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Contents
module FriendlyId
module FinderMethods
# Finds a record using the given id.
#
# If the id is "unfriendly", it will call the original find method.
# If the id is a numeric string like '123' it will first look for a friendly
# id matching '123' and then fall back to looking for a record with the
# numeric id '123'.
#
# Since FriendlyId 5.0, if the id is a numeric string like '123-foo' it
# will *only* search by friendly id and not fall back to the regular find
# method.
#
# If you want to search only by the friendly id, use {#find_by_friendly_id}.
# @raise ActiveRecord::RecordNotFound
def find(*args)
id = args.first
return super if args.count != 1 || id.unfriendly_id?
first_by_friendly_id(id).tap {|result| return result unless result.nil?}
return super if potential_primary_key?(id)
raise ActiveRecord::RecordNotFound
end
# Returns true if a record with the given id exists.
def exists?(conditions = :none)
return super unless conditions.friendly_id?
exists_by_friendly_id?(conditions)
end
# Finds exclusively by the friendly id, completely bypassing original
# `find`.
# @raise ActiveRecord::RecordNotFound
def find_by_friendly_id(id)
first_by_friendly_id(id) or raise ActiveRecord::RecordNotFound
end
def exists_by_friendly_id?(id)
where(friendly_id_config.query_field => id).exists?
end
private
def potential_primary_key?(id)
case primary_key_type
when :integer
Integer(id, 10) rescue false
when :uuid
id.match /\A[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\z/
else
true
end
end
def first_by_friendly_id(id)
where(friendly_id_config.query_field => id).first
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems