kotovalexarian-likes-github
/
activerecord-hackery--ransack
mirror of https://github.com/activerecord-hackery/ransack.git
1
0
Fork 0
Code Releases Activity

README: Add an example of attribute chaining to the Associations 

section, and improve the “Grouping queries by OR instead of AND”
section.

[skip ci]
This commit is contained in:
Jon Atack 2014-09-06 01:30:37 +02:00
parent a669b976d6
commit bf4294eae1
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
README.md
View File

@ -246,7 +246,7 @@ class Supervisor < ActiveRecord::Base
belongs_to :department
has_many :employees
# has attribute last_name:string
# has attributes first_name:string and last_name:string
end
```
@ -271,8 +271,8 @@ end
<%= f.label :department_title_cont %>
<%= f.search_field :department_title_cont %>
<%= f.label :employees_last_name_cont %>
<%= f.search_field :employees_last_name_cont %>
<%= f.label :employees_first_name_or_employees_last_name_cont %>
<%= f.search_field :employees_first_name_or_employees_last_name_cont %>
<%= f.submit "search" %>
<% end %>
@ -409,7 +409,9 @@ Employee.search({ salary_gt: 100_000 }, { auth_object: current_user })
### Grouping queries by OR instead of AND
The default `AND` grouping can be changed to `OR` by adding `m: 'or'` to the
query hash. In the Rails console:
query hash.
For example, in the Rails console:
```ruby
artists = Artist.search(name_cont: 'foo', style_cont: 'bar', m: 'or')
@ -424,7 +426,7 @@ artists.result.to_sql
OR \"artists\".\"style\" ILIKE '%bar%'))"
```
Try it with and without `m: 'or'` in the query hash. Notice that the combinator becomes `or` instead of the default `and`, and the SQL query becomes `WHERE...OR` instead of `WHERE...AND`.
The combinator becomes `or` instead of the default `and`, and the SQL query becomes `WHERE...OR` instead of `WHERE...AND`.
This works with associations as well. Imagine an Artist model that has many
Memberships, and many Musicians through Memberships: