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  • What is the structure of a (Data Access) Service Class

    - by jiewmeng
    I learnt that I should be using service classes to persist entities into the database instead of putting such logic in models/controllers. I currently made my service class something like class Application_DAO_User { protected $user; public function __construct(User $user) { $this->user = $user } public function edit($name, ...) { $this->user->name = $name; ... $this->em->flush(); } } I wonder if this should be the structure of a service class? where a service object represents a entity/model? Or maybe I should pass a User object everytime I want to do a edit like public static function edit($user, $name) { $user->name = $name; $this->em->flush(); } I am using Doctrine 2 & Zend Framework, but it shouldn't matter

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  • VB.NET GroupBy LINQ statement

    - by Jason
    I am having a bear of a time getting this to work. I have a List(Of MyItem) called Items that have a OrderId property on them. From those items, I want to create a list of Orders. Some items will have the same OrderId so I want to try to group by OrderId. I then want to sort by date. Here's what I have so far: Public ReadOnly Property AllOrders() As List(Of Order) Get Return Items.Select(Function(i As MyItem) New Order(i.OrderID)) _ .GroupBy(Function(o As Order) New Order(o.OrderID)) _ .OrderBy(Function(o As Order) o.DateOrdered).ToList End Get End Property This, of course, doesn't compile, and I get the error: Value of type 'System.Collections.Generic.List(Of System.Linq.IGrouping(Of Order, Order))' cannot be converted to 'System.Collections.Generic.List(Of Order))' I've bolded the part where I think the problem is, but I have no idea how to fix it. Also, it used to work fine (except there were duplicate values) before I added the .GroupBy statement. Anyone have any ideas? Thanks

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  • Kinesis Advantage OS X media keys

    - by Patrick O'Doherty
    I recently started using a Kinesis Advantage with my MacBook and one of the things I've really missed since switching from my Apple keyboard is having the functionality of the OS X media keys. I know the Advantage keyboards are pretty customisable but having Googled for quite a while I haven't been able to find any sources saying that it's possible to map the function keys on the Advantage to the appropriate OS X function. Has anyone had any success in getting something like this to work? Any tips would be hugely appreciated.

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  • jQuery .ajax() call to page method works in FF only when async is false

    - by Steve
    I'm calling a page method using .ajax() and it works in IE8 whatever the value of async is. However, in FF3.6, it only works with async set to false. When async is set to true, in Firebug, I just see status aborted. The page validates. I can work with async set to false, but any clues as to why FF can't work with async set to true? $("[id$='_www']").click(function() { var hhh = false; $.ajax({ async: false, cache: false, type: "POST", url: "/abc/def.aspx/jkl", contentType: "application/json; charset=utf-8", dataType: "json", data: "{ 'eee': '" + window.location.href.match(/\d{1,3}$/) + "', 'ttt': '" + $("[id$='_zzz']").val() + "' }", success: function(msg) { $("#ggg").html(msg.d); }, error: function(xhr, err) { hhh = true; } }); return hhh; });

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  • async handler deleted by the wrong thread in django

    - by user3480706
    I'm run this algorithm in my django application.when i run several time from my GUI django local server will stopped and i got this error Exception RuntimeError: RuntimeError('main thread is not in main loop',) in ignored Tcl_AsyncDelete: async handler deleted by the wrong thread Aborted (core dumped) code print "Learning the sin function" network =MLP.MLP(2,10,1) samples = np.zeros(2000, dtype=[('x', float, 1), ('y', float, 1)]) samples['x'] = np.linspace(-5,5,2000) samples['y'] = np.sin(samples['x']) #samples['y'] = np.linspace(-4,4,2500) for i in range(100000): n = np.random.randint(samples.size) network.propagate_forward(samples['x'][n]) network.propagate_backward(samples['y'][n]) plt.figure(figsize=(10,5)) # Draw real function x = samples['x'] y = samples['y'] #x=np.linspace(-6.0,7.0,50) plt.plot(x,y,color='b',lw=1) samples1 = np.zeros(2000, dtype=[('x1', float, 1), ('y1', float, 1)]) samples1['x1'] = np.linspace(-4,4,2000) samples1['y1'] = np.sin(samples1['x1']) # Draw network approximated function for i in range(samples1.size): samples1['y1'][i] = network.propagate_forward(samples1['x1'][i]) plt.plot(samples1['x1'],samples1['y1'],color='r',lw=3) plt.axis([-2,2,-2,2]) plt.show() plt.close() return HttpResponseRedirect('/charts/charts') how can i fix this error ?need a quick help

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  • How can I ensure that when I shuffle my puzzle I still end up with an even permutation?

    - by Mithrax
    I'm interested making an implementation of the 14-15 puzzle: I'm creating an array with the values 0 - 15 in increasing order: S = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } Now, what I want to do is shuffle them to create a new instance of the puzzle. However, I know that if I create a board with an "odd permutation" than it is unsolvable. Wikipedia says I need to create the puzzle with an even permutation. I believe this means that I simply have to do ensure I do an even number of swaps? How would I modify Fisher-Yates so I ensure I end up with an even permutation at the end? If I do a swap for every element in the array that would be 16 swaps which I believe would be an even permutation. However, do I need to be concerned about swapping with itself? Is there any other way to ensure I have a valid puzzle?

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  • Cannot get Postgresql to start on Ubuntu Hardy

    - by Greg Arcara
    I am getting this error with Postgresql 8.4 on Ubuntu Hardy: $./postgres -D /usr/local/pgsql/data LOG: could not bind IPv4 socket: Cannot assign requested address HINT: Is another postmaster already running on port 5432? If not, wait a few seconds and retry. WARNING: could not create listen socket for "localhost" FATAL: could not create any TCP/IP sockets Here is my hosts file content (been finding a lot of stuff about this so just posting it now: 127.0.0.1 localhost 127.0.1.1 Home-Dev

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  • NerdDinner form validation DataAnnotations ERROR in MVC2 when a form field is left blank.

    - by Edward Burns
    Platform: Windows 7 Ultimate IDE: Visual Studio 2010 Ultimate Web Environment: ASP.NET MVC 2 Database: SQL Server 2008 R2 Express Data Access: Entity Framework 4 Form Validation: DataAnnotations Sample App: NerdDinner from Wrox Pro ASP.NET MVC 2 Book: Wrox Professional MVC 2 Problem with Chapter 1 - Section: "Integrating Validation and Business Rule Logic with Model Classes" (pages 33 to 35) ERROR Synopsis: NerdDinner form validation ERROR with DataAnnotations and db nulls. DataAnnotations in sample code does not work when the database fields are set to not allow nulls. ERROR occurs with the code from the book and with the sample code downloaded from codeplex. Help! I'm really frustrated by this!! I can't believe something so simple just doesn't work??? Steps to reproduce ERROR: Set Database fields to not allow NULLs (See Picture) Set NerdDinnerEntityModel Dinner class fields' Nullable property to false (See Picture) Add DataAnnotations for Dinner_Validation class (CODE A) Create Dinner repository class (CODE B) Add CREATE action to DinnerController (CODE C) This is blank form before posting (See Picture) This null ERROR occurs when posting a blank form which should be intercepted by the Dinner_Validation class DataAnnotations. Note ERROR message says that "This property cannot be set to a null value. WTH??? (See Picture) The next ERROR occurs during the edit process. Here is the Edit controller action (CODE D) This is the "Edit" form with intentionally wrong input to test Dinner Validation DataAnnotations (See Picture) The ERROR occurs again when posting the edit form with blank form fields. The post request should be intercepted by the Dinner_Validation class DataAnnotations. Same null entry error. WTH??? (See Picture) See screen shots at: http://www.intermedia4web.com/temp/nerdDinner/StackOverflowNerdDinnerQuestionshort.png CODE A: [MetadataType(typeof(Dinner_Validation))] public partial class Dinner { } [Bind(Include = "Title, EventDate, Description, Address, Country, ContactPhone, Latitude, Longitude")] public class Dinner_Validation { [Required(ErrorMessage = "Title is required")] [StringLength(50, ErrorMessage = "Title may not be longer than 50 characters")] public string Title { get; set; } [Required(ErrorMessage = "Description is required")] [StringLength(265, ErrorMessage = "Description must be 256 characters or less")] public string Description { get; set; } [Required(ErrorMessage="Event date is required")] public DateTime EventDate { get; set; } [Required(ErrorMessage = "Address is required")] public string Address { get; set; } [Required(ErrorMessage = "Country is required")] public string Country { get; set; } [Required(ErrorMessage = "Contact phone is required")] public string ContactPhone { get; set; } [Required(ErrorMessage = "Latitude is required")] public double Latitude { get; set; } [Required(ErrorMessage = "Longitude is required")] public double Longitude { get; set; } } CODE B: public class DinnerRepository { private NerdDinnerEntities _NerdDinnerEntity = new NerdDinnerEntities(); // Query Method public IQueryable<Dinner> FindAllDinners() { return _NerdDinnerEntity.Dinners; } // Query Method public IQueryable<Dinner> FindUpcomingDinners() { return from dinner in _NerdDinnerEntity.Dinners where dinner.EventDate > DateTime.Now orderby dinner.EventDate select dinner; } // Query Method public Dinner GetDinner(int id) { return _NerdDinnerEntity.Dinners.FirstOrDefault(d => d.DinnerID == id); } // Insert Method public void Add(Dinner dinner) { _NerdDinnerEntity.Dinners.AddObject(dinner); } // Delete Method public void Delete(Dinner dinner) { foreach (var rsvp in dinner.RSVPs) { _NerdDinnerEntity.RSVPs.DeleteObject(rsvp); } _NerdDinnerEntity.Dinners.DeleteObject(dinner); } // Persistence Method public void Save() { _NerdDinnerEntity.SaveChanges(); } } CODE C: // ************************************** // GET: /Dinners/Create/ // ************************************** public ActionResult Create() { Dinner dinner = new Dinner() { EventDate = DateTime.Now.AddDays(7) }; return View(dinner); } // ************************************** // POST: /Dinners/Create/ // ************************************** [HttpPost] public ActionResult Create(Dinner dinner) { if (ModelState.IsValid) { dinner.HostedBy = "The Code Dude"; _dinnerRepository.Add(dinner); _dinnerRepository.Save(); return RedirectToAction("Details", new { id = dinner.DinnerID }); } else { return View(dinner); } } CODE D: // ************************************** // GET: /Dinners/Edit/{id} // ************************************** public ActionResult Edit(int id) { Dinner dinner = _dinnerRepository.GetDinner(id); return View(dinner); } // ************************************** // POST: /Dinners/Edit/{id} // ************************************** [HttpPost] public ActionResult Edit(int id, FormCollection formValues) { Dinner dinner = _dinnerRepository.GetDinner(id); if (TryUpdateModel(dinner)){ _dinnerRepository.Save(); return RedirectToAction("Details", new { id=dinner.DinnerID }); } return View(dinner); } I have sent Wrox and one of the authors a request for help but have not heard back from anyone. Readers of the book cannot even continue to finish the rest of chapter 1 because of these errors. Even if I download the latest build from Codeplex, it still has the same errors. Can someone please help me and tell me what needs to be fixed? Thanks - Ed.

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  • Symfony include_component() with components from a plugin

    - by Chris T
    All I'd like to do is use include_component to call a component from a plugin that I'm developing <?php #/plugins/fooPlugin/modules/barModule/actions/components.class.php class barModuleComponents extends sfComponents{ /** * Constructor */ function __construct(){ } function executeHello(){ } } ?> and <!-- /plugins/fooPlugin/modules/barModule/templates/_hello.php --> <p>HELLO WORLD!</p> But it won't load if I do this in #/apps/frontend/modules/homepage/templates/indexSuccess.php <?php include_component("barModule", "hello"); ?> XDebug gives me: ( ! ) Fatal error: Call to a member function add() on a non-object in C:\Program Files\WaterProof\PHPEdit\3.6.2\Extensions\Symfony\distribution\1.4\lib\helper\PartialHelper.php on line 360

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  • how to temporarily set makeprg in vim

    - by Haiyuan Zhang
    In the normal case I use vim's make utility I will set makeprg to the Makefile of the project I'm currently working for. Since usually the project will last for weeks or even longer, I don't need to change the setting of makeprg very often . But sometimes I need to write some "foobar" code either for practicing my c++ skill or for prototyping some primitive ideas in my mind. So whenever I switch to the "foobar" mode of vim usage, I need to comments the original makeprg setting add the new setting as following : au FileType c set makeprg=gcc\ % au FileType cpp set makeprg=g++\ % which is really very very inconvenient . when I back to the "normal project mode" of vim usage, I need to change back to the original setting . back and forth .... what I want to know from you guys is that : is it possible to make the setting of makeprg temporarily . for example , define a function in which first set a local value of makeprg and then call make before return form the function call automatically restore makeprg to the value before the function call.

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  • Python urllib.urlopen IOError

    - by Michael
    So I have the following lines of code in a function sock = urllib.urlopen(url) html = sock.read() sock.close() and they work fine when I call the function by hand. However, when I call the function in a loop (using the same urls as earlier) I get the following error: > Traceback (most recent call last): File "./headlines.py", line 256, in <module> main(argv[1:]) File "./headlines.py", line 37, in main write_articles(headline, output_folder + "articles_" + term +"/") File "./headlines.py", line 232, in write_articles print get_blogs(headline, 5) File "/Users/michaelnussbaum08/Documents/College/Sophmore_Year/Quarter_2/Innovation/Headlines/_code/get_content.py", line 41, in get_blogs sock = urllib.urlopen(url) File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/urllib.py", line 87, in urlopen return opener.open(url) File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/urllib.py", line 203, in open return getattr(self, name)(url) File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/urllib.py", line 314, in open_http if not host: raise IOError, ('http error', 'no host given') IOError: [Errno http error] no host given Any ideas?

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  • How do you give variables reference in javascript?

    - by Eric
    I want to give variables reference in javascript. For example, I want to do: a=1 b=a a=2 and have b=2, and change accordingly to a. Is this possible in javascript? If it isn't is there a way to do like a.onchange = function () {b=a}? What I wanted to do was make a function like makeobject which make an object and puts it in an array and than returns it like function makeobject() { objects[objects.length] = {blah:'whatever',foo:8}; } so than I could do a=makeobject() b=makeobject() c=makeobject() and later in the code do for (i in objects) { objects[i].blah = 'whatev'; } and also change the values of a,b and c

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  • Using TextboxList events and callbacks

    - by Wraith
    Has anyone gotten callbacks working with Guillermo Rauch's TextboxList Autocomplete? I've tried multiple ways to bind and multiple events (e.g. hover) - nothing seems to register. $('#entSearch').textboxlist({unique: true, plugins: { autocomplete: { minLength: 3, queryRemote: true, placeholder: false, remote: { url: "{{=URL(r=request, f='call/json/suggest')}}", extraParams: {type: "", guid: ""} } } }, onHover: function(token) { alert('hover 1'); } }); $('#entSearch').hover(function() { alert('hover 2'); }); $('#entSearch').bind('hover', function() { alert('hover 3'); });

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  • Problem with animating the deletion of table rows in jQuery

    - by Victor
    Hey guys, I have written some jQuery code to use the "slideUp" animation when deleting rows from a table. In order for the animation to appear smooth, I wrapped the contents of each TD in the row with DIV tags, and called the slideUp function on the DIVs, removing the actual TDs upon completion of the animation. The code for that is as follows: $("tr[id$=" + rowID + "]").children("td").each(function() { $(this).children("div").slideUp(function() { $(this).parent().remove(); }); }); So far, so good. However, I noticed that this code does not remove the actual TR, only its contents, so I added the following line to remove the TR: $("tr[id$=" + rowID + "]").remove(); The problem is that after I added the line above, the animation quit working. In other words, the row simply disappears without the nice sliding effect. Does anybody know why this is so and how to get around it? Thanks in advance for your insights! Victor

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  • $.getJson> $.each returns undefined

    - by Der Sep
    function getData(d){ Back = new Object(); $.getJSON('../do.php?', function(response){ if(response.type == 'success'){ Back = { "type" : "success", "content" : "" }; $.each(response.data, function(data){ Back.content +='<div class="article"><h5>'+data.title+'</h5>' Back.content +='<div class="article-content">'+data.content+'</div></div>'; }); } else{ Back = {"type" : "error" }; } return Back; }); } console.log(getData()); is returning undefined! why?

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  • How to solve/hack fading semi-transparent PNG bug in IE8?

    - by Soul_Master
    As you know, IE6 has bug that can't display semi-transparent PNG file without using non-standard style like filter. In IE7, this problem is fixed. But It still has some bug about PNG file. It can't correctly display fading semi-transparent PNG file. You can clearly see it when you use show/hide function in jQuery with semi-transparent PNG file. The background of image is displayed with non-transparent black color. Do you have any idea for solve this question by using jQuery. Update Let's see my testing As you see, IE8 always incorrectly displays PNG-24 image. Moreover, IE8 still correctly display PNG-8 image when I fade(jQuery.fadeOut function) it only. But It incorrectly display PNG-8 image when I fade & resize(jQuery.hide function) at the same time. PS. You can download my testing source code from here. Thanks,

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  • Jquery autocomplete not firing on keyup unless focus changes

    - by TheIG
    I am using a jquery autocomplete and i have a keyup event for my textbox. When I enter in a letter the function is called but the box is not populated. Once I click away from the box and then click back into it the autocomplete works great. Really weird issue and I have no idea how to fix it. Any help would be appreciated. here's my code $(document).ready(function(){ var x; var output; x = document.getElementById('site').value; $.getJSON(url,{field: "name",value: x, comparison: "LIKE"}, function(json){ //code to format output $("#site").autocomplete(output, json); }); }); <input type ="text" size ="40" id="site"></input>

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  • Mysql PHP generated table: doesn't work with Tablesorter

    - by echedey lorenzo
    Hi, I found this great Tablesorter plugin for jQuery but I can't make it work with my PHP generated table. Here's the code: <script type="text/javascript"> function table() { $("#container").load("table.php?randval="+Math.random()); } $(document).ready(function() { table(); $("table").tablesorter(); }); </script> Where #container is the div where the table will be and table is the name of the table. I get the table loaded but sorting function is not working. It works if I put the table directly in html in the page.. but I don't see the point in having a static table for sorting. Any help would be very appreciated.

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  • Access violation after GetInterface/QueryInterface in Delphi

    - by W55tKQbuRu28Q4xv
    Hi everyone! First, I'm very new in Delphi and COM, but I should build COM application in Delphi. I read a lot of articles and notes on the internets, but COM and COM in Delphi are still not clear to me. My sources - http://www.everfall.com/paste/id.php?wisdn8hyhzkt (about 80 lines). I try to make a COM Interface and Impl class - it works if I call an interface method from Delphi (I create an impl object via TestClient.Create), but if I try to create an object from outer world (from Java, via com4j) my application crashed with following exception: Project Kernel.exe raised exception class $C0000005 with message 'access violation at 0x00000002: read of address 0x00000002'. If I set a breakpoint in QueryInterface - it breaks, but when I come out from function - all crashes. What I'm doing wrong? What I still missing? What I can/should read about COM (in Delphi) to avoid dumb questions like this?

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  • Ubuntu: Convert OpenOffice Calc to Excel workbook using CLI

    - by Adam Matan
    I need to create an automated report in a spreadsheet format. Unfortunately, There seems to be an easy way to create these reports using OpenOffice Calc, but upper managements wants them in MS Excel format. As these reports are to be created and emailed automatically, is there a nice, command-line way to convert between these file formats?

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  • ListBoxItem.Parent returns nothing, unable to get it thru VisualTreeHelper.GetParent either

    - by Shimmy
    How do I extract the parent container of a ListBoxItem? In the following example I can go till the ListBoxItem, higher than that I get Nothing: <ListBox Name="lbAddress"> <ListBox.ItemTemplate> <DataTemplate> <Button Click="Button_Click"/> </DataTemplate> </ListBox.ItemTemplate> </ListBox> Private Sub Button_Click(sender As Button, e As RoutedEventArgs) Dim lbAddress = GetAncestor(Of ListBox) 'Result: Nothing End Sub Public Shared Function GetAncestor(Of T)(reference As DependencyObject) As T Dim parent = GetParent(reference) While parent IsNot Nothing AndAlso Not parent.GetType.Equals(GetType(T)) parent = GetAncestor(Of T)(parent) End While If parent IsNot Nothing Then _ Return If(parent.GetType Is GetType(T), parent, Nothing) Return Nothing End Sub Public Function GetParent(reference As DependencyObject) As DependencyObject Dim parent As DependencyObject = Nothing If TypeOf reference Is FrameworkElement Then parent = DirectCast(reference, FrameworkElement).Parent ElseIf TypeOf reference Is FrameworkContentElement Then parent = DirectCast(reference, FrameworkContentElement).Parent End If Return If(parent, VisualTreeHelper.GetParent(reference)) End Function Update This is what happens (note that the 'parent' variable remains null):

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  • What files to backup on Lighttpd+MySQL+PHP server

    - by Tomaszs
    I have a VPS with CentOS 5. I would like to create backup of: all my config files tweaks of database, php, server a databases cron settings website files installed applications and their settings (?) What files should i take into account? I don't want to miss any file that will be necessary to restore fast my webserver in case of any failure. And I don't want to create whole backup because entire VPS has like 30 GB of data.

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  • Organize mail with Evolution & Gmail IMAP

    - by Phuong Nguyen
    With thunderbird & Gmail POP, things are very easy. I can create filter that will automatically move the mail to the appropriate sub-folder. However, with evolution & Gmail IMAP, I find things very messy. I cannot figure out how to create filter that will automatically move my email to a sub folder. Please advice. Thanks

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  • Working with WDS

    - by Xaver
    I work with WDS on Windows Server 2008-R2. I need to create some WIM images. For creating images i need the ImageX utility it is member of WAIK. Can i download the ImageX separately from the WAIK? Also i need articles to create images with ImageX (both of them boot and system images)

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  • Checkboxes and Radio Buttons Together in a JTree

    - by Thunderforge
    I'd like to create a JTree that more or less has the following structure (with a hidden root node) [No Option] Main Dish [Radio Button] Steak [Radio Button] Fish [Radio Button] Filet Mignon [Checkbox] Side Dish [Checkbox] Mashed Potatoes [Checkbox] Green Beans [Checkbox] Mixed Vegetables [Checkbox] Dessert [Radio Button] Ice Cream [Radio Button] Pudding [Radio Button] Cake Basically, at least one main dish (but no more than one) can be chosen, any number of side dishes can be chosen (or none, if the "Side Dish" checkbox is unchecked), and only one dessert can be chosen (or none, if the "Dessert" checkbox is unchecked). This article describes how to create a tree that uses JCheckboxes (as I'd like to use for the Side Dish and Dessert sections) by creating a custom Renderer and page 3 of the same article describes how to use Radio buttons (as I'd like to use for the Main Course) section. But it doesn't describe how to mix them up within the same JTree. Is it possible to create a structure like this? And if so, how?

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