Sha256: 1e86d542f13eb578ecf1efe0558f54d974301011447eaa8a872206813368c6d9
Contents?: true
Size: 1.55 KB
Versions: 7
Compression:
Stored size: 1.55 KB
Contents
class Tag < ActiveRecord::Base
class Validator < ActiveModel::Validator
def validate(record)
validate_presence! record
validate_uniqueness! record
end
def validate_presence!(record)
if record.name.blank?
msg = "Your tag can't be blank."
record.errors['name'] << msg
elsif record.name.length < 1
msg = "Your tag needs to be at least 1 character long."
record.errors['name'] << msg
end
end
def validate_uniqueness!(record)
tag = Tag.where('tags.name = ?', record.name).first
unless tag.nil?
msg = "You already have a tag with this name: #{tag.name}"
record.errors['uniqueness'] << msg
return
end
end
end
include PgSearch
include ActiveModel::Validations
validates_with Tag::Validator
pg_search_scope :search_by_name,
against: :name,
:using => {
:tsearch => {:prefix => true}
}
def ==(other)
self.class.table_name == other.class.table_name && self.id == other.id
end
def posts
post_scope = ->(tag) { where '? = ANY (posts.tags)', tag.id }
options = {}
reflection = ActiveRecord::Reflection::HasManyReflection.new(:posts, post_scope, options, self.class)
association = PostsAssociation.new(self, reflection)
@posts ||= ActiveRecord::Associations::CollectionProxy.new(Post, association)
end
private
class PostsAssociation < ActiveRecord::Associations::HasManyAssociation
def scope(opts = {})
Post.where('? = ANY (posts.tags)', owner.id).order('published_at DESC')
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems