Search Results

Search found 10348 results on 414 pages for 'ruby novice'.

Page 329/414 | < Previous Page | 325 326 327 328 329 330 331 332 333 334 335 336  | Next Page >

• rails: self-referential association

  - by john

  hi, My needs are very simple: I have a Tip table to receive comments and have comments to receive comments, too. To retrieve each comment that is stored in the same table (comments), I created another key for the comments on comments: "inverse_comments". I tried to use one comments table by using self-referntial association. Some resources seem to bring more than one table into the piture which are diffent from my needs. So I came up whth the following modeling for comments: class Comment < ActiveRecord::Base belongs_to :tip belongs_to :user has_many :mycomments, :through => :inverse_comments, :source => :comment end Apparently something is missing here but I cannot figure it out. Could some one enlighten me on this: what changes I need to do to make the model work? thanks.

  Read the article

• Rails: validate presence of parent_id in has_many association

  - by deb

  I have a projects resource that has many tasks. I want to ensure that every task has a project_id by adding validates_presence_of :project_id to the tasks model. However, when creating a new project with tasks, the project_id won't be available until the record saves, therefore I can't use validates_presence_of :project_id. So my question is, how do I validate presence of project_id in the task model? I want to ensure every task has a parent. ... class Project < ActiveRecord::Base has_many :tasks, :dependent => :destroy accepts_nested_attributes_for :tasks, :allow_destroy => true ... class Task < ActiveRecord::Base belongs_to :project validates_presence_of :project_id

  Read the article

• How to test processing a list of files within a directory using RSpec?

  - by John Topley

  I'm pretty new to the world of RSpec. I'm writing a RubyGem that processes a list of files within a specified directory and any sub-directories. Specifically, it will use Find.find and append the files to an Array for later output. I'd like to write a spec to test this behaviour but don't really know where to start in terms of faking a directory of files and stubbing Find.find etc. This is what little I have so far: it "should return a list of files within the specified directory" do end Any help much appreciated!

  Read the article

• usage of attr_accessor in Rails

  - by Ethan

  When do you use attr_reader/writer/accessor in Rails models?

  Read the article

• I18n translation problem

  - by kshchepelin

  I'm about to translate all time zones to Russian and I've done such things: model: # lib/i18n_time_zone.rb class I18nTimeZone < ActiveSupport::TimeZone def self.all super.map { |z| create(z.name, z.utc_offset) } end def to_s translated_name = I18n.t(name, :scope => :timezones, :default => name) "(GMT#{formatted_offset}) #{translated_name}" end end view: <%= time_zone_select :user, :time_zone, nil, :model => I18nTimeZone %> locale file (/config/locales/ru.yml): ru: timezones: "Midway Island": "??????" "Samoa": "?????" .... But there are cases when original string includes some dots (".") Like "St. Petersburg" And I18n.t() tells me that translation is missing. How can I avoid it?

  Read the article

• Rails: What's the suggested approach to retrieve xml from an outside source

  - by Syrahn

  Rails newbie (though long time programmer) here. I'm writing an test app that retrieves data from several outside sources (think Twitter, RSS feeds, etc.) and under certain circumstances, it stores that data in a db (or presents it to the user). The data model and the views are trivial. What I'm having difficulty with is making the actual xml HTTP call to the outside source and deserialize the xml response so I can query/use it in my controller/helper. What library/gem should I use to accomplish this? I tried looking this up around the net, but only came up with some article from 2006 which, knowing how fast Rails has developed, might well be completely deprecated. Your help is much appreciated.

  Read the article

• rails route question

  - by badnaam

  I am trying to build a search functionality which at a high level works like this. 1 - I have a Search model, controller with a search_set action and search views/partial to render the search. 2 - At the home page a serach form is loaded with an empty search object or a search object initialized with session[:search] (which contains user search preferences, zip code, proximity, sort order, per page etc). This form has a post(:put) action to search_set. 3 - When a registered user performs a set the params of the search form are collected and a search record is saved against that user. If a unregistered user performs a search then the search set action simply stores the params in the session[:search]. In either case, the search is executed with the given params and the results are displayed. At this point the url of in the location bar is something like.. http://localhost:3000/searches/search_set?stype=1 At this point if the user simply hits enter on the location bar, I get an error that says "No action responded to show" I am guessing because the URL contains search_set which uses a put method and even though I have a search_show (:get) action (which simply reruns the search in the session or saved in the database) does not get called. How can I handle this situation where I can route a user hitting enter into the location bar to a get method? If this does not explain the problem , please let me know I can share more details/code etc. Thanks!

  Read the article

• Rails validating full_name

  - by pepernik

  Hey... how would you validate a full_name field (name surname).

  Read the article

• Rails: link_to method

  - by SuperString

  I have something like this: <p> <b>Tags:</b> <%if @post.tags.count > 0%> <%= @post.tags.collect {|c| (link_to c.name, c)}.join(", ")%> <%else%> Does not have any tags. <%end%> </p> Which gives me Tags: <a href="/tags/1">Java</a>, <a href="/tags/2">CSS</a> Instead of Java and CSS links. What am I missing?

  Read the article

• Getting rails to execute root level file edits on system files without compromising security.

  - by voxobscuro

  I'm writing a Rails 3 application that needs to be able to trigger modifications to unix system config files. I'd like to insulate the file modifications from the consumer side by running them in a background process. I've considered writing out a temp file in rails and then copying the file with a bash script but that doesn't really insulate the system. I've also considered pulling from the database manually with a cron based script and updating the configs. But what I would really like is a component that can hook into the rails environment, read out what is needed from the database, and update the config files. This process needs to be run as root because the config files mostly live in /etc/whatever. Any suggestions? Thanks!

  Read the article

• How do I quiet image_submit_tag from params hash?

  - by Alan S

  Does anyone know how to eliminate the x and y params when you use image_submit_tag with a get method? I have a simple search form, and using get to pass the value in the url. When I use image_submit_tag, it also appends the x and y coords, so I get urls like http://example.com?q=somesearchterm&x=15&y=12 When I have used submit_tag, I can use the :name = nil attribute (was in one of Ryan Bates' Railscasts), but it doesn't seem to work for image_submit_tag. Granted it doesn't affect functionality, but I don't need them and would like them quieted.

  Read the article

• How to get correct children ids using fields_for "parents[]", parent do |f| using f.fields_for :children, child ?

  - by Anatortoise House

  I'm editing multiple instances of a parent model in an index view in one form, as in Railscasts #198. Each parent has_many :children and accepts_nested_attributes_for :children, as in Railscasts #196 and #197 <%= form_tag %> <% for parent in @parents %> <%= fields_for "parents[]", parent do |f| <%= f.text_field :job %> <%= f.fields_for :children do |cf| %> <% cf.text_field :chore %> <% end %> <% end %> <% end %> <% end %> Given parent.id==1 f.text_field :job correctly generates <input id="parents_1_job" type="text" value="coding" size="30" name="parents[1][job]"> But cf.text_field :chore generates ids and names that don't have the parent index. id="parents_children_attributes_0_chore" name="parents[children_attributes][0][chore]" If I try passing the specific child object to f.fields_for like this: <% for child in parent.children %> <%= f.fields_for :children, child do |cf| %> <%= cf.text_field :chore %> <% end %> <% end %> I get the same. If I change the method from :children to "[]children" I get id="parents_1___children_chore" which gets the right parent_index but doesn't provide an array slot for the child index. "[]children[]" isn't right either: id="parents_1__children_3_chore" as I was expecting attributes_0_chore instead of 3_chore. Do I need to directly modify an attribute of the FormBuilder object, or subclass FormBuilder to make this work, or is there a syntax that fits this situation? Thanks for any thoughts.

  Read the article

• Optional mix of filter parameters in a search the Rails way.

  - by GSP

  I've got a simple list page with a couple of search filters status which is a simple enumeration and a test query which I want to compare against both the title and description field of my model. In my controller, I want to do something like this: def index conditions = {} conditions[:status] = params[:status] if params[:status] and !params[:status].empty? conditions[???] = ["(descr = ? or title = ?)", params[:q], params[:q]] if params[:q] and !params[:q].empty? @items = Item.find(:all, :conditions => conditions) end Unfortunately, it doesn't look like I can mix the two types of conditions (the hash and the paramatized version). Is there a "Rails Way" of doing this or do I simply have to do something awful like this: has_status = params[:status] and !params[:status].empty? has_text = params[:q] and !params[:q].empty? if has_status and !has_text # build paramatized condition with just the status elsif has_text and !has_status # build paramatized condition with just the text query elsif has_text and has_status # build paramatized condition with both else # build paramatized condition with neither end I'm migrating from Hibernate and Criteria so forgive me if I'm not thinking of this correctly... Environment: Rails 2.3.4

  Read the article

• acts_as_tree and to_json or from_json

  - by Sohan

  Hello: Does anyone have a solution to convert an acts_as_tree model to json that includes all its nodes? I trued using :include=:children, but that only goes down to one single level. Any idea how to iterate the whole tree?

  Read the article

• Cant use with clauses in find_by_sql

  - by PaulMurrayCbr

  Activerecord seems to be peeking at my sql and getting it wrong. I am finding that this: sql = " select etn.* from edittree_name etn where id = #{id}" Name.find_by_sql(sql) works, but this: sql = " with pp as ( select * from dual) select etn.* from edittree_name etn where id = #{id}" Name.find_by_sql(sql) Gives me a "undefined method `each' for 1:Fixnum". Any clues? Is there a "find_by_raw_sql (and don't try to understand it yourself)" method?

  Read the article

• Rails - Sending XML or JSON

  - by timWhit

  I'm new to Rails and trying to send a request to Chargify to cancel a subscription. Their API says I need to send the method DELETE to a xml URL. This isn't a Chargify based question but rather... how would I have a user click a button that then generates this request and sends it within my Rails app? You can view this url to see what I"m trying to do - http://docs.chargify.com/api-subscriptions#cancel. Also it's working fine when I run a command-line test so I know my code works, just now sure how to put it into my Rails app (view/controller). Thanks

  Read the article

• Rails: saving a string on an object -- syntax problem?

  - by Veep

  Hey there, I am trying to write a simple function to clean a filename string and update the object. When I save a test string it works, but when I try to save the string variable I've created, nothing happens. But when I return the string, the output seems to be correct! What am I missing? def clean_filename clean_name = filename clean_name.gsub! /^.*(\\|\/)/, '' clean_name.gsub! /[^A-Za-z0-9\.\-]/, '_' clean_name.gsub!(/\_+/, ' ') #update_attribute(:filename, "test") #<-- correctly sets filename to test #update_attribute(:filename, clean_name) #<-- no effect????? WTF #return clean_name <-- seems to returns the correct string end Thank you very much.

  Read the article

• Rails Form Submission, User can't be blank

  - by pmanning

  I'm trying to create an event through an event form and I keep getting a form error that says "User can't be blank". The event needs a user_id to post a feed_item showing who created the event. Why can't this event get created? event.rb class Event < ActiveRecord::Base attr_accessible :description, :location, :title, :category_id, :start_date, :start_time, :end_date, :end_time, :image belongs_to :user belongs_to :category has_many :rsvps has_many :users, through: :rsvps, dependent: :destroy mount_uploader :image, ImageUploader validates :title, presence: true, length: { maximum: 60 } validates :user_id, presence: true create_events.rb (database) class CreateEvents < ActiveRecord::Migration def change create_table :events do |t| t.string :title t.date :start_date t.time :start_time t.date :end_date t.time :end_time t.string :location t.string :description t.integer :category_id t.integer :user_id t.timestamps end add_index :events, [:user_id, :created_at] end end events_controller.rb def new @event = Event.new @user = current_user end def create @event = current_user.events.build(params[:event]) if @event.save flash[:success] = "Sesh created!" redirect_to root_url else @feed_items = [] render 'static_pages/home' end end routes.rb SampleApp::Application.routes.draw do resources :users do member do get :following, :followers, :events end end resources :events do member do get :members end end root to: 'static_pages#home' events/new.html.erb <%= form_for @event, :html => {:multipart => true} do |f| %> <%= render 'shared/error_messages', object: @event %>

  Read the article

• Selecting favourites from DB rails 3

  - by Richlewis

  I have a small app which has Users, Recipes, Ingredients and preparation models A user has many recipes, recipes belong to user and ingredients/preparation belongs to recipes. Now a user can view all recipes but I would like the option to add the particular recipe to a favourites list. Would I need to set a new DB to hold this and then link by associations or could I add a column to the recipe model called fav for example? Im looking for the best practice here or if someone has done this before and can offer any advice that would be appreciated

  Read the article

• Finding records when using has_many through associations

  - by winter sun

  I have two models, Worker and Project, and they are connected with has_many through association. I manage to find all the projects which are related to a specific worker by writing the following code: worker=Worker.find_by_id("some_id") worker.projects but I want the projects that I get to be only active projects (in the project model I have a status field) I tried to do something like worker.projects(:status_id=>'active') but it didn’t work for me. Can somebody tell me how I can do this?

  Read the article

• Updating cached counts in MySQL

  - by phleet

  In order to fix a bug, I have to iterate over all the rows in a table, updating a cached count of children to what its real value should be. The structure of the things in the table form a tree. In rails, the following does what I want: Thing.all.each do |th| Thing.connection.update( " UPDATE #{Thing.quoted_table_name} SET children_count = #{th.children.count} WHERE id = #{th.id} " ) end Is there any way of doing this in a single MySQL query? Alternatively, is there any way of doing this in multiple queries, but in pure MySQL? I want something like UPDATE table_name SET children_count = ( SELECT COUNT(*) FROM table_name AS tbl WHERE tbl.parent_id = table_name.id ) except the above doesn't work (I understand why it doesn't).

  Read the article

• rails script/generate scaffold problem

  - by palecoder

  I'm new to rails and was trying out the scaffold command - the following scaffold runs and works when I view it via web brick script/generate book title:string the following fails - gives me a weird route error script/generate application name:string the following works script/generate app name:string can anyone shed some light on this? Is 'application' a reserved word?

  Read the article

• Clarifying... So Background Jobs don't Tie Up Application Resources (in Rails)?

  - by viatropos

  I'm trying to get a better grasp of the inner workings of background jobs and how they improve performance. I understand that the goal is to have the application return a response to the user as fast as it can, so you don't want to, say, parse a huge feed that would take 10 seconds because it would prevent the application from being able to process any other requests. So it's recommended to put any operations that take more than say 500ms to execute, into a queued background job. What I don't understand is, doesn't that just delay the same problem? I know the user who invoked that background job will get an immediate response, but what if another user comes right when that background job starts (and it takes 10 seconds to finish), wont that user have to wait? Or is the main issue that, requests are the only thing that can happen one-at-a-time, while on the other hand a request can start while one+ background jobs are in the middle of running? Is that correct?

  Read the article

• Drop mysql tables in Rails

  - by strangerpixel

  How do I drop selected tables in Rails? I want to drop all tables from a database with a given prefix. PHPMyAdmin would be very useful at this point. Thanks

  Read the article

• how to set custom tab in jquery ui and use with rails

  - by Katyal

  I'm using jqueryUI for tabs on a page. I initialize it like below: $("#tabs").tabs(); <div id="tabs"> <ul> <li><a href="#tabs-4">Part A</a></li> <li><a href="#tabs-2">Part B</a></li> <li><a href="#tabs-5">Part C</a></li> </ul> <div id="tabs-4"> ..... </div> <div id="tabs-2"> .... </div> <div id="tabs-5"> .... </div> </div> I have 2 questions. How do I set the tab to be custom. say I want second tab to be shown first. $('#tabs').tabs(2) does not work. i got that from this link Let say I click on a button inside tab1. Clicking on the button takes control back to an action and then control comes back to this page. When the control comes back...then is it possible to set a custom tab?. For example. in tab 1 I click something...go back to the action...and then I want to come back to tab 2.

  Read the article

< Previous Page | 325 326 327 328 329 330 331 332 333 334 335 336  | Next Page >