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  • PHP Simple XML Parse Attributes

    - by jwzk
    I have an XML file with data stored like this: <myxml> <item name="column18">88744544</item> <item name="column11">47884994</item> <item name="column3">44788894</item> </myxml> I need to first check (and be sure that) column11 is defined (there is no particular order), and then get its value. Using simple XML is not seeming to work too well. I have the following, but the value is missing. <?php if (count($xml->myxml->item) > 0) { foreach ($xml->myxml->item as $item) { var_dump($item->attributes()); } } ?>

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  • What is the '^' in Objective-C

    - by Chris Paterson
    What does the '^' mean in the code below? @implementation AppController - (IBAction) loadComposition:(id)sender { void (^handler)(NSInteger); NSOpenPanel *panel = [NSOpenPanel openPanel]; [panel setAllowedFileTypes:[NSArray arrayWithObjects: @"qtz", nil]]; handler = ^(NSInteger result) { if (result == NSFileHandlingPanelOKButton) { NSString *filePath = [[[panel URLs] objectAtIndex:0] path]; if (![qcView loadCompositionFromFile:filePath]) { NSLog(@"Could not load composition"); } } }; [panel beginSheetModalForWindow:qcWindow completionHandler:handler]; } @end === I've searched and searched - is it some sort of particular reference to memory?

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  • VS 2010 Debugger: Any way to search an object for a particular value?

    - by Dr. Zim
    I am trying to search the "this" object in an ASP.NET MVC 2 for a string value. In a view, I set the partial view input tag prefix and am trying to figure out how to reference it in the partial view itself. For example: Html.EditorFor(m => m, "templateName", "fieldPrefix"); In the partial view, I would like to search the "this" object for my fieldPrefix string to see where the MVC folks decided to store it. Any ideas?

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  • Serving images from Amazon S3 in PHP application

    - by luckytaxi
    So it just occurred to me that once I upload profile pics to S3, I have to figure out a way to keep track of the files. For example, if "susan" uploads 3 profile pics, I need to recall those 3 pictures and display it on her profile page if someone views her page. With that said, would the following work? User uploads picture from form Save file information (filename, user info, etc...) into DB and reference URL from S3 Upload photos to S3 When displaying pictures, I'll query the DB for the info and display the images from S3 accordingly.

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  • Have visual studio copy x64 DLL or x86 DLL when building a C# project

    - by MrPurpleStreak
    We're building a C# app that uses an external DLL for Sqlite.NET. This is a .NET dll but it embeds a C dll inside it and so it comes in x86 and x64 flavours. We add a reference to the x86 version in the project so when we build and run on x86 it's fine. Visual studio copies the dll to the bin folder and runs. On x64 it still copies the x86 version of course and then when it runs it fails to load it. We get round this by temporarily setting our project to be x86 only, but ideally we'd like to tell visual studio to copy the correct version depending on which flavour of machine it is. Any ideas how?

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  • Fitting maximum amount of shapes on a surface

    - by Fuu
    In industry, there is often a problem where you need to calculate the most efficient use of material, be it fabric, wood, metal etc. So the starting point is X amount of shapes of given dimensions, made out of polygons and/or curved lines, and target is another polygon of given dimensions. I assume many of the current CAM suites implement this, but having no experience using them or of their internals, what kind of computational algorithm is used to find the most efficient use of space? Can someone point me to a book or other reference that discusses this subject?

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  • Error when accessing IIS 7 server variable from ASP.Net MVC

    - by StephSpr
    I have an ASP.Net MVC application which works fine on IIS 6.0 / Windows Server 2003. When installed on IIS 7.5 / Windows Server 2008 (integrated mode), it works but when the application attempts to generate an URL, it runs into the following error: [NullReferenceException: Object reference not set to an instance of an object.] System.Web.HttpServerVarsCollection.Get(String name) +10960764 System.Web.Mvc.PathHelpers.GenerateClientUrlInternal(HttpContextBase httpContext, String contentPath) +345 System.Web.Mvc.PathHelpers.GenerateClientUrl(HttpContextBase httpContext, String contentPath) +80 System.Web.Mvc.UrlHelper.GenerateUrl(String routeName, String actionName, String controllerName, RouteValueDictionary routeValues, RouteCollection routeCollection, RequestContext requestContext, Boolean includeImplicitMvcValues) +256 System.Web.Mvc.UrlHelper.Action(String actionName, String controllerName, RouteValueDictionary routeValues) +36 It looks like IIS7 fails to return the server name. There should be a configuration to set, but I couldn't find anything like that. Do you have any idea to fix this issue ? Thanks,

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  • How to execute ant using java and captured the output?

    - by Iso
    Hi, I have an ant build file that contains JUnit test suite that I would like to execute. Currently I just right click and run the build file from Eclipse. I want to write a java code that can execute the ant build file automatically. So I just run the code and ant will be executed. Second is I want to capture the test result. Currently the result is based on JUnit HTML report. I want to make my own simple test report. I read there is JUnitResultFormatter but I can't find the instructional step by step how to use it. Can anyone point me the reference? Thanks in advance.

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  • Where does output of print in kernel go?

    - by apoorv020
    I am debugging a driver for linux (specifically ubuntu server 9.04), and there are several printf statements in the code. Where can I view the output of these statements? EDIT1: What i'm trying to do is write to kernel using the proc file-system. The print code is static int proc_fractel_config_write(struct file *file, const char *argbuf, unsigned long count, void *data) { printk(KERN_DEBUG "writing fractel config\n"); ... In kern.log when I see the following message when i try to overwrite the file /proc/net/madwifi/ath1/fractel_config (with varying time of course). [ 8671.924873] proc write [ 8671.924919] Any explainations?

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  • Linq: comparison with nonexisting value should not cause the exception, but it does

    - by Seacat
    Hello, Given I don't know if the parameter will be null or not and I want to use it in the following way: if Param != null then compare with its id if Param == null then compare with null. Something like that: var c = from cat in context.Categories where ParamCat != null && cat.ParentId == ParamCat.Id || ParamCat == null && cat.ParentId == null select c; If ParamCat is null as soon as I try to get something from c (for example c.Count()) it throws the exception. Usually when we use some kind of condition it stop comparison as soon as condition fail especially if we use AND. For example this code will not cause any exception: if (ParamCat != null && cat.ParentId == RaramCat.Id) { } If so, why the linq code above throw exception? (Null reference) Thanks

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  • Copy an array backwards? Array.Copy?

    - by daniel
    I have a List<T> that I want to be able to copy to an array backwards, meaning start from List.Count and copy maybe 5 items starting at the end of the list and working its way backwards. I could do this with a simple reverse for loop; however there is probably a faster/more efficient way of doing this so I thought I should ask. Can I use Array.Copy somehow? Originally I was using a Queue as that pops it off in the correct order I need, but I now need to pop off multiple items at once into an array and I thought a list would be faster.

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  • Retrieving content of a txt file from URL to Android

    - by eightx2
    I would like to be able to retrieve contents of a .txt file from the internet, and load it in an EditText. I tried using the code on this page: Reading Text File From Server on Android It didn't work, as you might have guessed. I've read on numerous sites about this type of problem, but I can't get anything to work. Someone suggested AndroidHttpClient (http://developer.android.com/reference/android/net/http/AndroidHttpClient.html), but I simply can't find any examples with this. As I'm a newbie in Android programming, I would love if someone could please give me a small example.

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  • Variable function name Javascript.

    - by Vladimir
    I'm sorting array: myArray.sort(comparators.some_comparator); and I have several comparator to choose from: comparators = { asc_firstname_comparator : function(o1, o2){ ... } desc_firstname_comparator : function(o1, o2){ ... } etc... } I want to write function which returns certain comparator depending on input data. It should figure out comparator from string inputs, something like this: function chooseComparator(field, order){ return "comparators."+order+"_"+field+"_comparator"; } So is it possible to pass only function name string to sort() method or I'll need to pass reference to correct comparator somehow?

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  • Using NSArray for C-type int comparisons

    - by Andrew Barinov
    I would like to iterate through an NSArray of ints and compare each one to a specific int. All ints are C type ints. The code I am using is as follows: -(int)ladderCalc: (NSArray*)amounts: (int)amount { int result; for (NSUInteger i=0; i< [amounts count]; i++) { if (amount < [amounts objectAtIndex:i]); { // do something } // do something } } However I get an error when comparing the int amount to the result of [amounts objectAtIndex:i] because you cannot compare id to int. Why is the id involved in this case? Shouldn't objectAtIndex just return the object at the index specified? Is it possible to cast the object returned to an C int and then do the comparison? Or should I just dispense with NSArray and do this type of thing in C?

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  • Tell me how to use ActiveRecord#after_add

    - by Small Wolf
    Hey,Guys! Now I hava a problem,how can I make the callback#after_add receive a reference to the join model in a has_many :through association? my code like this: class Emergency has_many :departments, :through => :eme_references, :after_add => Proc.new { |eme_reference| eme_reference.eme_flag = 1} end the attribute eme_flag is the model EmeReference's attribute! but in the block ,i get the eme_reference.class is Emergency. I want to set the attribute eme_flag of the model EmeReference. That is my question! cheers!

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  • Scoping two models on approved

    - by Shaun Frost Duke Jackson
    I have three models (Book,Snippet,User) and I'd like to create a scope for where(:approved = true) I'm doing this so I can use the merit gem to define ranking based on count of approved. I'm thinking that writing this as a scope might be to complex but I don't know as I've just started leaning scopes. I've currently got this in my Book & Snippet Model: scope :approved, -> { where(approved: true) } I've playing around with this in my user model but I don't think it's correct: scope :approved, joins(:books && :snippets) Could anyone help start me off or give me some suggestions on what to read?

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  • Entity Framework (4.0) how to exclude a related table.

    - by Kohan
    I have just updated to using EF 4.0 where before i was using Linq 2 SQL. I have a query: var UserList = this.repository.GetUsers(); return Json(UserList, JsonRequestBehavior.AllowGet); This was generating an error: "A circular reference was detected while serializing an object of type" This prompted this code which worked fine in L2S: var UserList = this.repository.GetUsers(); foreach (User u in UserList){ u.Subscriptions = null; } return Json(UserList, JsonRequestBehavior.AllowGet); How can i stop EF from looking into the Subscriptions table, i just want the Userlist, none of the related properties and the above example does not seem to work for this. Cheers, Kohan

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  • 2 or more Controls only 1 is considered Active

    - by Don
    I have 2 controls (MyCtrl) next to each other called ctrlLeft and ctrlRight. Whenever one receives interaction it is considered active (by default the left one). I override OnDraw and customize the look of the active one a bit. Currently I have a property Active and an event that I subscribe to from all MyCtrl in there I store a reference to the active one like this: if (sender is MyCtrl) { ctrlActive = (sender as MyCtrl); ctrlLeft.Active = !(ctrlRight.Active = (ctrlActive == ctrlRight)); } Either way I need to have ctrlActive as I use it for other things but what I am wondering is if this is the best way make them aware of each other? Another option I thought of was to store references to every possible MyCtrl and then loop through em all and activate / deactivate the one that match sender just in case I in the future add a ctrlMiddle. Are my thoughts wrong, is there better options to do this. For example, how does radiobuttons accomplish their similar functionality?

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  • Sortable with scriptaculous problems

    - by user195257
    hello, Im following a few tutorials to sort a list, but i can't get the DB to update. The drag drop side of things is working, also, i javascript alert() the serialize list onUpdate and the order is printed out as follows: images_list[]=20&images_list[]=19 etc... So the sorting and dragging is working fine, i just cant get the database to update, this is my code. <script type="text/javascript"> Sortable.create("images_list", { onUpdate: function() { new Ajax.Request("processor.php", { method: "post", parameters: { data: Sortable.serialize("images_list") } }); } }); processor.php code: //Connect to DB require_once('connect.php'); parse_str($_POST['data']); for ($i = 0; $i < count($images_list); $i++) { $id = $images_list[$i]; mysql_query("UPDATE `images` SET `ranking` = '$i' WHERE `id` = '$id'"); } Any ideas would be great, thankyou!

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  • problem in decreasing page's queries

    - by Mac Taylor
    hey guys i have a tag table in my php/mysql project that looks like this Table name : bt_tags Table fileds : tid,tag and for every story rows there is a filed named : tags Table name: stories table filed : tags that saved in this field as ids 1 5 6 space between them now problem : when using while loop to fetch all fields in story table , the page uses 1 query to show every stories' detail but for showing tag's names , i should query another table to find names , we have ids stored in story table now i used for loop between while loop to show tag names but im sure there is a better way to decrease page queries how can i improve this script and show tag's names without using *for loop ?* $result = $db->sql_query("SELECT * FROM ".STORY_TABLE." "); while ($row = $db->sql_fetchrow($result)) { //fetching other $vars ---- $tags_id = explode(" ",$row['tags']); $c = count($tags_id); for($i=1;$i<$c-1;$i++){ list($tag_name,$slug) = $db->sql_fetchrow($db->sql_query( 'SELECT `tag`,`slug` FROM `bt_tags` WHERE `tid` = "'.tags_id[$i].'" LIMIT 1' )); $sow_tags = '$tag_name,'; }

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  • Passing an object as a parameter to a windows service

    - by user220723
    Is there some way to pass an object to a windows service? I know the method myServiceController.Star(string[] arg) but i need to pass a more complex object than a string array. Actually, i don't need the object to be passed as a parameter, what i really needs is that the service can use an object created in a windows forms application. I've tried using System.Web.Script.Serialization.JavaScriptSerializer.Serialize method to convert the object into a Json but i couldn't because the object contains a circular reference. I also tried using pointers, but i couldn't becouse it is a managed type object. Any idea what can i do?

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  • Making Django ignore string literals

    - by James
    UPDATE: It turns out this is a deeper question than I thought at first glance - the issue is that python is replacing the string literals before they ever get to django. I will do more investigating and update this if I find a solution. I'm using django to work with LaTeX templates for report generation, and am running into a lot of problems with the way Django replaces parts of strings. Specficially, I've run into two problems where I try to insert a variable containing latex code. The first was that it would replace HTML characters, such as the less than symbol, with their HTML codes, which are of course gibberish to a LaTeX interpreter. I fixed this by setting the context to never autoescape, like so: c = Context(inputs) c.autoescape = False However, I still have my second issue, which is that Django replaces string literals with their corresponding characers, so a double backslash becomes \, and \b becomes a backspace. How can I force Django to leave these characters in place, so inputs['variable'] = '{\bf this is code} \\' won't get mangled when I use {{variable}} to reference it in the django template?

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  • Filtering and then counting distinct values

    - by Deon
    This is for Excel: I've been tasked with counting distinct records after I have filtered the data. I have 330 rows with column A containing the 'name' and in Column B I have the name of a test that was done for each 'name', which each 'name' could have taken several iterations of the same test. The test results are in Column C. Col A -Student Col B -Exam Col C - Grade Student 1 Exam 1 .80 Student 2 Exam 1 .50 Student 3 Exam 1 .90 Student 2 Exam 1 .75 Student 4 Exam 1 .90 Student 5 Exam 1 .55 Student 2 Exam 2 .90 Student 1 Exam 2 .90 .... .... ... If I filter col B for Exam 1, I want to count the unique number of students that have taken Exam 1.

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  • iphone app hangs in AppDelegate (?)

    - by d_CFO
    No nib/IB, so I've inserted "myAppDelegate" in main and deleted the reference to main.xib in info.plist. Debug continues nicely through all five tab controllers; they seem to have gotten properly loaded into the nav controller. In fact, control passes out of the last "}" in applicationDidFinishLaunching. But there was no (visible) response back at [window addSubview:[tabBarController view]]; and [window makeKeyAndVisible]; statements, much less to the loadView within the first tab (program execution never gets there). The last line is, UIApplication _performInitializationWithURL:sourceBundleID:]. I missed a step? I executed a step improperly?

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  • Enable GD support in PHP

    - by Don
    Hi, I'm trying to install pixelpost on an Apache server on windows. The installer is failing because: Pixelpost will not run if your PHP installation is not compiled with the GD graphics library. I've added the following line to php.ini extension=php_gd2.dll But I still get the same error message. When I run phpinfo() I don't see any reference to GD, so I guess it really isn't installed. I searched for php_gd2.dll and it's in the ext subfolder of my PHP root dir. I know nothing about PHP, so be gentle with me. Thanks, Don

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