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• Why isn't my javascript working on a local HTML file using UIWebView loadRequest:?

  - by Raphael

  Hi Everyone, I have a script that generates a temporary HTML file that has links to external Javascript files that it requires to run. <script src="file:///Users/raphaeldefranco/Library/Application Support/iPhone Simulator/User/Applications/BA9E724E-76BD-4F28-B224-54B4C73786D6/LogTen.app/Reports/Time by Year/../../Tools/PlotKit/Base.js" type="text/javascript"></script> The links are absolute and they are to the right place (There is a CSS link as well that uses the same method and it works fine). I've been using the following, which finds images and CSS just fine but for some reason won't run the .js. [webView loadRequest:requestObj]; I've tried changing the encoding of the files. I had a problem getting the CSS to work until the file was in unicode, but so far no luck. All the Script files are bundled with my project etc. Thanks in advance!

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• how to open Gmail View Message Activity?

  - by NickLai

  I want to write an application to List the Gmail message. In the list, if user click one of the message item, it shall link ot Gmail App to see more detial information. Currently I can read the Gmail db with Gmail.java. There are some problems while I want to open Gmail Activity. In general, we can open Activity with Action and parameters. But Gmail App has not release code base. We do not know what Action set to Gmail Activity and what parmeter shall we put the extras. I only know that the Activity of View detial Message is named "HtmlConversationActivity." And the Package is under "com.google.android.gm." please tell me how to open the View detial Message Activity in Gmail APP. thanks a lot.

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• C++ operator overloading doubt

  - by avd

  I have a code base, in which for Matrix class, these two definitions are there for () operator: template <class T> T& Matrix<T>::operator() (unsigned row, unsigned col) { ...... } template <class T> T Matrix<T>::operator() (unsigned row, unsigned col) const { ...... } One thing I understand is that the second one does not return the reference but what does const mean in the second declaration. Also which function is called when I do say mat(i,j)

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• Rails 3 Nested Forms

  - by Mike

  I have a Person model and an Address Model: class Person < ActiveRecord::Base has_one :address accepts_nested_attributes_for :address end class Address < ActiveRecord::Base belongs_to :person end In my people controller I have @person.build_address in my new action. My forms builds correctly. The problem is that when I submit the form, a person record and an address record is created but they aren't linked via the address_id column in the Person table. Am I missing a step in the controller? Thanks! New Action UPDATE def new @person = Person.new @person.build_address respond_to do |format| format.html # new.html.erb format.xml { render :xml => @person } end end Form Code UPDATE <%= form_for(@person) do |f| %> <% if @person.errors.any? %> <div id="error_explanation"> <h2><%= pluralize(@person.errors.count, "error") %> prohibited this person from being saved:</h2> <ul> <% @person.errors.full_messages.each do |msg| %> <li><%= msg %></li> <% end %> </ul> </div> <% end %> <div class="field"> <%= f.label :first_name %><br /> <%= f.text_field :first_name %> </div> <div class="field"> <%= f.label :last_name %><br /> <%= f.text_field :last_name %> </div> <div class="field"> <%= f.label :email %><br /> <%= f.text_field :email %> </div> <div class="field"> <%= f.label :telephone %><br /> <%= f.text_field :telephone %> </div> <div class="field"> <%= f.label :mobile_phone %><br /> <%= f.text_field :mobile_phone %> </div> <div class="field"> <%= f.label :date_of_birth %><br /> <%= f.date_select :date_of_birth %> </div> <div class="field"> <%= f.label :gender %><br /> <%= f.select(:gender, Person::GENDER_TYPES) %> </div> <div class="field"> <%= f.label :notes %><br /> <%= f.text_area :notes %> </div> <div class="field"> <%= f.label :person_type %><br /> <%= f.select(:person_type, Person::PERSON_TYPES) %> </div> <%= f.fields_for :address do |address_fields| %> <div class="field"> <%= address_fields.label :street_1 %><br /> <%= address_fields.text_field :street_1 %> </div> <div class="field"> <%= address_fields.label :street_2 %><br /> <%= address_fields.text_field :street_2 %> </div> <div class="field"> <%= address_fields.label :city %><br /> <%= address_fields.text_field :city %> </div> <div class="field"> <%= address_fields.label :state %><br /> <%= address_fields.select(:state, Address::STATES) %> </div> <div class="field"> <%= address_fields.label :zip_code %><br /> <%= address_fields.text_field :zip_code %> </div> <% end %> <div class="actions"> <%= f.submit %> </div> <% end %>

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• BlackBerry responseXML is null

  - by Andrew

  I'm trying to port a portion of AJAX code I wrote over to the BlackBerry application's embedded browser. Our base build is 4.6.1 and the RIM documentation claims that XMLHttpRequest's responseXML is available starting with this version. And when I request an XML file from my local server, I get back the responseText (so I know the request is working), but the responseXML is always null. I've made sure the HTTP "Content-Type" header is set to "text/xml" and I am getting the correct data loaded in a web browser. It's just nulling out in the BB web environment. Does anyone know what might be happening? A backup of using the responseText and piping it through DOMParser is not possible because that object was not added to the BB browser until 4.7.1. So I'm not sure what fallback I have.

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• build.xml in ant

  - by Codenotguru

  > Can anybody help me know what these tags do in build.xml file? > > 1)<property file="" location="."/> > 2)<property environment=""/> > 3)<property name="" value=""/> 4)<path > id="classpath.base"> 5)<pathelement > location="$some.jar"/> 6)<path > id="classpath.build"> 7)<path > id="classpath.test"> > 8)<target></target> > > Thank You

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• Linq to Sql query reuse

  - by UserControl

  Let's say we have a view V1 and V2 that is declared like: create view V2 as select V1.*, V2.C1, V2.C2, V2.C3 from V1 join V2 on V1.Key = V2.Key where bla-bla So V2 narrows down the result set of V1 and adds some joins. And there is a retrieval routine in C# IEnumerable<V1> GetData(MyFilter filter, MySortOrder order) {} I want to reuse with V2. Is it possible without performing joins in L2S rather than in database? Should i manually create a base class in the database context or something?

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• Cocoa Interface Builder object initialization

  - by Stanley

  Base on the documentation and sample code that I have gone through, I got an impression that when a class defined in xcode is read into and configured in Interface Builder, an object based on the class is effectively created and stored in an xib or nib file. So the object is ready to be used when the corresponding application is launched. Alternatively, for classes that have not been handled by Interface Builder, code such as the "new" statements have to be written in xcode explicitly in order for the associated objects to be created and used. It will be very nice to have people who are more knowledgable than me to confirm or to correct my very naive understanding of Interface Builder ...

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• What notes should I be taking, if any, at the beginning of a project?

  - by Justin R.

  I was recently asked by a Team Leader (not mine) if I would be willing to undertake a programming project. The members of his team are currently pre-occupied with other more important projects. I graduated college two years ago, and up until now programming has only been a hobby of mine. Recently I decided that I would like to pursue a career in software development. I accepted his offer so that I can gain some real-world experience and start building a portfolio. In about an hour I'm scheduled to meet with the Team Leader to discuss the details of what he needs. From a short e-mail exchange with him, I know that the base project is to update an existing ASP.NET form—but I also think there's more to it than that. Considering that I'd like to eventually put this project in a portfolio, what kinds of notes should I take at the meeting?

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• DrawImage in XP Mode or Remote Desktop

  - by simplecoder

  I'm displaying a PNG with a transparent background that looks good in Windows 7, but then I run my app in XP Mode or remote desktop to a Windows XP machine and the PNG looks incorrect. I noticed that if I disable "Integration Mode" or run the app on XP without remote desktop, the image looks fine. How do I get DrawImage to render the PNG correctly in XP Mode or remote desktop? Image inside Windows 7 Image inside XP Mode or remote desktop Here's my code: protected override void OnPaint(PaintEventArgs e) { Image image = Image.FromFile("hello.png", false); Bitmap bmp = new Bitmap(image); Rectangle destRect = new Rectangle(0, 0, image.Width, image.Height); e.Graphics.DrawImage(image, destRect, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel); base.OnPaint(e); }

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• How to make whole textarea readable on using link..using jquery

  - by rockers

  I have this code in my view.. <span class="bold">Comment: <%=Html.TextAreaFor(model => model.Comment, new { })%> </span> The comment Field is populating from data base.. the comment is too large text...they are not able to see the entire text on the textarea bec due fixed lengh of the text.. they were asking me to keep the Link beside the Comment Label.. once they click the link they need to see the Entire text what apperas in the textarea in popup bubble? is this possible using jquery? please anybody help me out? thanks

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• Rails - Why is my custom validation being triggered for only a build command.

  - by adam

  I have a sentence and correction model with a has_one and belongs_to relationship respectively. For some reason when I do def create @sentence = Sentence.find(params[:sentence_id]) @correction = @sentence.build_correction(params[:correction]) a custom validation I wrote for Correction is being called at the build_correction point. the validation is below class Correction < ActiveRecord::Base attr_accessible :text, :sentence_id, :user_id belongs_to :sentence belongs_to :user validate :correction_is_different_than_sentence def correction_is_different_than_sentence errors.add(:text, "can't be the same as the original sentence.") if (text == self.sentence.text) end the problem is for some reason on validation the correction object doesn't have the sentence id set (despite I used the build_correction method) and so it complains "you have nil object .... while executing nil.text" in the if clause in the validation above. So my question is why is the validation occuring for a build command, i thought it only triggers on a create or update. And why isnt the sentence_id getting set?

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• Include a Class in another model / class / lib

  - by jaycode

  I need to use function "image_path" in my lib class. I tried this (and couple of other variations): class CustomHelpers::Base include ActionView::Helpers::AssetTagHelper def self.image_url(source) abs_path = image_path(source) unless abs_path =~ /^http/ abs_path = "#{request.protocol}#{request.host_with_port}#{abs_path}" end abs_path end end But it didn't work. Am I doing it right? Another question is, how do I find the right class to include? For example if I look at this module: http://api.rubyonrails.org/classes/ActionView/Helpers/AssetTagHelper.html is there a rule of thumb how to include that module in a model / library / class / anything else ?

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• How should I build a simple database package for my python application?

  - by Carson Myers

  I'm building a database library for my application using sqlite3 as the base. I want to structure it like so: db/ __init__.py users.py blah.py etc.py So I would do this in Python: import db db.users.create('username', 'password') I'm suffering analysis paralysis (oh no!) about how to handle the database connection. I don't really want to use classes in these modules, it doesn't really seem appropriate to be able to create a bunch of "users" objects that can all manipulate the same database in the same ways -- so inheriting a connection is a no-go. Should I have one global connection to the database that all the modules use, and then put this in each module: #users.py from db_stuff import connection Or should I create a new connection for each module and keep that alive? Or should I create a new connection for every transaction? How are these database connections supposed to be used? The same goes for cursor objects: Do I create a new cursor for each transaction? Create just one for each database connection?

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• Drupal OAuth Service Module

  - by user470714

  I am trying to do some research into potentially setting up an existing Drupal site with user accounts/login page to also be an OAuth service provider, basically authenticating users to make calls with a web service. I am looking for a Drupal module which will give this functionality. Most of what I run into are OAuth consumer modules, which is not what I want in this case. I've found a few modules which I think might do this for me, but the module descriptions are generally pretty vague and don't have much of a user base which doesn't inspire much confidence. Has anyone else done this before? What are the best modules available for doing this?

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• how to display selected value in drop down list in asp.net mvc?

  - by Renu123

  i want to display selected value in drop down list . the value comes from the data base. for ex suppose we want to update user profile then value for gender which is previously provided by the user should get displayed as selected value. the code that i used to display is <% string val = Convert.ToString(Model.gender); ViewData["gen"] = val; %> <%= Html.DropDownList("genderList", ViewData["gen"] as SelectList) %> but its not showing the value from the database.but viewdata get value from database but it is not showing on drop down list. thanks in advance.

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• how to convert numbers to alpha numeric system with php

  - by Patrick

  Im not sure what this is called, which is why im having trouble searching for it. What im looking to do, is take numbers, and convert them to some alpha numeric base so that the number say 5000, wouldnt read 5000, but like G4u or something like that. The idea being to save space and also not make it obvious how many records there are in a given system. Im using php, so if there is something like this built into php even better, but even a name for this method would be helpful at this point Again, sorry for not being able to be more clear, im just not sure what this is called.

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• Formula for Live Video Streaming Bitrate

  - by MD

  I am simply looking for the formula that should be used here. All the results I've found base "finding the bitrate" off of already existing video. I'm talking about LIVE streaming. (indeterminate length) So, I know some basic parts of it, but I just need to know if I'm right or missing anything. For Kbps: Resolution * Framerate / 1024 Is it really that simple? Audio would be a separate element for our purposes here. Am I missing anything from this formula? (Coming up with a proposal of what amount of bandwidth would be required, relative to possible resolution options, so I just need to be sure that I'm not missing anything or inaccurate about it)

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• the best way to make codeigniter website multi-language. calling from lang arrays depends on lang se

  - by artmania

  Hi friends, I'm researching hours and hours, but I could not find any clear, efficient way to make it :/ I have a codeigniter base website in English and I have to add a Polish language now. What is the best way to make my site in 2 language depending visitor selection? is there any way to create array files for each language and call them in view files depends on Session from lang selection? I don't wanna use database. Appreciate helps! I'm running out of deadline :/ thanks!!

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• When is C++ covariance the best solution?

  - by Neil Butterworth

  This question was asked here a few hours ago and made me realise that I have never actually used covariant return types in my own code. For those not sure what covariance is, it's allowing the return type of (typically) virtual functions to differ provided the types are part of the same inheritance hierarchy. For example: struct A { virtual ~A(); virtual A * f(); ... }; struct B : public A { virtual B * f(); ... }; The different return types of the two f() functions are said to be covariant. Older versions of C++ required the return types to be the same, so B would have to look like: struct B : public A { virtual A * f(); ... }; So, my question: Does anyone have a real-world example where covariant return types of virtual functions are required, or produce a superior solution to simply returning a base pointer or reference?

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• Ruby on Rails Increment Counter in Model

  - by febs

  I'm attempting to increment a counter in my User table from another model. class Count < ActiveRecord::Base belongs_to :user after_create :update_count def update_count user = User.find(self.user_id) user.increment(:count) end end So when count is created the goal would be to increment a counter column for that user. Currently it refuses to get the user after creation and I get a nil error. I'm using devise for my Users Is this the right (best practice) place to do it? I had it working in the controllers, but wanted to clean it up. I'm very inexperienced with Model callbacks.

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• Active Record Associations: has_one :through? Or multiple has_one's?

  - by jmccartie

  I'm brand new to Rails, so bear with me. I have 3 models: User, Section, and Tick. Each section is created by a user. My guess with this association: class Section < ActiveRecord::Base has_one :user end Next, each user can "tick" off a section -- only once. So for each tick, I have a section_id, user_id, and timestamps. Here's where I'm stuck. Does this call for a "has_one :through" association? If so, which direction? If not, then I'm way off. Which association works here? Thanks!

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• How to properly set path to media files in Django

  - by sasquatch90

  Hello. I've got a new project, and currently I'm trying to set it correctly. But somehow I can't make my media files work. Here's my current setting : MEDIA_ROOT = os.path.normpath( '/home/budzyk/rails/fandrive/site_media/' ) templates setting work on the other hand : TEMPLATE_DIRS = ( "/home/budzyk/rails/fandrive/templates", ) Catalog with media files is ../fandrive/site-media/ so why it's not working ? Here's my base.html template with styles imported, and firebug window when my page is loaded : <head> <title>{% block title %}{% endblock %}</title> <meta http-equiv="Content-type" content="text/html;charset=UTF-8" /> <link rel="stylesheet" type="text/css" href="{{ MEDIA_URL }}css/style.css" /> {% block pagecss %}{% endblock %} <script type="text/javascript" src="{{ MEDIA_URL }}jquery/jquery-1.4.2.min.js"></script> </head> <body> <div id="wrapper"> http://img237.imageshack.us/img237/4909/21205809.jpg

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• Performance Impact of Generating 100's of Dynamic Methods in Ruby?

  - by viatropos

  What are the performance issues associated with generating 100's of dynamic methods in Ruby? I've been interested in using the Ruby Preferences Gem and noticed that it generates a bunch of helper methods for each preference you set. For instance: class User < ActiveRecord::Base preference :hot_salsa end ...generates something like: user.prefers_hot_salsa? # => false user.prefers_hot_salsa # => false If there are 100's of preferences like this, how does this impact the application? I assume it's not really a big deal but I'm just wondering, theoretically.

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• WebUIView is very slow

  - by Shamil

  Hello, I'm building a custom RSS reader app with incorporated feed link view (UIWebView). Using the following code, when the view, containing WebUIView is loaded, it takes about 6 seconds before anything is outputted to the user: -(void)viewDidLoad{ [super viewDidLoad]; NSString *urlString = [[[self appDelegate] currentlySelectedBlogItem]linkUrl]; NSURL *url = [NSURL URLWithString:urlString]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [_webview loadRequest:requestObj]; [_webview setScalesPageToFit:YES]; } Any ideas why UIWebView is being so slow? I've checked the URL input, it's clean and what I'd expect it to be. I'm building for iOS 3.0 as base deployment target.

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