module Mongoid::Attributes::Processing
This module contains the behavior for processing attributes.
Public Instance Methods
Process the provided attributes casting them to their proper values if a field exists for them on the document. This will be limited to only the attributes provided in the suppied Hash
so that no extra nil values get put into the document’s attributes.
@example Process the attributes.
person.process_attributes(:title => "sir", :age => 40)
@param [ Hash ] attrs The attributes to set.
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 19 def process_attributes(attrs = nil) attrs ||= {} if !attrs.empty? attrs = sanitize_for_mass_assignment(attrs) attrs.each_pair do |key, value| next if pending_attribute?(key, value) process_attribute(key, value) end end yield self if block_given? process_pending end
Private Instance Methods
If the key provided is the name of a relation or a nested attribute, we need to wait until all other attributes are set before processing these.
@example Is the attribute pending?
document.pending_attribute?(:name, "Durran")
@param [ Symbol
] key The name of the attribute. @param [ Object
] value The value of the attribute.
@return [ true, false ] True if pending, false if not.
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 47 def pending_attribute?(key, value) name = key.to_s if relations.has_key?(name) pending_relations[name] = value return true end if nested_attributes.has_key?(name) pending_nested[name] = value return true end return false end
Get all the pending nested attributes that need to be set.
@example Get the pending nested attributes.
document.pending_nested
@return [ Hash ] The pending nested attributes in key/value pairs.
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 80 def pending_nested @pending_nested ||= {} end
Get all the pending relations that need to be set.
@example Get the pending relations.
document.pending_relations
@return [ Hash ] The pending relations in key/value pairs.
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 68 def pending_relations @pending_relations ||= {} end
If the attribute is dynamic, add a field for it with a type of object and then either way set the value.
@example Process the attribute.
document.process_attribute(name, value)
@param [ Symbol
] name The name of the field. @param [ Object
] value The value of the field.
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 94 def process_attribute(name, value) responds = respond_to?("#{name}=") raise Errors::UnknownAttribute.new(self.class, name) unless responds send("#{name}=", value) end
Process all the pending nested attributes that needed to wait until ids were set to fire off.
@example Process the nested attributes.
document.process_nested
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 107 def process_nested pending_nested.each_pair do |name, value| send("#{name}=", value) end end
Process all the pending items, then clear them out.
@example Process the pending items.
document.process_pending
@param [ Hash ] options The mass assignment options.
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 121 def process_pending process_nested and process_relations pending_nested.clear and pending_relations.clear end
Process all the pending relations that needed to wait until ids were set to fire off.
@example Process the relations.
document.process_relations
@param [ Hash ] options The mass assignment options.
@since 2.0.0.rc.7
# File lib/mongoid/attributes/processing.rb, line 135 def process_relations pending_relations.each_pair do |name, value| metadata = relations[name] if value.is_a?(Hash) metadata.nested_builder(value, {}).build(self) else send("#{name}=", value) end end end