Sha256: 21b4c305296c74593ed69aaa5968c5f164ea45d547da90684dbe2a0600472db6
Contents?: true
Size: 1.89 KB
Versions: 49
Compression:
Stored size: 1.89 KB
Contents
# This extension is needed because of Para's params input parsing which creates
# empty placeholder records for nested attributes before their params are
# assigned.
#
# This patch hooks into Rails nested attributes logic to clean all placeholder
# data during the params assignation process.
#
module Para
module Ext
module ActiveRecord
module NestedAttributes
# Handle rejected nested records that have a fake id, which means that
# the resource was nevertheless created by Para during input params
# parsing. Therefore, we clean those records when they're rejected.
#
def call_reject_if(association_name, attributes)
super.tap do |rejected|
if rejected && attributes['id'].to_s.match(/\A__/)
records = association(association_name).target
if ::ActiveRecord::Base === records
records.destroy
elsif (record = records.find { |res| res.id == attributes['id'] })
records.delete(record)
end
end
end
end
end
module NestedAttributesClassMethods
# Override default :reject_all proc to handle fake ids as empty keys,
# avoiding the model to be created with only its fake id.
PARA_REJECT_ALL_BLANK_PROC = proc { |attributes|
attributes.all? { |key, value|
(key == 'id' && value.to_s.match(/\A__/)) || key == '_destroy' || value.blank?
}
}
# Intercept the `reject_if: :all_blank` option to also consider fake
# ids as blank fields and avoid empty params assignation
#
def accepts_nested_attributes_for(*attr_names)
options = attr_names.extract_options!
options[:reject_if] = PARA_REJECT_ALL_BLANK_PROC if options[:reject_if] == :all_blank
super(*attr_names, options)
end
end
end
end
end
Version data entries
49 entries across 49 versions & 1 rubygems