model-associations Questions
4
I have a search function, which works great for staff, so I can search by name.
Now, I want filter staffs by staffgroup.groupname, but unfortunatelly i get this error:
Column not found: 1054 Unkn...
Blackamoor asked 28/1, 2013 at 13:19
4
Introduction
I'm facing an application design problem with the Ext.data.Model class in ExtJS. I will try to develop my ideas to a very common online store scenario here, so you can follow me. I wo...
Burchell asked 8/7, 2011 at 10:2
1
Solved
I have a simple set up of User and UserProfile model with User has_one :user_profile and UserProfile belongs_to :user.
But I am unable to wrap my head around how Rails defines execution order of a...
Genitourinary asked 9/3, 2012 at 9:23
2
Solved
I have two models:
#Product
class Product < ActiveRecord::Base
has_and_belongs_to_many :categories
attr_accessible :name
...
end
#Category
class Category < ActiveRecord::Base
has_and_b...
Uprise asked 18/12, 2012 at 8:26
2
What i want to do is create placement model which will be used to post jobs for 3 fixed categories i.e internship,corporate and freelance.There will be a menu of placement which will have 3 menues ...
Coincident asked 10/5, 2012 at 12:43
4
Solved
How do rails association methods work? Lets consider this example
class User < ActiveRecord::Base
has_many :articles
end
class Article < ActiveRecord::Base
belongs_to :user
end
Now I ca...
Carib asked 7/10, 2009 at 5:14
2
Solved
For performance reason, I use as often as possible the only() keyword when writing up a mongoid query in order to specify the fields I want to load.
The usual suspect, is for instance when I want ...
Quincey asked 7/5, 2012 at 8:29
2
Solved
I have database tables that look like this:
A Task can be mapped to a Module, or not mapped at all (0...1). I'm using Entity Framework database-first, and when I generated the model from the dat...
Gamaliel asked 11/4, 2012 at 15:31
3
Solved
I have 2 models - Teacher and Subject. A want to connect them via Join table with name Qualification.
It looks like i do something wrong:
class Teacher < ActiveRecord::Base
has_and_belongs_to...
Pure asked 30/3, 2012 at 14:6
1
I'm currently using the find or create method to update an associated record which i use to store cached information, but I'm wondering if there's some simpler alternative method similar to build s...
Bekah asked 19/4, 2011 at 7:53
4
Solved
I have one Backbone model which has an attribute that is a reference to another Backbone model. For example, a Person has a reference to an Address object.
Person
FirstName
LastName
Address
St...
Ivon asked 4/6, 2011 at 1:27
2
Solved
I'm having a hard time figuring out how to association one of my models with multiple of another.
As it is now, I have:
class ModelA < ActiveRecord::Base
has_many :model_b
end
class ModelB &...
Afflatus asked 9/12, 2010 at 4:20
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