named-scope

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How do you scope ActiveRecord associations in Rails 3?

I have a Rails 3 project.With Rails 3 came Arel and the ability to reuse one sc开发者_开发百科ope to build another.I am wondering if there is a way to use scopes when defining a relationship (e.g. a \[详细]

2022-12-22 05:06 分类：问答
aggregate conditional has_many rails association

I\'m not sure if this is feasible or even preferable But I\'d like to build a has_many relationship or a conditional named_scope type relationship to ease my pain into one simple relationship instead[详细]

2022-12-21 17:37 分类：问答
Custom ActiveRecord finder invoking named scopes?

I have a custom finder defined below: class ContainerGateIn << ActiveRecord::Base ... def self.search(text)[详细]

2022-12-19 13:54 分类：问答
Keeping named_scope Extensions DRY

In Rails, you can add a block after a named_scope for additional, context-sensitive methods like so: class User < ActiveRecord::Base[详细]

2022-12-19 06:42 分类：问答
How to return boolean result in named_scope?

named_scope :incomplete?, lambda { |user_id, todo_id| { :select => 1, :conditions => [ \"#{user_id} not in (select user_todos.user_id from user_todos) and[详细]

2022-12-17 13:04 分类：问答
Named_scope in rails unique records?

Is it possible to have named_scope return records unique for a certain column? e.g named_scope :unique_styles, :order =>\"title desc\", :limit => 3[详细]

2022-12-17 09:47 分类：问答
Nested named scopes with joins (explosive error)

So I have an ActiveRecord class with a couple different named scopes that include join parameters.While running a report, I happen to have a situation where one gets called inside of the other:[详细]

2022-12-17 09:16 分类：问答
rails convert class methods to named scope

Rails newbie here. I\'m trying to get some class methods into named_scopes. My application structure is similar to a blog application with user comments. Each comment model has a score attribute deter[详细]

2022-12-10 11:55 分类：问答
default_scope with :joins and :select

I tried to define a default_scope in the following way: default_scope :joins => :product, :select => \"catalog_products.*, products.*\"[详细]

2022-12-10 06:28 分类：问答
basic modification of default model output with scope

I find myself doing the same things over and over开发者_运维技巧 again just to make one small modification to standard model output.I have a series of tables that I store information about products, e[详细]

2022-12-09 04:26 分类：问答