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  • Ruby on Rails - f.error_messages not showing up

    - by Brian Roisentul
    Hi, I've read many posts about this issue but I never got this to work. My model looks like this: class Announcement < ActiveRecord::Base validates_presence_of :title, :description end My controller's create method(only its relevant part) looks like this: def create respond_to do |format| if @announcement.save flash[:notice] = 'Announcement was successfully created.' format.html { redirect_to(@announcement) } format.xml { render :xml => @announcement, :status => :created, :location => @announcement } else @announcement = Announcement.new @provinces = Province.all @types = AnnouncementType.all @categories = Tag.find_by_sql 'select * from tags where parent_id=0 order by name asc' @subcategories= '' format.html { render :action => "new" } #new_announcement_path format.xml { render :xml => @announcement.errors, :status => :unprocessable_entity } end end end My form looks like this: <% form_for(@announcement) do |f| %> <%= error_messages_for 'announcement' %> <!--I've also treid f.error_messages--> ... What am I doing wrong?

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  • codeigniter form validation if failed send user back

    - by Momen M El Zalabany
    i have this controller(visits.php) that use 3 models to build page, then it pass 4 vars to a view. this view contain a form that submit to another page (add_user.php) my question is how can i send the user back to visits.php in case the for_validation is false ? do i have to reload visits.php allover again ?-waste of resourss- or i should just send him back in history with js or php header for example ? can u plz show me an example of how u best handle false result of form_validation ? Note that when i user header('Location: ' . $_SERVER['HTTP_REFERER']); i couldnt echo validation_error() :( thanks for help

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  • Pylons and Facebook

    - by Nayan Jain
    The following is my oauth template top.location.href='https://graph.facebook.com/oauth/authorize?client_id=${config['facebook.appid']}&redirect_uri=${config['facebook.callbackurl']}&display=page&scope=publish_stream'; Click here to authorize this application When I hit the page I am prompted to login (desired), upon login I am redirected in a loop between a permissions page and an app page. My controller looks like: class RootController(BaseController): def __before__(self): tmpl_context.user = None if request.params.has_key('session'): access_token = simplejson.loads(request.params['session'])['access_token'] graph = facebook.GraphAPI(access_token) tmpl_context.user = graph.get_object("me") def index(self): if not tmpl_context.user: return render('/oauth_redirect.mako') return render('/index.mako') I'm guessing my settings are off somewhere, probably with the callback. Not to sure if it is an issue with my code or the python sdk for facebook.

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  • How do I do multipled level routes best in MVC

    - by Lilja
    I have a site where I would like an URL like: /Some maincategory name/{id}/Some subcategory name/{id}/Some item name/{id} I include the IDs of each level since the name is not unique. This is doable but I have to create a new routing for each level. My Html.ActionLink also looks nasty. Each level has it's own controller since the levels are completely different. The URLs could be something like this: _/Birds/2/Waders/4/Flamingos/23_ _/Mammals/5/Dogs/23/Longeared/25/Somedog/76_ _/Insects/7/Spiders_ This is just an example and not what I'm going to use. My applications has nothing to do with animals. Is there a good way of doing this or should I use the standard routing instead?

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  • How do I initialize attributes when I instantiate objects in Rails?

    - by nfm
    Clients have many Invoices. Invoices have a number attribute that I want to initialize by incrementing the client's previous invoice number. For example: @client = Client.find(1) @client.last_invoice_number > 14 @invoice = @client.invoices.build @invoice.number > 15 I want to get this functionality into my Invoice model, but I'm not sure how to. Here's what I'm imagining the code to be like: class Invoice < ActiveRecord::Base ... def initialize(attributes = {}) client = Client.find(attributes[:client_id]) attributes[:number] = client.last_invoice_number + 1 client.update_attributes(:last_invoice_number => client.last_invoice_number + 1) end end However, attributes[:client_id] isn't set when I call @client.invoices.build. How and when is the invoice's client_id initialized, and when can I use it to initialize the invoice's number? Can I get this logic into the model, or will I have to put it in the controller?

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  • Rails - Cant get http_accept_language gem to work in my rails project

    - by adam
    I'm internationalizing my app and I've installed the http_accept_language gem on my system I've placed config.gem 'http_accept_language' into my environment.rb file but every time I try to run this code in my controller request.user_preferred_languages it complains of no method error. There are no other instructions on the readme on github... am I missing something? EDIT - Problem solved. after a good nights sleep I came back and realised I hadnt restarted the server. I hate it when that happens.

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  • Mixing Transaction Script pattern with DDD/CQRS

    - by Herman
    Hi all, Here is the situation, in order to support our legacy system, we need to insert to a table whenever a user logs in. This is basically an CRUD operation, so it doesn't really make sense to create repository/entity/command/event for this since this doesn't tie to any business rules at all. The only benefit to create a CQRS command is that this database write can happen asynchronously under that model. Which is a better route to take? Use CQRS, and then call a stored proc. when handling that command? Just call database directly in the controller (I am using asp.net mvc)

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  • How small is *too small* for an opensource project?

    - by Adam Lewis
    I have a fair number of smaller projects / libraries that I have been using over the past 2 years. I am thinking about moving them to Google Code to make it easier to share with co-workers and easier to import them into new projects on my own environments. The are things like a simple FSMs, CAN (Controller Area Network) drivers, and GPIB drivers. Most of them are small (less than 500 lines), so it makes me wonder are these types of things too small for a stand alone open-source project? Note that I would like to make it opensource because it does not give me, or my company, any real advantage.

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  • YII Mail Generate unwanted ascii character in HTML mail

    - by CedSha
    I use YII-Mail just by copying the sample but I always get some ascii charcters in my generated links Where they come from and how to avoid them ? $message = new YiiMailMessage; $message->view = 'mail'; $message->setBody(array('model'=>$model), 'text/html'); $message->subject = Yii::t('tr','my subject'); $message->addTo('[email protected]'); $message->from = '[email protected]'; Yii::app()->mail->send($message); and in view file 'mail' <h1><?php echo(Yii::t('tr','This is HTML mail')); ?></h1> <?php echo CHtml::link('Mylink', array('controller/view', 'id'=>$model->id)); ?> The resulted email source looks like this <h1>This is HTML mail</h1> <a href=3D"/testdrive/index.php?r=3D ....

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  • Form to sort an index in rails

    - by shmichael
    I'm a newcomer to Rails. I want to build a simple form that determines the sort order of a list. I've implemented a form in the likes of - <%= radio_button_tag :sort, "rating" %> <%= label_tag :sort_rating, "order by rating" %> <%= radio_button_tag :sort, "name" %> <%= label_tag :sort_name, "order by name" %> And now I am unsure how to implement the sort at the controller/model level. The aspects I am puzzled about are: Where should the sort be performed How could the sort parameter be persisted How could the code be reused Right now, I can't even get the selected sort method to remain selected after a submit. I would most appreciate any guidance or reference to an example.

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  • acts_as_taggable_on and auto_complete returning no results

    - by Sean Johnson
    I'm using acts_as_taggable_on in a model, and am trying to implement the auto_complete plugin. It seems as though I have everything hooked up correctly, but the search isn't returning any results. Here's what I have so far: In the view: <%= text_field_with_auto_complete(:link, :tag_list, {}, {:tokens => ','}) %> In the controller: def auto_complete_for_link_tag_list @tags = Link.tag_counts_on(:tags).where('tags.name LIKE ?', params[:link][:tag_list]) render :inline => "<%= auto_complete_result(@tags, 'name') %>", :layout => false logger.info "#{@tags.size} tags found." end The logger keeps returning 0 tags, and nothing shows up in the view (yeah, the layout includes the javascript defaults). Any thoughts or advice would be awesome.

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  • Preventing EF4 ConstraintException when invoking TryUpdateModel

    - by twk
    Given following ASP.NET MVC controller code: [HttpPost] public ActionResult Create(FormCollection collection) { string[] whitelist = new []{ "CompanyName", "Address1", "Address2", ... }; Partner newPartner = new Partner(); if (TryUpdateModel(newPartner, whitelist, collection)) { var db = new mainEntities(); db.Partners.AddObject(newPartner); db.SaveChanges(); return RedirectToAction("Details/" + newPartner.ID); } else { return View(); } } The problem is with the Entity Framework 4: the example Partner entity is mapped to a database table with it's fields NOT ALLOWED to be NULL (which is ok by design - they're required). Unfortunately, invoking TryUpdateModel when some of the properties are nulls produces ConstraintException which is not expected! I do expect that TryUpdateModel return false in this case. It is ok that EF wouldn't allow set a property value to null if it should not be, but the TryUpdateMethod should handle that, and add the error to ModelState errors collection. I am wrong, or somebody screwed the implementation of TryUpdateModel method?

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  • What is an example of MVC in PHP?

    - by waiwai933
    I'm trying to understand the MVC pattern. Here's what I think MV is: Model: <?php if($a == 2){ $variable = 'two'; } else{ $variable = 'not two'; } $this->output->addContent($variable); $this->output->displayContent(); ?> View: <?php class output{ private $content; public function addContent($var){ $this->content = 'The variable is '.$var; } public function displayContent(){ include 'header.php'; echo $content; include 'footer.php'; } } ?> Is this right? If so, what is the controller?

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  • Iterating 'Active' View Controllers

    - by ISDi
    Ola Folks, In an iPhone application I am displaying different views by using the addSubView:SomeViewController.view method. I want to be able to, at the very least, log the view controllers that are in the view hierarchy that is being displayed. I would prefer to be able to get a handle to a specific view controller. I know how to iterate the views, I just do not see how to access the view controllers of those views. I am looking for something that will give me the type of access to the view controllers that UINavigationController::ViewControllers does. I thought I could get away with: for (UIViewController* oVC in [self.view subviews]) but this is not having the intended effect. If someone has a way of doing this, please share it with me. -isdi-

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  • Ruby on Rails: link_to_remote and rel

    - by DerNalia
    I want a link to remote to have a rel tag, because I want to use facebox with it. I had it working with a regular link to... but I needed the link to remote to handle the event that a user doesn't have javascript enabled. this, currently does't work (except for the non-javascript part ) <%= link_to_remote "Ask a Question", {:url => {:action => :ask_question, :id => @container.id.to_s, :javascript_disabled => false }, :rel => 'facebox'}, :href => url_for( :controller => :view, :action => :ask_question, :id => @container.id.to_s, :javascript_disabled => true) %>

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  • UIWebView in multithread ViewController

    - by Tao
    I have a UIWebView in a viewcontroller, which has two methods as below. The question is if I pop out(tap back on navigation bar) this controller before the second thread is done, the app will crash after [super dealloc], because "Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread.". Any help would be really appreciated. -(void)viewDidAppear:(BOOL)animated { [super viewWillAppear:animated]; NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(load) object:nil]; [operationQueue addOperation:operation]; [operation release]; } -(void)load { [NSThread sleepForTimeInterval:5]; [self performSelectorOnMainThread:@selector(done) withObject:nil waitUntilDone:NO]; }

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  • Input not firing in jsp page

    - by GigaPr
    Hi, i have been using the spring mvc frameworks lately for a university project. Could you tell me why this work <FORM METHOD=POST ACTION="SaveName.jsp"> <input type="image" class="floatR marginTMinus10" src="images/delete.png" name="image" value="${rssItem.id}" alt="Delete"/> </FORM> while this not <input type="image" class="floatR marginTMinus10" src="images/delete.png" name="image" value="${rssItem.id}" alt="Delete"/> does it mean a button has to be in a form to work? Can i use a button? if yes how do i handle the event in the controller? thanks

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  • Setting Grouping in UITableView under UINavigationController

    - by climbon
    In my UINavigationController app, my first view is a UITableView. I can't seem to find a way to set the property of this UITableView to 'grouped'. Since UITableView is dynamically generated I don't have the luxury of Interface Builder. Searched forums here and googled other places and closest I saw was to override either initWithStyle or initWithCoder as follows. (id)initWithStyle:(UITableViewStyle)style { if (self = [super initWithStyle:UITableViewStyleGrouped]) { } return self; } However this above function never gets called. when I overrided initWithCoder I could see it worked and I was able to change UITableView contents to grouped. But then title automatically became 'Root View Controller' and none of the cells were active anymore although they got grouped fine. That is while they looked active but if you click on them, those cells won't do anything. But I have seen apps which have their very first view being UITableView is grouped. So there must be a way to do it but I don't know how.

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  • 8051 microcontroller kit recommendation?

    - by LucidDefender
    I'm a first year Computer Science student looking to get started with development for micro-controllers. I'd like to use the 8051, as it's common as dirt, and is used frequently in the real world. During my junior or senior year, I'll be taking a PIC micro-controller based embedded design class, so I'd rather not do PIC now; otherwise, I'll be fairly bored during that course. Most commercial kits I see are for the AVR or PIC series of microprocessors. I'm just looking for something with decent development tools, documentation, and enough add-ons to keep my novice self occupied for the summer. Any recommendations for an 8051 family kit? Thanks!

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  • Search resetting selection in tableview

    - by Jay
    I've got an NSTableView bound to an NSArrayController via content and selection indexes. All great so far - content displayed, etc. Now an NSSearchField is bound to the array controller via filterPredicate and the property of the array content instances that's to be searched. Searching/filtering the table view works great; table view showing only matching entries. However, searching resets the selection on the NSTableView if the existing selection isn't in the search results. Worse, not only during the search but after ending the search there's no selection on the table view. The NSArrayController is set up to Avoid Empty Selection. Any hints on how to properly configure bindings in this scenario to really prevent an empty selection much appreciated!

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  • How does Rails find models and controllers? How can I get it to load more models?

    - by David
    I'm trying to create a non-ActiveRecord model in app/models/gamestate.rb. Then inside my controller (PlayController) I should be able to do GameState.new, right? No go: NameError (uninitialized constant PlayController::GameState): app/controllers/play_controller.rb:23:in `play' (at least in the development environment) But! If I do have a model called app/models/play.rb, then it's automatically loaded and I can do Play.new. So my question is: how does Rails know which classes to load? What sort of name mangling does it do to get from play#action to PlayController to app/controllers/play_controller.rb to app/models/play.rb? It seems awfully fragile, but maybe a better understanding of how this works would help. And finally, how can I get it to load app/models/gamestate.rb?

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  • Auto update CSS from SASS/SCSS in Rails?

    - by Vulgrin
    Maybe I'm confused on how SASS/SCSS works within Rails (2.3.8.) but I was under the impression that if I included the option Sass::Plugin.options[:always_update] = true that whenever I changed my SCSS file and then hit the page (controller) again, the SCSS would recompile. I can't seem to get this to work, and can't seem to find a good tutorial / example for it. I've tried setting the above property in the Environment.rb file, but it didn't seem to do anything. I tried putting it in its own initializer with require 'sass' but that doesn't seem to work either. What am I missing? Or am i just forced to keep a terminal open with a sass --watch command running to be able to rapidly debug / change my styles? thx

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  • has_one | nested attributes -

    - by user283179
    How would I show one of many nested objects in the index view class Album < ActiveRecord::Base has_many: photos accepts_nested_attributes_for :photos, :reject_if => proc { |a| a.all? { |k, v| v.blank?} } has_one: cover accepts_nested_attributes_for :cover end class Album Controller < ApplicationController layout "mini" def index @albums = Album.find(:all, :include => [:cover,]).reverse respond_to do |format| format.html # index.html.erb format.xml { render :xml => @albums } end end This is what I have so fare. I just want to show a cover for each album. Any info on this would be a massive help!!

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  • Ajax Fancy Capture in CakPHP

    - by Constantin.FF
    I have found a nice ajax capture which i would like to use in a CakePHP framework website. The plugin can be found here: http://www.webdesignbeach.com/beachbar/ajax-fancy-captcha-jquery-plugin What I have tried: in the controller: public function index($slug = null, $capture = false) { if($capture AND $capture =="get_capture"){ $rand = rand(0,4); $_SESSION['captcha'] = $rand; echo $rand; die; } if (!empty($this->data) && $_POST['captcha'] == $_SESSION['captcha']) { .... save the post } } in the view: $selectURL = " $(function() { $('.ajax-fc-container').captcha({ borderColor: 'silver', captchaDir: 'http://localhost/img/capture', url: 'http://localhost/contacts/index/contacts/get_capture', formId: 'MessageIndexForm', }); });"; $this->Html->scriptBlock($selectURL, array('inline' => false)); also I have tried with url: 'http://localhost/js/capture.php' which is the original file coming with the plugin but still not working.

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  • asp.net mvc custom routes with multiple submit buttons

    - by dangerisgo
    So I have a custom route as such: routes.MapRoute( "Wizard", // Route name "Wizard/{page}", // URL with parameters new { controller = "Wizard", action = "Index" } // Parameter defaults ); and have the following on my View: <% Html.BeginForm("Continue", "Wizard"); %> <input type="submit" value="Continue" name="Continue" /> <% Html.EndForm(); %> In which I want to call this function: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Continue(string Number, string Rev) { (...) } but in turn when that button is pressed always calls the postback Index rather than the one I want. If I remove the custom route, it calls my function, but what I want to be displayed in the address bar is: localhost:xxxx/Wizard/1 where the number at the end is the page (div shown) of the wizard either 1, 2, 3, or 4. So is there something I'm missing or can it not be done? Thanks.

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