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Questions tagged [collection-select]

143 questions
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Rails 4.2 - how to build a has_many, through: association with collection_select

I'm currently using Rails 4.2 with these models: class User < ActiveRecord::Base has_many :user_accessories, dependent: :destroy accepts_nested_attributes_for :user_accessories, reject_if: :all_blank, allow_destroy: true has_many…
s_dolan
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Ruby on Rails - Collection_select, option class

is it possible to pass a model-attribute of the collection to the select-options class? <%= f.collection_select :bank_connection_id, BankConnection.all, :id, :bank_name, {:class => ? } %> The Questmark shows where i wanted to use a attribute of the…
Tobias Münch
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Filter index with has_scope gem and collection_select

I've got a two models: Business and Category. In my business#index view, all Business names are displayed in a table, along with their associated Category. I'm using the has_scope gem and added two scopes to my Business model: :by_category and…
K.C. Barrett
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rails has_many through create multiple join records with collection_select

I'm pretty new to rails and trying to get three models to work together with a has_many through relationship, alternate class names on the join model, and a collection_select form to add records to the join model. The three models are below. I have…
Luke Wilcox
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Rails 4: How can I get the value[id] of a selected item with collection_select in my form

In my controller I would like to do the following: class SubsController < ApplicationController def push_sub @sub = Sub.find(params[:id]) @food = Food.find("ID of food selected from collection_select") => see my form down below …
Antoine
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Sort rails collection_select dropdown field by foreign attribute

I've got a collection_select and I want to sort it. usually no problem, just pass a collection.order(name DESC) or whatever to do that into the collection_select's collection field. Unfortunately, my sort criteria is a foreign attribute, something…
McSlow
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collection_select with a dynamic value

I am a newbie with ruby on rails and I need to add a collection_select that display the quantity of book to sell from 1 to the quantity saved in the database for example I have 4 examplaries of a certain book, so i need to display a collecion select…
rota90
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Matching up collection_select output with strong parameters

In rails console & using the models below, I connected grades K, 1, and 2 to the school whose Edit form has this select field: As you can see, that association correctly selects the 3 items in the field, but if I click to select/deselect grades,…
clozach
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Dropdown depending on another collection_select rubyonrails

Guys that is my code thing is I want to select a parent subject and upon selection I need to use that selected subject to list the topics within it in the parent field how can i do that?
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Ayman Salah
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Call function for Rails colleciton_select

I need to better manipulate a strong for a collection_select. I only see how to call a function on the object, but I need to do some more manipulation that the object won't know about. Is there a way to do…
MechDog
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Form using collection_select, edit action works entirely but create does not

I am using following form and controller. If I create a new notification everything gets saved except the campus_id. It seems to give the wrong campus parameter although I select a different one from the dropdown. If I edit the same entry afterwards…
Christoph
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Rails collection_select NoMethodError

In my view I have a collection_select. I want it to prompt the user to select if the session variable is set to 0. The else works fine but if the condition is 0 then it is telling me that there is no method 'id'. - if session[:ptype_id] == 0 =…
Beengie
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Rails Newbie: Collection Select & Controller Logic

I've read many related questions here, but I still don't understand how to do the following: I have a "Country" model and I'd like to create a select form that will allow users to select any of the existing countries in the model, and be redirected…
kongzi
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How to use collection_select in rails 4 from a model module?

I am trying to use collection_select tag for the default _form.html.erb using a concern/module, I need to set a hash including some department names. Here is my app/models/concerns/SetDepartment.rb module Set_Department extend…
They_Call_Me_Joe
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RoR Many to Many relationship and form

I'm stuck with this issue. The RoR doc about this topic is really awful. I don't understand how collection_select works. I have two models : Skills and Projects. A Project have many skills and a skill have many projects. So here are my schemas…
user1746732
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