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• Three boolean values saved in one tinyint

  - by Casper

  Hello, probably a simple question but I seem to be suffering from programmer's block. :) I have three boolean values: A, B, and C. I would like to save the state combination as an unsigned tinyint (max 255) into a database and be able to derive the states from the saved integer. Even though there are only a limited number of combinations, I would like to avoid hard-coding each state combination to a specific value (something like if A=true and B=true has the value 1). I tried to assign values to the variables so (A=1, B=2, C=3) and then adding, but I can't differentiate between A and B being true from i.e. only C being true. I am stumped but pretty sure that it is possible. Thanks

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• How can find out the system default currency symbol on BlackBerry?

  - by ageektrapped

  I have a need to display a currency value in my application. There doesn't seem to be an easy way to do this with the RIM API, so I'm reduced to creating my own solution (a common refrain for BlackBerry development, unfortunately) Currently I'm using the Formatter class, from javax.microedition.locale like so protected String formatResult(double result) { try { Locale l = Locale.getDefaultForSystem(); Formatter formatter = new Formatter(l.toString()); return formatter.formatCurrency(result); } catch (UnsupportedLocaleException e) { return "This fails for the default locale because BlackBerry sucks"; } } I always hit the catch block in the simulator. Since this doesn't work by default on the simulator, I'm hesitant to put it in the application. So I have two questions: Can anyone tell me if the above solution is the way to go? And how to fix it, of course. Is there a way I can retrieve the currency symbol for the current locale programmatically so I can format myself?

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• Jquery/CSS help needed to make fallback for IE and older browsers

  - by matt_50

  Wondering if any of you can help me: I've made a signup modal that uses a CSS transform to switch between two methods of signing up. I've decided to try a 'card flip' type effect. Have a look at this JSfiddle in any browser that supports CSS 3D transforms - click the 'old fashioned way' text to 'flip' the modal (simplified for demo purposes): http://jsfiddle.net/voodoo6/cnTMz/8/ Then take a look in IE8/9 - as the 'back' is taller than the front and IE does;t support 'backface-visibility: hidden;' the reverse can be seen below the front. I've been trying to use JQuery and conditional CSS to 'display:none' the 'back' on load in IE (and older browsers), then add a 'display:block;' class to show it on click, problem is, I'm a JQuery beginner and have been struggling to get it to work! Not even sure if this is the best approach? Can anybody suggest an approach that would get this working in less-capable browsers? Thanks for any advice..

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• How to delay user login until RunOnce is completed? [Win XP]

  - by Shaitan00

  Currently I have an application that runs at startup when a user log's in to the account (administrative), as well as something under HKLM...\Run which is also executed - but I need to run something once and BEFORE both these things are executed. My solution was to use HKLM...\RunOnce which is executed before the HKLM...\Run but the task can take 30-45 seconds which gives enough time for the user Startup to be executed and launch the application prematurely. I thought of maybe including a SLEEP but RunOnce doesn't block the user account load... Then I considered the group policies but they do not have a RunOnce equivalent that I can use... Also I am not sure if Group Policy is run at the right time (never used it before). Is there anyway to make my RunOnce delay the account startup of my application, or a better place where I can execute it before both HKLM...\Run and user Startup? Or any recommended alternatives? Any ideas or help would be much appreciated... Thanks,

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• Is it possible to start an activity from a regular java class?

  - by Yotam

  In my ActionBarSherlock I have the same menu items for all activities, so it seems unwise to define onClick handlers in each activity - they all do the same. Instead I created a class called MyClickListener that implements com.actionbarsherlock.view.MenuItem.OnMenuItemClickListener, and in there I have a simple switch block that starts the appropriate activity. Problem is that Intent constructor's first argument is of type Context, and even when I pass this to MyClickListener's constructor, I can't start any activity. The same goes for every method that has a Context object as a parameter. Is there a way to work around it? What is a context object? Thanks

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• Centering images php

  - by peak

  I'm trying to center an image in php. I'm currently using this line of code echo '<img src="newimage.jpg" width="110" height="120" class="centre">'; However, this seems to have no effect. I've also tried using something like this, img.center { display: block; margin-left: auto; margin-right: auto; } <img src="newimage.jpg" alt="Suni" class="center" /> but this merely gives me a syntax error, how do I go about fixing this? Thanks

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• Nivo Slider thumbnails not displaying properly in IE

  - by ambrelasweb

  Making a new site but something is happening to it in IE. I've purchased the Nivo Slider for wordpress plugin and it working fine however it's not displaying the thumbnails under the banner in IE. This is what it looks like in firefox This is what it looks like in IE Because this is a plugin (and the website isn't giving me any support after 2 days) I dont really have the source CSS but I was hoping you could take a look at it with come developer tools to see why it might not be showing in IE? This is what I have found .theme-default .nivo-controlNav.nivo-thumbs-enabled img { display: block; height: auto; width: auto; } Any help or advice is appreciated.

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• RSpec: in-depth differences between before(:all) and before(:each)

  - by gmile

  Ok, so I've ran into a very strange issue, directly connected with before blocks. I'm doing a integration testing via Watir and RSpec. For a simple test to check if user can perform a login I'm creating a 'user' record in the db by means of factory_girl. So I put the following code: before(:each) do @user = Factory(:user) end if "should perform a login" do # do stuff end In do stuff I call a browser and see how the user tries to login. Unfortunately, somehow he cannot do that — "Username isn't valid". After some investigation I discovered that if I put the code for creating user in before(:all) block, everything magically works. How's that? What's the difference between :all and :each in this context? Also, If I put the code for creating user actually in the test body, it still doesn't work (i.e. user somehow isn't added to the DB or something).

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• How to create custom CSS "on the fly" based on account settings in a Django site?

  - by sdolan

  So I'm writing a Django based website that allows users select a color scheme through an administration interface. I already have middleware/context processors that links the current request (based on domain) to the account. My question is how to dynamically serve the CSS with the account's custom color scheme. I see two options: Add a CSS block to the base template that overrides the styles w/variables passed in through a context processors. Use a custom URL (e.g. "/static/dynamic/css//styles.css") that gets routed to a view that grabs all the necessary values and creates the css file. I'm content with either option, but was wondering if anyone else out there has dealt with similar problems and could give some insight as to "Best Practices".

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• Determining if an offset is in between line numbers?

  - by Sophomore

  hi I need to determine if a given selection is in between a start line and an end line. I have an ILineRange and a given offset within the viewport of eclipse. (I need to know, if the selection (from a remote party) was made within the current viewport of the local user. Unfortunately, I cannot get an LineRange from the selection. I must rely on getOffset() and getLength()... Anyone has an idea? I think there is not a clean solution for this, as the offset (or the characters per line vary (new line lines or a big block of comment).

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• CSS Sliding Underline does not work in Safari?

  - by ghilton

  I have created a navigation menu which has a 'sliding underline' effect for each hyperlink. JS Fiddle: http://jsfiddle.net/ZZuQR/12/ RELEVANT CODE: /* sliding underline */ nav li a:after { content: " "; display:block; margin: 5px 0px 0px 0px; border-bottom: 3px solid transparent; width: 0px; transition: 0.5s ease; } nav li a:hover:after { border-bottom: 3px solid #0076a3; width:50px; } This solution works in Chrome but not in Safari. Does anyone know why this might be?

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• does webapp has 'elseif' or 'elif' in template tags..

  - by zjm1126

  my code is : Hello!~~~ {% if user %} <p>Logged in as {{ user.first_name }} {{ user.last_name }}.</p> {% elif openid_user%} <p>Hello, {{openid_user.nickname}}! Do you want to <a href="{{openid_logout_url}}">Log out?</p> {% else %} <p><a href="/login?redirect={{ current_url }}">google Log in</a>.</p> <p><a href="/twitter">twitter Log in</a>.</p> <p><a href="/facebook">facebook Log in</a>.</p> <p><a href="{{openid_login_url}}">openid Log in</a>.</p> <iframe src="/_openid/login?continue=/"></iframe> {% endif %} the error is : TemplateSyntaxError: Invalid block tag: 'elif' does not webapp has a 'else if ' ? thanks

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• Memory allocation in Linux

  - by Goofy

  Hello! I have a multi threaded application where I allocate buffers with data, which then wait in queues to be send via sockets. All buffers are reproducible because I use only buffers of fixed size in whole program (1024, 2048, 2080 and 5248 bytes). I noticed, that my program usually use up to 10 buffers of each length type at the same moment. So far I always manually allocate new buffer and then free it (using malloc() and free ()) where it's not needed any more. I started wondering if Linux is enough smart to cache this memory for me, so next time I allocate new buffer system only quickly receive a buffer I have already used before and not perform heavy operation of allocating new memory block?

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• lexers / parsers for (un) structured text documents

  - by wilson32

  There are lots of parsers and lexers for scripts (i.e. structured computer languages). But I'm looking for one which can break a (almost) non-structured text document into larger sections e.g. chapters, paragraphs, etc. It's relatively easy for a person to identify them: where the Table of Contents, acknowledgements, or where the main body starts and it is possible to build rule based systems to identify some of these (such as paragraphs). I don't expect it to be perfect, but does any one know of such a broad 'block based' lexer / parser? Or could you point me in the direction of literature which may help?

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• Dynamically generate Triangle Lists for a Complex 3D Mesh

  - by Vulcan Eager

  In my application, I have the shape and dimensions of a complex 3D solid (say a Cylinder Block) taken from user input. I need to construct vertex and index buffers for it. Since the dimensions are taken from user input, I cannot user Blender or 3D Max to manually create my model. What is the textbook method to dynamically generate such a mesh? Edit: I am looking for something that will generate the triangles given the vertices, edges and holes. Something like TetGen. As for TetGen itself, I have no way of excluding the triangles which fall on the interior of the solid/mesh.

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• Application_EndRequest Dosent Fire on a 404

  - by Shane

  I am using ASP MVC 2 and Nhibernate. I have created an HTTP Module as demonstrated in Summer of NHibernate 13 that looks like so: public void Init(HttpApplication context) { context.PreRequestHandlerExecute += new EventHandler(Application_BeginRequest); context.PostRequestHandlerExecute += new EventHandler(Application_EndRequest); } private void Application_BeginRequest(object sender, EventArgs e) { ISession session = StaticSessionManager.OpenSession(); session.BeginTransaction(); CurrentSessionContext.Bind(session); } private void Application_EndRequest(object sender, EventArgs e) { ISession session = CurrentSessionContext.Unbind(StaticSessionManager.SessionFactory); if (session != null) try { session.Transaction.Commit(); } catch (Exception) { session.Transaction.Rollback(); } finally { session.Flush(); session.Close(); } } web.config <add name="UnitOfWork" type="HttpModules.UnitOfWork"/> My problem is that Application_EndRequest never gets called on a 404 error so if my view does not render I completely block database access until my flush takes place. I am fairly new to NHibernate so I am not sure if I am missing something.

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• reStructuredText for SQL?

  - by Chris

  I am trying to use DocUtils and reStructuredText to comment SQL code. I can get this to work when I include the markup inside multi-line comments. I then use --Some text:: to introduce each block of code. I cannot get internal hyperlinks to work. I would like to write -- .. Step1_: but the parser ignores this because of the leading comment. Using a multi-line style also fails. Is there a way to get this to work? Here's an example: /* ========== this query ========== :Author: Me Outline ========== - Create table 1 - Create table 2 - Output the result */ -- _Step1: build the table:: create table table1 -- _Step2: use Step1_ to build table 2:: create table table2

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• Rails - How to connect Helper to Controller Module

  - by red eye

  I have helper: module BreadcrumbsHelper def breadcrumbs_cache_wrap(key, options, &block) ... end end And i extract part of Controller to module: module ApplicationController::Breadcrumbs def default_breadcrumbs ... end class ApplicationController include ApplicationController::Breadcrumbs ... end Now i want to connect Helper to Controller. I can do it like this: class ApplicationController include ApplicationController::Breadcrumbs helper :breadcrumbs ... end It's working. But can i incapsulate connection to Breadcrumbs Module? module ApplicationController::Breadcrumbs helper :breadcrumbs ... end Unfortunately this code is not working "undefined method `helper'".

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• Does it mean JVM Suspended?

  - by Joe.wang

  When my application run . I got a message says : Ping: Timed out waiting for signal from JVM. The JVM was launched with debug options so this may be because the JVM is currently suspended by a debugger. Any future timeouts during this JVM invocation will be silently ignored. What does that mean? It seems it will block any web request from outside? because when I upload a file to it, it failed. help me .

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• Javascript in CakePHP

  - by user445803

  Hello, I had one page in Views in CakePHP, it have normal javascript block, Just inserted: <script language="JavaScript" type="text/javascript"> ---code--- </script> Inside page, and it was all working okay... But now... It doesn't show... How can I change configuration or something to enable showing javascript blocks without CakePHP commands. Javascript needs data from that page so I can't use outer file, and it's too long to use $javascript-codeBlock Is there any way to reconfigure stupid CakePHP to start showing those blocks? Some files are showing javascript, and it's working all okay, but some of them won't show... Please help...

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• problem with the drop down menu with jquery

  - by amir

  Hi Basically I have some links which include some other links, I'm trying to show the parent links only and when one clicks on the parent link the child links should appear and when one clicks on the parent link again the child link should disappear, the code works for the first click and it opens the relevant child links but how do I make them disappear when I click on the parent link again, thanks for the help. jQuery.noConflict(); jQuery(document).ready(function(e) { jQuery('.nav-container ul.level0 li.level1 a').click(function(e) { e.preventDefault(); jQuery(this).css({'background':'#000000','color':'#ffffff'}); jQuery('.nav-container ul.level0 li.level2 a').css('display','block'); }); });

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• Java - Confused by the one class per file rule

  - by Mark

  The one class per file rule in Java has me a bit confused. I writing an Android app and trying to implement the accepted answer to this question: Common class for AsyncTask in Android? which calls for an interface definition which class A implements and class B accepts as an argument to its constructor. So I need an A.java and a B.java, but where does the interface go? Does it need a separate java file itself? Do I have to define it inside both A and B? If not how to import it? Also I will have about 10 different AsyncTask classes, but I don't want to bother creating a new file for each one. What would you recommend? Is there a way to put all 10 classes in one file? Or should I create a big if/then block inside the class and pass an argument telling it which of the 10 different tasks I want it to do?

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• Why doesn't BlackBerry let me click on this link?

  - by Steve N

  This is a link in an HTML email.. Other links in this email work, but this one does not get recognized in a BlackBerry as a link, so you can't click on it. Does anyone know why that might be? Here's the markup for it: <a title="Continue" style="display: block; width:200px; border:1px solid #336699; text-align: center; padding-top:5px; padding-bottom:5px; font-size:14px; font-family: Arial, Sans-Serif; color:#336699; font-weight:bold; text-decoration: none;" href="https://www.mydomain.com/mypage.aspx?id=8430650">Continue ››</a>

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• How to get an image onmouseover

  - by udaya

  Hi I am using an image by default But i need the image only when i am doing my mouse over option This is the div In which Ihave the image <div style="float:left; height:90px; width:90px; background-color:#CCCC99" style="display:block" onmouseover="return mouseOver();" > <img src=<?=base_url()?>images/m11on.gif name=b1 width=90 height=80 border=0 onmouseover=mouseOver() onmouseout=mouseOut()></div> On mouse out my div must be empty This is the javascript function i am using but it doesnt seems to work properly

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• How do I stop a jquery animation based on CSS values?

  - by kevn

  So, I have two divs: #div1 and #div2. I want '#div2' to disappear when '#div1' has the CSS value: top = 0px. Here is the CSS: #div1 { top: 0px; } #div2 { display: block; } if ( $('#div1').css('top') == '0px' ) { $("#div2").hide(); } else { $("div2").fadeIn(); } $("div2").click(function(){ $("#div1").animate({top:"+=315px"}, "slow"); }); The problem I am running into is that I'm changing that CSS value (for #div1) via Javascript and for this reason, my js doesn't acknowledge the change and doesn't make the div disappear (I think). Is there any way to make #div2 disappear when #div1's CSS property top = 0 and reappear whenever it is changed? Or is there a better way to implement this?

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