Really stumped here. I'm trying to get my form to update the categories on the edit form. Problem is, everything in my form updates when submitted except the categories. It ends up inserting the new category chosen like it's going through the create method instead of the update method, so when the edit form is shown again after submission, it keeps doubling the fields of categories. 1, then 2, then 4, then 8, etc. after each submission. Please please help anyone. Appreciate it.
views/blog_posts/edit.html.erb
<div class="col-md-6 col-md-offset-3 blog-submit">
<%= form_for #blog_post do |b| %>
<%= b.label :title %>
<%= b.text_field :title %><br>
<%= b.fields_for :categorizations do |cat| %>
<%= cat.label :category_name, "Category 1" %>
<%= cat.collection_select(:category_id, Category.all, :id, :category_name, {blank: "Select Category"}) %>
<%= link_to "Add Categories", new_category_path %>
<br>
<% end %>
<%= b.submit "Submit", class: "btn btn-primary" %>
<% end %>
</div>
Blog_post controller:
class BlogPostsController < ApplicationController
protect_from_forgery
before_action :authenticate_admin!, only: [:new, :edit]
def index
#blog_posts = BlogPost.order(id: :desc)
end
def new
#blog_post = BlogPost.new
#blog_post.categorizations.build.build_category
#blog_post.categories.build
end
def edit
#blog_post = BlogPost.find(params[:id])
end
def create
#blog_post = BlogPost.new(blog_post_params)
respond_to do |format|
if #blog_post.save
format.html { redirect_to #blog_post, notice: 'Your blog was submitted successfully' }
format.json { render :show, status: :created, location: #blog_post }
else
format.html { render :new }
format.json { render json: #blog_post.errors, status: :unprocessable_entity }
end
end
puts #blog_post.errors.inspect
end
def update
#blog_post = BlogPost.find(params[:id])
if #blog_post.update_attributes(blog_post_params)
render 'show'
else
render 'edit'
end
end
def show
#blog_post = BlogPost.find(params[:id])
end
private
def blog_post_params
params.require(:blog_post).permit(:title, :content, :posted_by, :comments, :blog_pic, {categorizations_attributes: [:category_id, :category_name]})
end
end
models:
class BlogPost < ApplicationRecord
has_many :categorizations
has_many :categories, :through => :categorizations
accepts_nested_attributes_for :categorizations
has_many :comments
mount_uploader :blog_pic, BlogPicUploader
end
class Categorization < ApplicationRecord
belongs_to :blog_post
belongs_to :category
end
class Category < ApplicationRecord
has_many :categorizations
has_many :blog_posts, :through => :categorizations
end
Add id in blog_post_params as shown below. This will work for you.
def blog_post_params
params.require(:blog_post).permit(:title, :content, :posted_by, :comments, :blog_pic, {categorizations_attributes: [:id,:category_id, :category_name]})
end
Related
I have a Poll app with 3 models.
Poll.rb
class poll < ApplicationRecord
validates_presence_of :user, :title
belongs_to :user
has_many :questions, dependent: :destroy
has_many :options, through: :questions
accepts_nested_attributes_for :questions
end
Question.rb
class Question < ApplicationRecord
validates_presence_of :poll_id, :question_id, :title
belongs_to :poll
has_many :options
accepts_nested_attributes_for :options, reject_if: proc { |attributes| attributes['title'].blank? }
end
Option.rb
class Option < ApplicationRecord
validates_presence_of :question_id, :title
belongs_to :question
belongs_to :poll
end
I want the question form to have a field for adding options so I've added this to the question _form.
<%= form.fields_for :option do |o| %>
<div>
<%= o.label "Option", style: "display: block" %>
<%= o.text_field :title, placeholder: "Enter Option here" %>
</div>
<% end %>
I can now see an option block which is good. Although I wish to have 3 possbile options so in the questions_controller.rb I've added the following:
def new
#question = #poll.questions.build
3.times { #question.options.build } # 3 different options
end
Despite this I'm only seeing one option block instead of the 3. Why is this the case and how do i fix? Additionally I'm not seeing new entries into the options postgresql table.
Full questions_controller.rb
class QuestionsController < ApplicationController
before_action :set_question, only: %i[ show edit update destroy ]
before_action :set_poll
# GET /questions or /questions.json
def index
#questions = Question.all
end
# GET /questions/1 or /questions/1.json
def show
end
# GET /questions/new
def new
# #question = Question.new
#question = #poll.questions.build
3.times { #question.options.build } # 5 different options
end
# GET /questions/1/edit
def edit
end
# POST /questions or /questions.json
def create
#question = Question.new(question_params)
respond_to do |format|
if #question.save
format.html { redirect_to polls_question_url(#question), notice: "Question was successfully created." }
format.json { render :show, status: :created, location: #question }
else
format.html { render :new, status: :unprocessable_entity }
format.json { render json: #question.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /questions/1 or /questions/1.json
def update
respond_to do |format|
if #question.update(question_params)
format.html { redirect_to polls_question_url(#question), notice: "Question was successfully updated." }
format.json { render :show, status: :ok, location: #question }
else
format.html { render :edit, status: :unprocessable_entity }
format.json { render json: #question.errors, status: :unprocessable_entity }
end
end
end
# DELETE /questions/1 or /questions/1.json
def destroy
poll_id = Question.find_by(params[:poll_id])
session[:return_to] ||= request.referer
#question.destroy
respond_to do |format|
format.html { redirect_to session.delete(:return_to), notice: "Question was successfully destroyed." }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_question
#question = Question.find(params[:id])
end
# Only allow a list of trusted parameters through.
def question_params
params.require(:question).permit(:poll_id, :question_type, :title, :description, :randomize_selection, :voter_abstain, { option_attributes: [:question_id, :poll_id, :party_id, :title, :description] } )
end
def set_poll
#poll = poll.find_by(params[:poll_id])
end
end
routes.rb
resources :users do
resources :polls
end
resource :polls do
resources :questions
end
resource :questions do
resources :options
end
Edit:
Here is my questions form partial.
_form.html.erb
<%= form_with(model: [#Poll, question] ) do |form| %>
<% if question.errors.any? %>
<div style="color: red">
<h2><%= pluralize(question.errors.count, "error") %> prohibited this question from being saved:</h2>
<ul>
<% question.errors.each do |error| %>
<li><%= error.full_message %></li>
<% end %>
</ul>
</div>
<% end %>
<div>
<%= form.hidden_field :poll_id %>
</div>
<div>
<%= form.label :question_type, style: "display: block" %>
<%= form.text_field :question_type %>
</div>
<div>
<%= form.label :title, style: "display: block" %>
<%= form.text_field :title %>
</div>
<div>
<%= form.label :description, style: "display: block" %>
<%= form.text_area :description %>
</div>
<div>
<%= form.label :randomize_selection, style: "display: block" %>
<%= form.check_box :randomize_selection %>
</div>
<div>
<%= form.label :voter_abstain, style: "display: block" %>
<%= form.check_box :voter_abstain %>
</div>
<div>
<%= form.fields_for :options do |o| %>
<div>
<%= o.label "Option", style: "display: block" %>
<%= o.text_field :title, placeholder: "Enter Option here" %>
</div>
<% end %>
</div>
<div>
<%= form.submit %>
</div>
<% end %>
Here is the poll's show where I am rendering the forms.
show.html.erb
<p style="color: green"><%= notice %></p>
<p>
<strong>Poll Title:</strong>
<%= #poll.title %>
<%= render #poll %>
</p>
<div>
<%= link_to "Edit this poll", edit_user_poll_path(#poll) %> |
<%= link_to "Back to polls", user_polls_path %> |
<%= link_to "Destroy this poll", user_poll_path(#poll), method: :delete %>
</div>
<% if #poll.questions.any? %>
<hr>
<h2>Questions:</h2>
<%= render #poll.questions %>
<% end %>
<hr>
<h2>Add a new Question:</h2>
<%= render "questions/form", question: #poll.questions.build %>
The argument you pass to fields_for has to match the name of the assocation on the model:
<%= form.fields_for :options do |o| %>
<div>
<%= o.label "Option", style: "display: block" %>
<%= o.text_field :title, placeholder: "Enter Option here" %>
</div>
<% end %>
Pay very careful attention to plurization in Rails. Its a huge part of getting Convention over Configuration to work for you instead of against you.
However there are a quite a few other problems with this code.
Constants should always be CamelCase or UPPERCASE in Ruby - you need to change class poll to class Poll and fix all the references to the class. This isn't just a matter of style since the interpreter treats identifiers that start with an uppercase letter completely differently.
You're not nesting it properly. You have a nested route but you're still treating it like a non-nested resource in your controller and docstrings.
You're passing the parent id in your params whitelist. :poll_id and :question_id should not be whitelisted. Do not pass the parent id with a hidden input. The question id is assigned by Rails - you should not trust the user to pass it.
The option should not need a poll_id. Use an indirect has_one assocation to go up the tree. This could cause a edge case where a question and its options belong to different polls.
First lets fix the models:
class Poll < ApplicationRecord
# belongs_to assocations are required by default
# adding validations will just cause duplicate error messages
validates_presence_of :title
belongs_to :user
has_many :questions, dependent: :destroy
has_many :options, through: :questions
accepts_nested_attributes_for :questions
end
class Question < ApplicationRecord
validates_presence_of :title
belongs_to :poll
has_many :options
accepts_nested_attributes_for :options, reject_if: proc { |attributes| attributes['title'].blank? }
end
class Option < ApplicationRecord
validates_presence_of :title
belongs_to :question
has_one :poll, through: :question
end
Then I would recommend that you use shallow nesting
resource :polls do
resources :questions, shallow: true
end
This creates the questions member routes (show, edit, delete) without the /polls/:poll_id prefix while the collection routes (index, create, new) are nested.
And that you set controller up as:
class QuestionsController < ApplicationController
before_action :set_question, only: %i[ show edit update destroy ]
before_action :set_poll, only: %i[ new create index ]
# GET /polls/1/questions or /polls/1/questions.json
def index
#questions = #poll.questions.all
end
# GET /questions/1 or /polls/1/questions/1.json
def show
end
# GET /polls/1/questions/new
def new
# build is just an alias of new for legacy compatibility with Rails 2...
# its about time that we ditch it
#question = #poll.questions.new
3.times { #question.options.new } # 5 different options
end
# GET /questions/1/edit
def edit
end
# POST /polls/1/questions or /polls/1/questions.json
def create
#question = #poll.questions.new(question_params)
respond_to do |format|
if #question.save
format.html { redirect_to #question, notice: "Question was successfully created." }
format.json { render :show, status: :created, location: #question }
else
format.html { render :new, status: :unprocessable_entity }
format.json { render json: #question.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /questions/1 or /questions/1.json
def update
respond_to do |format|
if #question.update(question_params)
format.html { redirect_to #question, notice: "Question was successfully updated." }
format.json { render :show, status: :ok, location: #question }
else
format.html { render :edit, status: :unprocessable_entity }
format.json { render json: #question.errors, status: :unprocessable_entity }
end
end
end
# DELETE /questions/1 or /questions/2.json
def destroy
session[:return_to] ||= request.referer
#question.destroy
respond_to do |format|
format.html { redirect_to session.delete(:return_to), notice: "Question was successfully destroyed." }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_question
#question = Questions.find(params[:id])
end
# Only allow a list of trusted parameters through.
def question_params
# do not write this in a single unreadable line
params.require(:question).permit(
:question_type,
:title,
:description,
:randomize_selection,
:voter_abstain,
# do not wrap hash arguments in brackets
# as it will break if/when the `permit` method is changed to use real keyword arguments
# for has_many assocations the key naming convention is also plural_attributes
options_attributes: [
:party_id,
:title,
:description
]
)
end
def set_poll
#poll = Poll.find_by(params[:poll_id])
end
end
The key difference here is that you should look up the poll by the parameter in the URL for the nested routes and create the question off the poll instance (which sets poll_id).
Added:
You're not actually using the model you initialized in your controller. If you want to render the form from a completely different action you need to initialize the instance variable there:
class PollsController < ApplicationController
def show
#question = #poll.questions.new
3.times { #question.options.new } # 5 different options ???
end
# ...
end
<%= render "questions/form", question: #question %>
And in your partial you have a sneaky little bug. Ruby is case sensitive so #poll and #Poll are actually different variables.
irb(main):049:0> #foo = "bar" => "bar"
irb(main):050:0> #Foo
=> nil
Since instance variables are auto-vivified you're just get an unexpected nil instead of an error. What you actually want is:
<%= form_with(model: [#poll, question] ) do |form| %>
This example has been taken from Rails 4 Form: has_many through: checkboxes
models:
#models/user.rb
class User < ActiveRecord::Base
has_many :animals, through: :animal_users
has_many :animal_users
end
#models/animal.rb
class Animal < ActiveRecord::Base
has_many :users, through: :animal_users
has_many :animal_users
end
#models/animal_user.rb
class AnimalUser < ActiveRecord::Base
belongs_to :animal
belongs_to :user
end
The user form:
#views/users/_form.html.erb
<%= form_for(#user) do |f| %>
<div class="field">
<%= f.label :name %><br>
<%= f.text_field :name %>
</div>
# Checkbox part of the form that now works!
<div>
<% Animal.all.each do |animal| %>
<%= check_box_tag "user[animal_ids][]", animal.id, f.object.animals.include?(animal) %>
<%= animal.animal_name %>
<% end %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
Strong params within the users_controller.rb
def user_params
params.require(:user).permit(:name, animal_ids: [])
end
I followed this example and could not save the join table. I have two question here
What type should be animal_ids, string or integer?
How to save the form?
Currently I am saving it like this
def create
respond_to do |format|
if #user.save
format.html { redirect_to #user, notice: 'user was successfully created.' }
format.json { render json: #user, status: :created, location: #user}
else
format.html { render action: "new" }
format.json { render json: #user.errors, status: :unprocessable_entity }
end
end
end
And this only create user but not the join table. How can I do this?
#user.save is not passing in the nested attributes (animal_ids)
You'll need to pass the params like this:
#user = User.new(user_params)
And in your User model (user.rb) you need to add something like:
accepts_nested_attributes_for :animals
accepts_nested_attributes_for :animal_users
I am required to use nested forms on an assignment I am working on and I got stuck because my nested form attributes wont submit to database.
Here is what my controller looks like
def new
#booking = Booking.new
params[:no_of_passengers].to_i.times { #booking.passengers.build }
end
def create
#booking = Booking.new(booking_params)
respond_to do |format|
if #booking.save
format.html { redirect_to '/booking_confirmed', notice: 'Booking was successfully created.' }
format.json { render :show, status: :created, location: #booking }
else
format.html { render :new }
format.json { render json: #booking.errors, status: :unprocessable_entity }
end
end
end
private
def booking_params
params.permit(
:airline, :origin, :destination, :departure_date, :departure_time, :arrival_date,
:arrival_time, :flight_id, :price, :no_of_passengers, :user_id, :booking,
passenger_attributes: [
:id,:booking_id, :name, :email,:done,:_destroy
]
)
end
Here is the association between the models
class Booking < ActiveRecord::Base
has_many :passengers
accepts_nested_attributes_for :passengers, reject_if: lambda { |attributes| attributes['name'].blank? }
end
class Passenger < ActiveRecord::Base
belongs_to :bookings
end
And here is the form
<%= form_for #booking do |b| %>
<%= b.fields_for :passengers do |p| %>
<%= p.text_field :name, placeholder: "Passenger Name" %>
<%= p.text_field :email, placeholder: "Passenger Email" %>
<% end %>
<% end %>
I checked the passenger table using Passenger.all in rails console and it returns nothing.
What am I doing wrong?
After a pairing session with sunnyk, I was able to see the errors.
The first error was that my class Passenger has belongs_to :bookings instead of belongs_to :booking. This is a common error though. The Associations between these classes now looks like:
class Booking < ActiveRecord::Base
belongs_to :flight
has_many :passengers
accepts_nested_attributes_for :passengers, reject_if:
lambda {|attributes| attributes['name'].blank?}, :allow_destroy => true
end
class Passenger < ActiveRecord::Base
belongs_to :booking
end
class Flight < ActiveRecord::Base
has_many :bookings
has_many :passengers, through: :bookings
accepts_nested_attributes_for :passengers
accepts_nested_attributes_for :bookings
end
Next:
Instead of using the default value of no_of_passengers for building my nested form, I used the cocoon gem, which makes nested forms building and management easier. I also crated a new params method, in which I made the flight_id permitted, and then passed it as an argument for my booking instance in my new method alongside my current user. So now my new method looks like this.
def new
#booking = Booking.new(new_booking_params)
#booking.user = current_user if current_user
end
def new_booking_params
params.permit(:flight_id)
end
After that, I had to make another params method for my create method, so as to allow the parameters I want in the bookings table, this include the passengers_attributes. Now my create method looks like this.
def create
#booking = Booking.new(another_booking_params)
respond_to do |format|
if #booking.save
format.html { redirect_to '/booking_confirmed', notice: 'Booking was successfully created.' }
format.json { render :show, status: :created, location: #booking }
else
format.html { render :new }
format.json { render json: #booking.errors, status: :unprocessable_entity }
end
end
end
def another_booking_params
params.require(:booking).permit(:flight_id, :user_id, :no_of_passengers,
passengers_attributes:[:name, :email])
end
Lastly, I had to adjust my form to look like this.
<%= form_for(#booking, url: bookings_path) do |f| %>
<%= f.hidden_field(:flight_id)%>
<%= f.hidden_field(:user_id) %>
<%= f.hidden_field(:no_of_passengers)%>
<%= f.fields_for :passengers do |passenger| %>
<%= render 'passenger_fields', :f => passenger %>
<% end %>
<%= link_to_add_association 'Add Another passenger',f, :passengers, :class => 'btn btn-primary add' %>
<%= submit_tag "Book Now", class: "btn btn-primary book" %>
<% end %>
and passenger_fields partial looks like.
<div class="nested-fields form-inline">
<div class="form-group">
<%= f.text_field :name, :class => "form-control", placeholder: "Passenger Name" %>
</div>
<div class="form-group">
<label>-</label>
<%= f.text_field :email, :class => "form-control", placeholder: "Passenger Email" %>
</div>
<div class="links pull-right">
<%= link_to_remove_association "Delete", f, class: "btn btn-danger" %>
</div>
<hr>
</div>
All that did the trick. I hope this will help others to understand nested forms better
I have a model named Entry, which has many Categories. The page where I create/edit the Entry has checkboxes for every Category.
When I am editing an Entry, everything works okay. When I create the Entry, I get as an error for the #entry:
:entry_categories=>["is invalid"]
My thinking is that rails can't create the entry_categories because it doesn't know the id of the Entry ( which it shouldn't, it hasn't been assigned an id yet ).
I feel like this is a very common thing to try to do. I haven't been able to find an answer though. Here comes the code spamming, there must be something I am missing and hopefully some more experienced eyes can see it.
entry.rb
class Entry < ActiveRecord::Base
validates_presence_of :contents
validates_presence_of :title
has_many :entry_categories, dependent: :destroy
has_many :categories, through: :entry_categories
belongs_to :book
validates_presence_of :book
end
entry_category.rb
class EntryCategory < ActiveRecord::Base
belongs_to :entry
belongs_to :category
validates_presence_of :entry
validates_presence_of :category
end
category.rb
class Category < ActiveRecord::Base
validates_presence_of :name
validates_uniqueness_of :name
has_many :entry_categories, dependent: :destroy
has_many :entries, through: :entry_categories
end
entries_controller.rb
class EntriesController < ApplicationController
before_action :find_entry, only: [ :show, :edit, :update, :destroy ]
before_action :find_book, only: [ :new, :create, :index ]
before_action :authenticate_admin!, only: [:new, :create, :edit, :update, :destroy ]
def new
#entry = Entry.new
end
def create
#entry = #book.entries.new( entry_params )
if #entry.save
redirect_to entry_path( #entry ), notice: 'Entry Created'
else
render :new
end
end
def show
#categories = Category.joins( :entry_categories ).where( "entry_categories.entry_id = #{#entry.id} " ).select( "name, categories.id " )
#category_class = #categories.first.name.downcase.gsub( / /, '_' ) if #categories.any?
end
def index
#entries = #book ? #book.entries : Entry.all
end
def edit
end
def update
if #entry.update( entry_params )
redirect_to entry_path( #entry ), notice: 'Entry Updated'
else
render :edit
end
end
def destroy
#book = #entry.book
#entry.destroy
redirect_to book_path( #book ) , notice: 'Entry Destroyed'
end
protected
def entry_params
params.require(:entry).permit( :title, :contents, :year, :month, :day, category_ids: [] )
end
def find_entry
#entry = Entry.find( params[:id] )
end
def find_book
#book = Book.find( params[ :book_id ] )
rescue
#book = nil
end
end
_form.html.erb
<%= form_for [ #book, #entry ] do | form | %>
<%= content_tag :p, title %>
<%= form.text_field :title, placeholder: 'Title', required: true %>
<%= form.number_field :year, placeholder: 'Year' %>
<%= form.number_field :month, placeholder: 'Month' %>
<%= form.number_field :day, placeholder: 'Day' %>
<%= form.text_area :contents %>
<fieldset>
<legend>Categories</legend>
<%= form.collection_check_boxes(:category_ids, Category.all, :id, :name ) %>
</fieldset>
<%= form.submit %>
<% end %>
So again, the entry_categories are invalid in the create method, in the update they are fine. It's the same html file.
There must be some way to tell rails to save the Entry before trying to save the EntryCategory?
Thanks.
I managed to get this working by taking the validations out of EntryCategory:
class EntryCategory < ActiveRecord::Base
belongs_to :entry
belongs_to :category
validates_presence_of :category
end
I'm not particularity happy about this solution, and would still appreciate other thoughts.
I think you can use any of the following approach:
You can use autosave functionality of Active Record association. By this, when you will save EntryCategory, it will automatically save Entry as well.
class EntryCategory < ActiveRecord::Base
belongs_to :entry , autosave: true
#rest of the code
end
You can also use before_save callback of active record. by this, whenever you will save EntryCategory, it will first call a specified method, than proceed with saving.
class EntryCategory < ActiveRecord::Base
before_save :save_associated_entries
#rest of the code
def save_associated_entries
# code to save associated entries here
end
end
Try this:
replace this code:
<%= form.collection_check_boxes(:category_ids, Category.all, :id, :name ) %>
with:
<% Category.all.order(name: :asc).each do |category| %>
<div>
<%= check_box_tag "entry[category_ids][]", category.id %>
<%= category.name %>
</div>
you can format it with fieldset instead of div
My link_to in my view is going to a completely different "show.html.erb" than I'd like it to. I'm basically trying to understand why the "link_to #exhibit is linking to an "Investigation" profile. I think it may have to do with my routes file or the fact that its a "belong to" relationship...but can't seem to get it workin...what should that link_to be?
UPDATE: (AS PER BROIS QUESTION)
The missing misbehaving link_to is in the <%= link_to #exhibit do %> in show.html.erb
MY EXHIBIT.RB (MODEL)
class Exhibit < ActiveRecord::Base
attr_accessible :content, :investigation_id, :name, :user_id, :media, :media_html
belongs_to :investigation
has_many :categorizations
has_many :categories, :through => :categorizations
validates :name, presence: true, length: { maximum: 140 }
validates :content, presence: true
default_scope -> { order('created_at DESC') }
auto_html_for :media do
html_escape
image
youtube(:width => 400, :height => 250)
link :target => "_blank", :rel => "nofollow"
simple_format
end
MY EXHIBIT CONTROLLER:
class ExhibitsController < ApplicationController
include AutoHtml
def new
#exhibit = Exhibit.new
end
def show
#exhibit = Exhibit.find(params[:id])
end
def index
#exhibits = Exhibit.paginate(page: params[:page])
end
def create
#investigation = Investigation.find(params[:investigation_id])
#exhibit = #investigation.exhibits.create(params[:exhibit])
if #exhibit.save
flash[:success] = "You've successfully added etc etc..."
redirect_to investigation_path(#investigation)
else
render 'new'
end
end
end
MY ROUTES.RB
resources :sessions, only: [:new, :create, :destroy]
resources :investigations do
resources :players
end
resources :investigations do
resources :exhibits
end
LASTLY MY SHOW.HTML.ERB (INVESTIGATION PROFILE)
<% #investigation.exhibits.each do |exhibit| %>
<div class="row-fluid services_circles">
<%= link_to #exhibit do %>
<div class="media">
<div class="pull-left">
<%= exhibit.media_html %>
</div>
<div class="media-body">
<h4 class="media-heading"><%= exhibit.name %></h4>
<p><%= exhibit.content %></p>
</div>
</div>
<% end %>
<% end %>
ADDED THE INVESTIGATIONS CONTROLLER
class InvestigationsController < ApplicationController
def new
#investigation = Investigation.new
end
def show
#investigation = Investigation.find(params[:id])
end
def index
#investigations = Investigation.paginate(page: params[:page])
end
def create
#investigation = Investigation.new(params[:investigation])
if #investigation.save
flash[:success] = "You've successfully created..."
redirect_to #investigation
else
render 'new'
end
end
end
ADDED THE INVESTIGATION MODEL
class Investigation < ActiveRecord::Base
# belongs_to :user
has_many :players, dependent: :destroy
has_many :exhibits, dependent: :destroy
default_scope -> { order('created_at DESC') }
end
I appreciate the help...if i need to post any more info just let me know
IN YOUR : app/contorollers/exhibits_controller.rb
def show
#investigation = Investigation.find(params[:investigation_id])
#exhibit = Exhibit.find(params[:id])
end
IN YOUR : app/views/exhibits/show.html.erb
<%= link_to investigation_exhibit_path(#investigation, #exhibit) do %>
Maybe, I think.