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  • [Rails] ActiveRecord using Safari Sqlite

    - by Gregory
    Hi, I am build a webapp for iphone using Phonegap, and I want to create a DB on the device and not on my server. I've seen that there is a Safari Sqlite database, but I haven't been able to find any information about using this database with active record. Does someone knows how to do so? Best, Gregory

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  • HTML - Correct way of coding a checkbox with a Label.

    - by egarcia
    I've been using formtastic in order to generate HTML forms on rails applications. My question, however, is really HTML-related. Today I found a strange behaviour on the way formtastic generates checkboxes (fields of type :boolean on formtastic lingo). The rest of the fields (non-checkboxes) are generated this way: <li> <label for="my_textbox_field">My TextBox</label> <input id="my_textbox_field" type="text" ... > </li> Checkboxes, however, are enclosed inside their <label> tags completely - like this: <li> <label for="my_boolean_field"> <input id="my_boolean_field" type="checkbox" ... > This is my boolean field </label> </li> Formtastic phylosophy seems to be based on the Learning to Love Forms presentation. In effect, on slide 36 of that presentation this structure is suggested for checkboxes. I guess in the presentation itself the presenter explained why this was done, but it is not written on the slides. Can anyone tell me why enclosing checkboxes inside their <label> tag might be a good idea, as opposed to putting them outside, like with textboxes?

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  • Mobile HTML pages basics

    - by vtortola
    Hi, Which are the basics for create a web page for a mobile device? I'm developing something that is very simple, actually it's a table and several links, but when I open it with my Android phone I see it very very small, and I have to zoom with my fingers ir order to see it; but, when I access a page ready for mobile devices I can see it prety clear form the begining. How can I do that? Cheers.

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  • ifstream Open function not working

    - by Dave Swersky
    I've been all over the ifstream questions here on SO and I'm still having trouble reading a simple text file. I'm working with Visual Studio 2008. Here's my code: // CPPFileIO.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <fstream> #include <conio.h> #include <iostream> #include <string> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { ifstream infile; infile.open("input.txt", ifstream::in); if (infile.is_open()) { while (infile.good()) cout << (char) infile.get(); } else { cout << "Unable to open file."; } infile.close(); _getch(); return 0; } I have confirmed that the input.txt file is in the correct "working directory" by checking the value of argv[0]. The Open method just won't work. I'm also having trouble debugging- should I not be able to set a watch on "infile.good()" or "infile.is_open()"? I keep getting "Error: member function not present." EDIT: Updated code listing with full code from .CPP file. UPDATE: The file was NOT in the Current Working Directory. This is the directory where the project file is located. Moved it there and it works when debugging in VS.NET.

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  • Why is PHP not allowing comparison?

    - by dcp3450
    I'm using PHP to read if an entry in my table on the database is set to "yes" or "no" and auto check the radio button that corresponds: <?php include 'file.php'; $query = "SELECT * FROM TABLE"; $runquery = odbc_exec($connect,$query); $status= odbc_result($runquery,"status"); odbc_close($file); ?> <form> <div class="formContainer"> <fieldset> <legend>Campus Alert<span class="tooltip">Turn campus alert on and off.</span></legend> <?php echo $status; ?> Yes <input type="radio" name="alertStatus" id="alertStatus" value="yes" <?php if($status== "yes") echo "checked";?>> No <input type="radio" name="alertStatus" id="alertStatus" value="no" <?php if($status== "no") echo "checked";?>> </fieldset> </div> the is for debugging so I can make sure what the database says and the form's reaction is correct. It prints "yes" (no quotes). However, the if statement will not respond. Any idea why it's doing this?

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  • Application as part of Android Built

    - by Gidiyo
    Hi, I had built a application using the Android SDK. Now I would like to package this application as part of the Android build. So that when I port Android into my device, it will appear in the Application menu. I tried, copying the apk file into the package folder, and include it in the make file. Doesn't work. How should I do it?

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  • IBasic Accumulator

    - by Tara
    I am trying to do an accumulator in IBasic for a college assignment and I have the general stuff down but I cannot get it to accumulate. The code is below. My question is how do I get it to accumulate and pass to the different module. I'm trying to calculate how many right answers the user gets. Also, i need to calculate the percentage of right answers. so if the user gets 9 out of 10 right theyed answer 90% right. 'October 15, 2009 ' 'Lab 7.5 Programming Challenge 1 - Average Test Scores ' 'This is a dice game ' declare main() declare inputName(name:string) declare getAnswer(num1:int, num2:int) declare getResult(num1:int, num2:int, answer:int) declare avgRight(getRight:int) declare printInfo(name:string, getRight:int, averege:float) openconsole main() do:until inkey$<>"" closeconsole end sub main() def name:string def num1, num2, answer, total, getRight:int def averege:float inputName (name) getRight = 0 For counter = 1 to 10 getRight = getAnswer(num1, num2) getRight = getRight + 1 next counter average = avgRight (getRight) printInfo(Name, getRight, average) end sub inputName (name) Input "Please enter your name: " ,name return sub getAnswer(num1, num2) def answer, getRight:int num1 = rnd (10) + 1 num2 = rnd (10) + 1 Print num1, "+ " ,num2 Input "What is the answer to the equation? " ,answer getRight = getResult(num1, num2, answer) return getRight sub getResult(num1, num2, answer) def getRight:int if answer = num1 + num2 getRight = 1 else getRight = 0 endif return getRight sub avgRight(getRight) def average:float average = getRight / 10 return average sub printInfo(name, getRight, averege) Print "The students name is: " ,name Print "The number right is: " ,getRight Print Using ("&##.#&", "The average right is " ,averege * 100, "%") return

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  • Why doesn't onkeydown working properly on IE?

    - by Fabian
    function checkEnter(event) { var charcode; if (event && event.which) { charcode = event.which; alert("Case 1. event.which is " + charcode); } else if (event && !event.which) { charcode = event.keyCode; alert("Case 2. event.keyCode is " + charcode); } document.getElementById("text1").value=""; } <input type="text" id="text1" onkeyup="checkEnter(event)" /> The above function works on both IE7 and Chrome. function checkKeyPressed() { document.onkeydown = function(event) { var charcode; if (event && event.which) { charcode = event.which; alert("charcode is " + charcode); } else if (event && !event.which) { charcode = event.keyCode; alert("charcode (keyCode) is " + charcode); } } } <input type="button" id="button1" onclick="checkKeyPressed(event)" value="Button" /> However this one works only in Chrome. Any idea why?

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  • Create combined client side and server side validation in Symfony2

    - by ausi
    I think it would be very useful to create client side form validation up on the symfony2 Form and Validator components. The best way to do this would be to pass the validation constraints to the form view. With that information it would be possible to make a template that renders a form field to something like this: <div> <label for="form_email">E-Mail</label> <input id="form_email" type="text" name="form[email]" value="" data-validation-constraints='["NotBlank":{},"MinLength":{"limit":6}]' /> </div> The JavaScript part then would be to find all <input> elements that have the data-validation-constraints attribute and create the correct validation for them. To pass the validation constraints to the form view i thought the best way would be to create a form type extension. That's the point of my Question: Is this the correct way? And how is this possible? At the Moment my form type extension looks like this: use Symfony\Component\Form\FormInterface; use Symfony\Component\Form\FormView; use Symfony\Component\Form\FormBuilder; class FieldTypeExtension extends \Symfony\Component\Form\AbstractTypeExtension{ public function getExtendedType(){ return 'field'; } public function buildView(FormView $view, FormInterface $form) { // at this point i didn't find a way to get the // validation constraints out of the $form // the `getAllValidationConstraints` here is just an example $view->set('validation_constraints', $form->getAllValidationConstraints()); } } How can i get all validation constraints applied to one form field out of the FormInterface object?

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  • What does jailbreak do to the iPhone technically?

    - by Thomas
    Hello all: I am an iPhone developer, and would like to get to know more about the internals of the OS and device. I know HOW to jailbreak, but I want to know specifically what it does to the system. I've been looking for info about it, but can't find anything solid. If anyone knows or can point me to resources, I'd greatly appreciate it. Thanks! Thomas

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  • Django: Odd mark_safe behaviour?

    - by Mark
    I wrote this little function for writing out HTML tags: def html_tag(tag, content=None, close=True, attrs={}): lst = ['<',tag] for key, val in attrs.iteritems(): lst.append(' %s="%s"' % (key, escape_html(val))) if close: if content is None: lst.append(' />') else: lst.extend(['>', content, '</', tag, '>']) else: lst.append('>') return mark_safe(''.join(lst)) Which worked great, but then I read this article on efficient string concatenation (I know it doesn't really matter for this, but I wanted consistency) and decided to update my script: def html_tag(tag, body=None, close=True, attrs={}): s = StringIO() s.write('<%s'%tag) for key, val in attrs.iteritems(): s.write(' %s="%s"' % (key, escape_html(val))) if close: if body is None: s.write(' />') else: s.write('>%s</%s>' % (body, tag)) else: s.write('>') return mark_safe(s.getvalue()) But now my HTML get escaped when I try to render it from my template. Everything else is exactly the same. It works properly if I replace the last line with return mark_safe(unicode(s.getvalue())). I checked the return type of s.getvalue(). It should be a str, just like the first function, so why is this failing?? Also fails with SafeString(s.getvalue()) but succeeds with SafeUnicode(s.getvalue()). I'd also like to point out that I used return mark_safe(s.getvalue()) in a different function with no odd behavior. The "call stack" looks like this: class Input(Widget): def render(self): return html_tag('input', attrs={'type':self.itype, 'id':self.id, 'name':self.name, 'value':self.value, 'class':self.itype}) class Field: def __unicode__(self): return mark_safe(self.widget.render()) And then {{myfield}} is in the template. So it does get mark_safed'd twice, which I thought might have been the problem, but I tried removing that too..... I really have no idea what's causing this, but it's not too hard to work around, so I guess I won't fret about it.

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  • MFMailComposeViewController in landscape

    - by Jatin
    My application is in landscape mod.When i call MFMailComposeViewController through Present model view, it comes in landscape mod.I rotate device and MFMailComposeViewController view goes to portrait mod i want to restrict this rotation it should always be in landscape mod only.Is there any way to do it..

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  • jqModal/JQuery problem, div not updating with new content?

    - by echoesofspring
    I'm hoping someone can point a relative jQuery/jqModal newbie in the right direction for debugging this error. I'm loading an html fragment into a div and then use jqModal to display that div as a modal dialog. The problem is that the div is displayed but not with my updated html. I'm showing my jqModal dialog in the response from a jquery call, function foo is called from an onclick event: function foo(url) { $.ajax({ type: "GET", url: url, success: function(msg) { $('#ajaxmodal').html(msg); $('#ajaxmodal').jqmShow(); } }); } ajaxmodal is a simple div. Initially I thought the problem must be in the html snippet (msg) I'm passing to the callback, but I don't think that's it, I get the err (see below) even when I comment out the $('#ajaxmodal').html(msg) line or pass it hardcode html. I think I have jqModal configured correctly, other calls using our ajaxmodal div work correctly, I'm able to display the modal, update the content based the server response, etc. When I try to debug in firebug, I get the following error following the call to .jqmShow(). I have seen the err on occasion in other places when it seemed maybe the page hadn't loaded yet, and I confess I'm confused about that, since we've wrapped our jqModal selectors in a $(document).ready() call, so maybe I have a larger issue that this call just happens to trigger? From the jquery.jqModal.js file, line 64: js err is $(':input:visible',h.w)[0] is undefined in the line: f=function(h){try{$(':input:visible',h.w)[0].focus();}catch(_){}} When I step through this in firefox, h.w[0] seems ok, it references our '#ajaxmodal' div. Thanks in advance for any suggestions in tracking this down?

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  • Jquery Insert element before <tr>

    - by Jerry
    Hi all I am trying to insert a block element Insert something before another . I am not sure if I am using the right method but here is my code. Hope you guys can help. Thanks! Jquery $("#addMatch").click(function(){ $("<td>New insert</td>").insertBefore("#addMatch").closest('tr'); return false; //this would insert the <td>New insert</td> before the //<td><input type="button" id="addMatch" name="addMatch" value="Add //Match" </td> but not <tr> }); Html <tr> <td>some data</td> </tr> //can't tell how many tr would show before the last "addMatch" button. It's dynamic. // I want the <td>New insert</td> show up here. <tr> <td><input type="button" id="addMatch" name="addMatch" value="Add Match" </td> </tr>

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  • How to Create Deterministic Guids

    - by desigeek
    In our application we are creating Xml files with an attribute that has a Guid value. This value needed to be consistent between file upgrades. So even if everything else in the file changes, the guid value for the attribute should remain the same. One obvious solution was to create a static dictionary with the filename and the Guids to be used for them. Then whenever we generate the file, we look up the dictionary for the filename and use the corresponding guid. But this is not feasible coz we might scale to 100's of files and didnt want to maintain big list of guids. So another approach was to make the Guid the same based on the path of the file. Since our file paths and application directory structure are unique, the Guid should be unique for that path. So each time we run an upgrade, the file gets the same guid based on its path. I found one cool way to generate such 'Deterministic Guids' (Thanks Elton Stoneman). It basically does this: private Guid GetDeterministicGuid(string input) { //use MD5 hash to get a 16-byte hash of the string: MD5CryptoServiceProvider provider = new MD5CryptoServiceProvider(); byte[] inputBytes = Encoding.Default.GetBytes(input); byte[] hashBytes = provider.ComputeHash(inputBytes); //generate a guid from the hash: Guid hashGuid = new Guid(hashBytes); return hashGuid; } So given a string, the Guid will always be the same. Are there any other approaches or recommended ways to doing this? What are the pros or cons of that method?

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  • Framebuffer Documentation...

    - by NoMoreZealots
    Is there any documentation on how to write software that uses the framebuffer device in Linux? I've seen a couple simple examples that basically say: "open it, mmap it, write pixels to mapped area." But no comprehensive documentation on how to use the different IOCTLS for it anything. I've seen references to "panning" and other capabilities but "googling it" gives way too many hits of useless information.

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  • Rails RJS template displays code instead of the html page

    - by Anand
    After having Googled and hurting my brain for hours on this, I finally decided to post this question. Here's the code... view1.html.erb -------------- <%=link_to_remote_redbox "Link", :url => {:action => :action1, :id => @some.id} some_controller.rb ------------------ def action1 render :layout => false end def action2 do some processing end action1.html.erb -------------------- <form onsubmit="new Ajax.Request('/some_controller/action2', {asynchronous:true, evalScripts:true, onComplete:function(request){RedBox.close(); return false;}, parameters:Form.serialize(this)}); return false;}" method="post" action="/some_controller/action2"> <input type=text name='username'> <input type='submit' value='submit'> </form> action2.rjs ----------- page.replace_html("some_div", (render(:partial => "some_partial"))) with that code in place when action2.rjs kicks in it should display the html page instead I am getting this Element.update("some_div", "<style type=\"text/css\">\n\n.............. As suggested on other posts I read, they say its caused because of the ":update = some_div" in the link_to_remote_redbox function but clearly my code doesn't have that. Help is always appreciated. Many Thanks

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  • RFC regarding WAM

    - by Noctis Skytower
    Request For Comment regarding Whitespace's Assembly Mnemonics What follows in a first generation attempt at creating mnemonics for a whitespace assembly language. STACK ===== push number copy copy number swap away away number MATH ==== add sub mul div mod HEAP ==== set get FLOW ==== part label call label goto label zero label less label back exit I/O === ochr oint ichr iint In the interest of making improvements to this small and simple instruction set, this is a second attempt. hold N Push the number onto the stack copy Duplicate the top item on the stack copy N Copy the nth item on the stack (given by the argument) onto the top of the stack swap Swap the top two items on the stack drop Discard the top item on the stack drop N Slide n items off the stack, keeping the top item add Addition sub Subtraction mul Multiplication div Integer Division mod Modulo save Store load Retrieve L: Mark a location in the program call L Call a subroutine goto L Jump unconditionally to a label if=0 L Jump to a label if the top of the stack is zero if<0 L Jump to a label if the top of the stack is negative return End a subroutine and transfer control back to the caller exit End the program print chr Output the character at the top of the stack print int Output the number at the top of the stack input chr Read a character and place it in the location given by the top of the stack input int Read a number and place it in the location given by the top of the stack What do you think of the following revised list for Whitespace's assembly instructions? I'm still thinking outside of the box somewhat and trying to come up with a better mnemonic set than last time. When the previous interpreter was written, it was completed over two contiguous, rushed evenings. This rewrite deserves significantly more time now that it is the summer. Of course, the next version of Whitespace (0.4) may have its instructions revised even more, but this is just a redesign of what originally was done in a very short amount of time. Hopefully, the instructions make more sense once someone new to programmings thinks about them.

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  • How to load a Bluetooth .apk file in Android G1 phone through Linux OS?

    - by Praween k
    Hi, I want to install a Bluetooth Application over my G1 device in linux environment.Please any Body provide me the procedure for this ? Whenever i am installing the application following error was thrown:- adb install /home/parveen/workspace/BluetoothChat/bin/BluetoothChat.apk 337 KB/s (28084 bytes in 0.081s) pkg: /data/local/tmp/BluetoothChat.apk Failure [INSTALL_FAILED_ALREADY_EXISTS]** Please help me out of this? Thanks in Advance Praween.

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  • Accessing WinMo6 GPS through Pocket IE

    - by TLB
    Hello, Does anyone know if it is possible to access the GPS on a Windows Mobile device through Pocked Internet Explorer, similar to how you do it on a blackberry and iphone (javascript)? If so, how do you do it? Thanks

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  • Html layout with <DIV> work on html editor but not on brownser

    - by DomingoSL
    Hello, i made this layout: <div id="todo" align="center" > <form method="post"> <div id="cabeza" style="width:850px;height:100px"> </div> <div id="contenido" style="width:420px;height:220px;background-image: url(IMG/cuadrologin.png); margin-top: 1px" > <div id="usuario" style="width:348px; height:35px; margin-top: 58px"> <input name="username" type="text" style="width: 250px; height: 30px;background-color: transparent;border: 0px solid #000000;font-size:x-large;color: #222; font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif; font-weight: bold;" size="299" /> </div> <div id="clave" style="width:348px; height:35px; margin-top: 22px"> <input name="clave" type="text" style="width: 250px; height: 30px;background-color: transparent;border: 0px solid #000000;font-size:x-large;color: #222; font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif; font-weight: bold;" size="299" /> </div> </div> </form> </div> And in my html editor looks just fine: But when i see it on the browser (Chrome & Firefox) looks like this: Im very new to layout with tag, any idea of what im making worng?

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