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# +grant_on+ accepts:
# * Nothing (always grants)
# * A block which evaluates to boolean (recieves the object as parameter)
# * A block with a hash composed of methods to run on the target object with
# expected values (+:votes => 5+ for instance).
#
# +grant_on+ can have a +:to+ method name, which called over the target object
# should retrieve the object to badge (could be +:user+, +:self+, +:follower+,
# etc). If it's not defined merit will apply the badge to the user who
# triggered the action (:action_user by default). If it's :itself, it badges
# the created object (new user for instance).
#
# The :temporary option indicates that if the condition doesn't hold but the
# badge is granted, then it's removed. It's false by default (badges are kept
# forever).
module Merit
class BadgeRules
include Merit::BadgeRulesMethods
def initialize
# If it creates user, grant badge
# Should be "current_user" after registration for badge to be granted.
# Example rule with block with no parameters
grant_on 'users#create', :badge => 'just-registered', :to => :itself do
Date.today > 1.year.ago.to_date
end
# Example rule for multiple badge granting
grant_on 'users#index', :badge => 'gossip', :multiple => true
# If it has 10 comments, grant commenter-10 badge
grant_on 'comments#create', :badge => 'commenter', :level => 10 do |comment|
comment.user.comments.count >= 10
end
# If it has at least 10 votes, grant relevant-commenter badge
grant_on 'comments#vote', :badge => 'relevant-commenter', :to => :user do |comment|
comment.votes >= 10
end
# Changes his name by one wider than 4 chars (arbitrary ruby code and custom model_name)
# This badge is temporary (user may lose it)
grant_on 'registrations#update', :badge => 'autobiographer', :temporary => true, :model_name => 'User' do |user|
user.name.length > 4
end
end
end
end
Version data entries
32 entries across 30 versions & 1 rubygems