CODEWITHSUNDEEP
ruby-on-rails
user1107922
user1107922

Reputation: 610

rails cannot save submitted result in DB

I have four controllers - users, categories, stories and comments. My problem is with comments. When I submit a comment @comment.save is false and I can't understand where is the problem. My table in DB for Comment has content, user_id, story_id. Here is part of my code:

def new
  @comment = Comment.new
  @story = Story.find(params[:story_id])
end

def create
  @story = Story.find(params[:story_id])
  if current_user
    @comment = current_user.comments.create(params[:comment])
  end

  if @comment.save
    flash[:success] = "Successfull added comment"
    redirect_to story_path(@story)
  else
    render 'new'
  end
end

show.html.erb for StoriesController:

<b><%= @story.title %></b> <br/><br/>

<%= @story.content %> <br/><br/>

<% @story.comments.each do |comment| %>
  <b>Comment:</b>
  <%= comment.content %>
<% end %>

<%= form_for([@story, @story.comments.build]) do |f| %>
  <div class="field">
    <%= f.label :content %><br />
    <%= f.text_area :content %>
  </div>
  <div class="actions">
    <%= f.submit "Add" %>
  </div>
<% end %>

comment.rb:

class Comment < ActiveRecord::Base
  attr_accessible :content, :story_id, :user_id 
  belongs_to :story
  belongs_to :user

  validates :content, :presence => true
  validates :story_id, :presence => true
  validates :user_id, :presence => true

  default_scope :order => 'comments.created_at DESC'
end

story.rb

class Story < ActiveRecord::Base
  attr_accessible :title, :content, :category_id 
  belongs_to :user
  belongs_to :category
  has_many :comments

  validates :title, :presence => true
  validates :content, :presence => true
  validates :user_id, :presence => true

  default_scope :order => 'stories.created_at DESC'
end

UPDATE When I use save! I have an error message Story cannot be blank.

Upvotes: 0

Views: 62

Answers (1)

Frederick Cheung
Frederick Cheung

Reputation: 84114

You need to set the story for the comment your are building since (as you've obviously worked out), the story in question is given by params[:story_id]. That story id isn't magically going to find its way into the params[:comment] hash. You could either do

@comment = @story.comments.build(params[:comment])
@comment.user = current_user

or create the comment on the user and then set its story.

Upvotes: 1

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