如何在Rails 4中为一个表创建多个视图

Question

I have a single table in which I store favourite dishes of users. A user can have more than one entries in the table. I have generated a view to show all the entries in the table but how do I create a view to show just the list of users. I don't have a table saving the users so I have to use DISTINCT to get the names of the users from my one and only table

Answer 1

Sounds like you have a lot to learn about relational databases, schema design and data modeling so this answer might not help very much but here goes...

You're at a point where you should normalize your schema and put users in their own table. Then the dishes table would have a user_id field pointing back to the id of the user it belongs_to .

So, you'll have a User model that has_many Dishes. And a Dish model that belongs_to User. With that you'll more easily be able to create views for users without having to do a slightly complex query to get that data out of the Dish table.

Answer 2

My routes had to be fixed and it worked ..

The default route.rb looks like this

ActionController::Routing::Routes.draw do |map|
# The priority is based upon order of creation
# First created gets highest priority.

# Sample of regular route: # map.connect 'products/:id', :controller => 'catalog', :action => 'view' # Keep in mind you can assign values other than # :controller and :action

# Sample of named route: # map.purchase 'products/:id/purchase', :controller => 'catalog', :action => 'purchase' # This route can be invoked with purchase_url(:id => product.id)

# You can have the root of your site routed by hooking up '' # -- just remember to delete public/index.html. # map.connect '', :controller => "welcome"

# Allow downloading Web Service WSDL as a file with an extension

# instead of a file named 'wsdl' map.connect ':controller/service.wsdl', :action => 'wsdl'

# Install the default route as the lowest priority. map.connect ':controller/:action/:id.:format' map.connect ':controller/:action/:id' end

I found this tutorial helpfull http://www.informit.com/articles/article.aspx?p=1087656&seqNum=5