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  • replace values in form.data when form fails validation

    - by John
    Hi I have a form field which requires a json object as its value when it is rendered. When the form is submitted it returns a comma seperated string of ids as its value (not a json string). however if the form does not validate i want to turn this string of ids back into a json string so it will display properly (is uses jquery to render the json object correctly). how would i do this? I was thinking of overwriting the form.clean method but when I tried to change self.data['fieldname'] I got the error 'This QueryDict instance is immutable' and when i tried to change self.cleaned_data['fieldname'] it didn't make a difference to the value of the field. Thanks

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  • How do I get a MessageBox like information window to appear in Java?

    - by John McClane
    I'm learning Java and I have no idea how to do this. I dragged a button on the form in Netbeans, double clicked it and it created this event: @Action public void HelloClickMethod() { JOptionPane.showMessageDialog(this, "The message!", "This is supposed to be the MessageBox title."); } This is the exception the IDE brings up. Cannot find symbol. Symbol: showMessageDialog() Edit 1 Now I changed it to this: @Action public void HelloClickMethod() { JOptionPane.showMessageDialog(this, "The message!", "This is supposed to be the MessageBox title.",JOptionPane.ERROR_MESSAGE); } However the IDE is saying I have an error in the word 'this'. "Cannot find symbol". I don't understand. Why is it so dificult and why are the errors so esoteric. :P

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  • Jquery to hightlight elements in a list

    - by John
    Hi I have a ol list: <ol> <li class="group1">item 1</li> <li class="group1">item 2</li> <li class="group2"> item 3</li> <li class="group3">item 4</li> <li class="group1">item 5</li> <li class="group3"> item 6</li> <ol> and a set of checkboxes which correspond to the class names <input type="checkbox" value="group1" />group 1 <input type="checkbox" value="group2" />group 2 <input type="checkbox" value="group3" />group 3 What I want to happen is that when a user clicks on a checkbox to 'tick' it, any li rows which are not checked are fadedOut (change opacity) and then any rows which have the class which matches the value of the checkbox are highlighter (background colour changed to yellow). So for example if group 3 was clicked, item 4 and item 6 would be highlighted. Then if group 2 was clicked item 3 would be highlighted (item 4 and 6 would remain highlighted). If group 2 was un-ticked, item 3 would become faded out although item 4 and 6 would remain highlighted. The code I have at the moment is: $('input').click(function(){ input = $(this); classVal = "." + input.val(); elements = $(classVal ); if (input.is(':checked')) { elements.css("background-color", "#FFFF00"); } else { elements.css("background-color", ""); } }); This handles the highlighting but does not do the fading of the unchecked elements. I know I can change the opacity using css("opacity", 0.33) or fadeTo("slow", 0.33) but not sure how to handle this in the code and where to put it. If any of my other code can be tidied up also please let me know Thanks

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  • Passing data attribute to TextBoxFor not working

    - by john G
    I have the following code inside my ASP.NET MVC 4 razor view: <div> <span class="f">Old Tag</span> @Html.TextBoxFor(model => model.olfTag, new { data_autocomplete_source = Url.Action("AutoComplete", "Home") }) @Html.ValidationMessageFor(model => model.olfTag) </div> But data_autocomplete_source with TextBoxFor will not work. Can anyone give me some advice?

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  • Looking for marg_setValue fix in iPhoneOS

    - by John Smith
    I am trying to compile a library originally written for Cocoa. Things are good until it looks for the function marg_setValue(). It says there is a syntax error before char in marg_setValue(argumentList,argumentOffset,char,(char)lua_toboolean(state,luaArgument)); (it's talking about the third argument, not (char) ) I am trying to port LuaObjectiveCBridge to the iPhone. It has two choices, either using Runtime or Foundation. I have discovered there are some problems with foundation so I am trying runtime. But the compiler is not co-operating.

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  • Quarter as a Count variable in SAS.

    - by John
    Hye Guys, I'm busy working on a time series and am trying to find the commands that allow me to insert a quarter count variable. To keep things simple, the third quarter of 1995 (date my observations start) should be quarter -2, the fourth quarter of 1995 should be -1 etc etc uptill 2006 (should be somewhere around 45 by then). My dates are in date9 format, such as 20JUN04 etc.. Anyone who can help me with the commands I need t o let this work in SAS? Thanks

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  • Font advance calculation problem on Blackberry OS 5.0

    - by John
    I am currently working on my own implementation of a tab bar for a BlackBerry app, where each tab bar has a title that is right aligned (i.e. the last character in each should be the same distance from the right hand side of the screen). To work out where to draw the text I am using the following calculation: screen width - advance of title - indent. The font I am using is 'BBAlpha Sans' (height 28). Using BlackBerry OS 4.6 everything seems to be calculated properly and the text is aligned when I move between tabs, however I am finding that when I use OS 5.0 it doesn't calculate the advance properly and as a result the alignment is off by maybe 5 pixels or so. With the default font (also BBAlpha Sans, but height 24 - for OS 5.0 at least) it works fine in both versions.. but I don't necessarily always want to use the default font/size, so any ideas what could be going wrong? Is this a bug in the 5.0 API? Thanks. Code: public class TitleBarBackground extends Background { .. public void draw(Graphics graphics, XYRect rect) { graphics.pushRegion(rect); .. Font titleBarFont = FontFamily.forName("BBAlpha Sans").getFont(Font.PLAIN, 28); ... int textWidth = titleBarFont.getAdvance(title); graphics.drawText(title, rect.width - textWidth - TITLE_OFFSET, textYOffset); graphics.popContext(); } .. }

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  • How to resolve “Unit JclCompression was compiled with a different version of sevenzip.IOutArchive”?

    - by John
    Hello, There is already a similar question(link).The thing is I don't understand what unit I have to delete. I have installed the latest JCL library and added 'JclCompression' to the uses list in a unit and I get the error: "Unit JclCompression was compiled with a different version of sevenzip.IOutArchive". Please explain to me in a simpler way how to resolve the problem. Thanks in advance!

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  • Rails: unexpected behavior updating a shared instance

    - by Pascal Lindelauf
    I have a User object, that is related to a Post object via two different association paths: Post --(has_many)-- comments --(belongs to)-- writer (of type User) Post --(belongs to)-- writer (of type User) Say the following hold: user1.name == "Bill" post1.comments[1].writer == user1 post1.writer == user1 Now when I retrieve the post1 and its comments from the database and I update post1.comments[1].writer like so: post1.comments[1].writer.name = "John" I would expect post1.writer to equal "John" too. But it doesn't! It still equals "Bill". So there seems to be some caching going on, but the kind I would not expect. I would expect Rails to be clever enough to load exactly one instance of the user with name "Bill"; instead is appears to load two individual ones: one for each association path. Can someone explain how this works exactly and how I am to handle these types of situations the "Rails way"?

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  • When are sqlite3 views updated?

    - by John Smith
    I have a database on the iPhone which as a view. When I update the dependent tables the view is not updated. It's only updated when I close and reopen the application. From there onwards things are okay: updates reflect immediately. Is there something I need to do to force update of a VIEW?

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  • iPhone UISlider not visible

    - by John Qualis
    I want to add a UISlider to my app programmatically without using the IB. I am adding a UISlider to my UIViewController using the code below. However I don't see the slider when the view comes up. What am I missing? I am using iPhone SDK 3.1.2. Appreciate any help. @synthesize slider; .... - (void)viewDidLoad { ... ... slider = [[UISlider alloc] initWithFrame: CGRectMake(0, 480 - 80, 300, 20)]; slider.minimumValue = 0.0; slider.maximumValue = 100.0; slider.tag = 0; slider.value = 50; slider.continuous = YES; slider.enabled = YES; [slider addTarget:selfaction:@selector(handleSlider:)forControlEvents:UIControlEventValueChanged]; self.view addSubview:slider]; In the .h file ... UISlider *slider; ... @property (nonatomic, retain) UISlider *slider; - (void) handleSlider:(id)sender;

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  • C++ How do I properly use getline for ifstream members.

    - by John
    Ok so I have a problem with getline. I have a file that contains a couple strings. I created it by myself and I have each string on a seperate line. Ex. textfile.txt Line 1 Line 2 Line 3 Line 4 //Little snip of code ifstream inFile("textfile.txt"); getline(inFile, string1); When I debug the program and ask it to print out string1 it shows that "Line 1\r" is saved into string1. I understand that it's from me actually hitting enter when I created the file. This problem causes my program to have a segmentation fault. I know my code works because if I use ofstream to write the file first and then i read it in, it works. So for my quesiton, is their anyway to use the getline function without it picking up the escape sequence \r? If i am not clear just let me know.

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  • Zend redirect problem

    - by John
    I'm trying to redirect to http://localhost/site/public/admin/login from http://localhost/site/public but for some reason, it keeps redirecting to http://localhost/admin/login The code I am using is: $this->_response->setRedirect('/admin/login')->sendResponse(); This is really frustrating me, and any help would be grealy appreciated

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  • How should important terms be emphasized in documentation?

    - by John Rasch
    Software will often introduce and formalize concepts that may have ambiguous definitions in the real world. For example, in an attendance tracking system, an Occurrence refers to an Excused Absence, an Unexcused Absence, or a Tardy. In technical documentation (both in helper text and in user guides, etc), should these concepts be proper nouns, and as such, should they be capitalized in usage? In other words, which of the following examples is more appropriate: After an Occurrence has been created, it may be converted into an Excused Absence once the Approval Form has been uploaded. or After an occurrence has been created, it may be converted into an excused absence once the approval form has been uploaded.

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  • How to use Hibernate SchemaUpdate class with a JPA persistence.xml?

    - by John Rizzo
    I've a main method using SchemaUpdate to display at the console what tables to alter/create and it works fine in my Hibernate project: public static void main(String[] args) throws IOException { //first we prepare the configuration Properties hibProps = new Properties(); hibProps.load(Thread.currentThread().getContextClassLoader().getResourceAsStream("jbbconfigs.properties")); Configuration cfg = new AnnotationConfiguration(); cfg.configure("/hibernate.cfg.xml").addProperties(hibProps); //We create the SchemaUpdate thanks to the configs SchemaUpdate schemaUpdate = new SchemaUpdate(cfg); //The update is executed in script mode only schemaUpdate.execute(true, false); ... I'd like to reuse this code in a JPA project, having no hibernate.cfg.xml file (and no .properties file), but a persistence.xml file (autodetected in the META-INF directory as specified by the JPA spec). I tried this too simple adaptation, Configuration cfg = new AnnotationConfiguration(); cfg.configure(); but it failed with that exception. Exception in thread "main" org.hibernate.HibernateException: /hibernate.cfg.xml not found Has anybody done that? Thanks.

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  • How to get file path using FileUpload to be read by FileStream?

    - by john ryan
    I have a Method that open excel file and read it through exceldatareaderClass that i have downloaded in codeplex by using filestream. Currently I just declared the exact directory where the filestream open an excel file.And it works fine. Stream stream = new FileStream("C:\\" + FileUpload.PostedFile.FileName, FileMode.Open, FileAccess.Read, FileShare.Read); Now i need to read the excel file wherever location the user place it like on windows forms fileupload.FileStream needs the exact location where the file is located. How to do this.? Example: Sample.xls is located on My Documents the file path should be like : C:\Documents and Settings\user\My Documents\ string openpath ="" ;//filepath Stream stream = new FileStream(openpath+ FileUpload.PostedFile.FileName, FileMode.Open, FileAccess.Read, FileShare.Read); Thanks in Regards

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  • Ignoring unclosed tags from another <div>?

    - by Mike
    I have a website where members can input text using a limited subset of HTML. When a page is displayed that contains a user's text, if they have any unclosed tags, the formatting "bleeds" across into the next area. For example, if the user entered: Hi, my name is <b>John Then, the rest of the page will be bold. Ideally, there'd be someting I could do that would be this simple: <div contained>Hi, my name is <b>John</div> And no tags could bleed out of that div. Assuming there isn't anything this simple, how would I accomplish a similar effect? Or, is there something this easy? Importantly, I do not want to validate the user's input and return an error if they have unclosed tags, since I want to provide the "easiest" user interface possible for my users. Thanks!

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  • Is there an existing algorithm for this notation translation/conversion?

    - by John
    A system has a notation that would require writing an expression like (A+B)*C as #MUL(#ADD(A,B),C). Is there already an algorithm to do this kind of notation conversion so users can enter in a more conventional way? In other words an algorithm to convert from infix - my notation. First issue is I don't know an exact name for my notation... it's similar to reverse-polish but not quite. Every operator is encoded as a function taking arguments.

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