Better off saying !roles.find_by_name("admin").blank?
Saves on SQL
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On 07/04/2010, at 11:40 PM, Sharagoz <[email protected]> wrote:
user1.roles returns an array of roles.
The array class has a function "include?(obj)" that returns true or
false.
Something like this should work:
user1.roles.include?(Role.find_by_name('admin'))
Named scopes are not ment for stuff like this.
You can create a function on the user model "is_admin?" for the code
above. That way if how an admin is defined changes, you only need to
update the code in one place.
On Apr 7, 1:38 pm, Tom Mac <[email protected]> wrote:
Hi
I have the models roles, users and user_roles. The relationship
among
them is
user.r
-------
user has_many user_roles
user has_many roles, :through => :user_roles
role.rb
=======
role has_many user_roles
role has_many users, :through => :user_roles
user_role.rb
========
belongs_to :user
belongs_to :role
Suppose a login user1 has roles [admin, staff] And login user2
has
only one role say [participant] Now how can I check the cases
1)a login user is an admin or staff
2) a login user has_role participant?
And also I would like to know whether this can be written using
named scopes.(I am totally new to named scopes)
Thanks in advance
Tom
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