Different notification partials for different models? - ruby-on-rails

Question

notifications/index has <%= render partial: "notifications/notification", collection: #notifications %>, which contains:
<%= link_to "", notifications_habit_path(notification.id), method: :delete, class: "glyphicon glyphicon-remove" %>
<%= link_to Comment.find_by(notification.comment_id).user.name, user_path(Comment.find_by(notification.comment_id).user.id) %>
commented on <%= link_to "your habit", habit_path(notification) %>
which shows:
This is problematic because it should say 3x ".com commented on your habit" and 2x ".com commented on your value".
We need to create two separate partials notifications/_habits & notifications/_values.
My confusion is how to make the code know when to direct to the habit partial or the value partial based on whether it's a habit or value.
notifications_controller
def index
#habits = current_user.habits
#valuations = current_user.valuations #aka values
#notifications = current_user.notifications
#notifications.each do |notification|
notification.update_attribute(:read, true)
end
The notifications are based on if a user comments on one of your habits or values:
comment.rb
class Comment < ActiveRecord::Base
after_save :create_notification
has_many :notifications
belongs_to :commentable, polymorphic: true
belongs_to :user
validates :user, presence: true
private
def create_notification
Notification.create(
user_id: self.user_id,
comment_id: self.id,
read: false
)
end
end
I followed this tutorial but it is based on using just one model: http://evanamccullough.com/2014/11/ruby-on-rails-simple-notifications-system-tutorial/
UPDATE FOR VALADAN
class CommentsController < ApplicationController
before_action :load_commentable
before_action :set_comment, only: [:show, :edit, :update, :destroy, :like]
before_action :logged_in_user, only: [:create, :destroy]
def index
#comments = #commentable.comments
end
def new
#comment = #commentable.comments.new
end
def create
#comment = #commentable.comments.new(comment_params)
if #comment.save
redirect_to #commentable, notice: "comment created."
else
render :new
end
end
def edit
#comment = current_user.comments.find(params[:id])
end
def update
#comment = current_user.comments.find(params[:id])
if #comment.update_attributes(comment_params)
redirect_to #commentable, notice: "Comment was updated."
else
render :edit
end
end
def destroy
#comment = current_user.comments.find(params[:id])
#comment.destroy
redirect_to #commentable, notice: "comment destroyed."
end
def like
#comment = Comment.find(params[:id])
#comment_like = current_user.comment_likes.build(comment: #comment)
if #comment_like.save
#comment.increment!(:likes)
flash[:success] = 'Thanks for liking!'
else
flash[:error] = 'Two many likes'
end
redirect_to(:back)
end
private
def set_comment
#comment = Comment.find(params[:id])
end
def load_commentable
resource, id = request.path.split('/')[1, 2]
#commentable = resource.singularize.classify.constantize.find(id)
end
def comment_params
params[:comment][:user_id] = current_user.id
params.require(:comment).permit(:content, :commentable, :user_id, :like)
end
end

Answer 1

Your notification is associated with comment, and comment can have commentable of type Habit or Value (you havent show those two model, so lets call them Habit and Value models).
So you can check if notification is for Habit or Value by checking commentable type like this:
Comment.find_by(notification.comment_id).commentable.class == Habit
or check if its value notification:
Comment.find_by(notification.comment_id).commentable.class == Value
Similar way is checking polymorphic type on the comment, like:
Comment.find_by(notification.comment_id).commentable_type == 'Habit'
So on the end, you dont actualy need two partials just IF and two different link_to, one for value and one for habit.
<%= link_to "", notifications_habit_path(notification.id), method: :delete, class: "glyphicon glyphicon-remove" %>
<%= link_to Comment.find_by(notification.comment_id).user.name, user_path(Comment.find_by(notification.comment_id).user.id) %> commented on
<% if Comment.find_by(notification.comment_id).commentable.class == Habit %>
<%= link_to "your habit", habit_path(notification) %>
<% else %>
<%= link_to "your value", value_path(notification) %>
<% end %>

Answer 2

I needed
<% if notification.habit_id %>
<%= link_to "your habit", habit_path(notification) %>
<% elsif notification.valuation_id %>
<%= link_to "your value", valuation_path(notification) %>
<% elsif notification.quantified_id %>
<%= link_to "your stat", quantified_path(notification) %>
<% elsif notification.goal_id %>
<%= link_to "your goal", goal_path(notification) %>
<% end %>
and in the comment model:
def create_notification
Notification.create(
habit_id: self.habit_id,
valuation_id: self.valuation_id,
quantified_id: self.quantified_id,
goal_id: self.goal_id,
user_id: self.user_id,
comment_id: self.id,
read: false
)
end