count in the single digits). It's difficult to prove that more efficient general purpose algorithms don't exist, but the key take away from this is that algorithms will tend to either have exorbitant worst case performance or may fail to find optimal solutions (or both) -- it is very important to be able to show that worst case performance is acceptable. This quickly leads to the conclusion that the problem must be further constrained, perhaps by limiting functionality or by using domain-specific optimizations. Unfortunately, it can be very difficult to design these more focused algorithms. In the specific case mentioned, we constrained the solution space to very small clusters (in terms of machine count) with small partition counts and supported exactly two backup copies, and accepted the fact that partition movement could potentially be significant (preferring to solve that issue through brute force). We then used the out-of-the-box PAS implementation as a fallback, delegating to it for configurations that were not supported by our algorithm. Our experience was that the PAS interface is quite usable, but there are intrinsic challenges to designing PAS implementations that should be very carefully evaluated before committing to that approach.

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