module Authorization

In order to use this mixin, you'll need to define roles by overriding the following functions:

User#has_role?(role)

Return true or false depending on the roles (strings) passed in.

Model#accepts_role?(role, user)

Return true or false depending on the roles (strings) this particular user has for
this particular model object.

See www.writertopia.com/developers/authorization

Provides the appearance of dynamically generated methods on the roles database.

Examples:

user.is_member?                     --> Returns true if user has any role of "member"
user.is_member_of? this_workshop    --> Returns true/false. Must have authorizable object after query.
user.is_eligible_for [this_award]   --> Gives user the role "eligible" for "this_award"
user.is_moderator                   --> Gives user the general role "moderator" (not tied to any class or object)
user.is_candidate_of_what           --> Returns array of objects for which this user is a "candidate"

model.has_members                   --> Returns array of users which have role "member" on that model
model.has_members?                  --> Returns true/false