Class: ActiveRecord::Reflection::MacroReflection
- Inherits:
-
AbstractReflection
- Object
- AbstractReflection
- ActiveRecord::Reflection::MacroReflection
- Defined in:
- lib/active_record/reflection.rb
Overview
Base class for AggregateReflection and AssociationReflection. Objects of AggregateReflection and AssociationReflection are returned by the Reflection::ClassMethods.
Direct Known Subclasses
Instance Attribute Summary collapse
-
#active_record ⇒ Object
readonly
Returns the value of attribute active_record.
-
#name ⇒ Object
readonly
Returns the name of the macro.
-
#options ⇒ Object
readonly
Returns the hash of options used for the macro.
-
#plural_name ⇒ Object
readonly
:nodoc:.
-
#scope ⇒ Object
readonly
Returns the value of attribute scope.
Instance Method Summary collapse
-
#==(other_aggregation) ⇒ Object
Returns
true
ifself
andother_aggregation
have the samename
attribute,active_record
attribute, andother_aggregation
has an options hash assigned to it. - #autosave=(autosave) ⇒ Object
- #compute_class(name) ⇒ Object
-
#initialize(name, scope, options, active_record) ⇒ MacroReflection
constructor
A new instance of MacroReflection.
-
#klass ⇒ Object
Returns the class for the macro.
- #scope_for(relation, owner = nil) ⇒ Object
Methods inherited from AbstractReflection
#alias_candidate, #build_association, #build_scope, #chain, #check_validity_of_inverse!, #class_name, #constraints, #counter_cache_column, #counter_must_be_updated_by_has_many?, #has_cached_counter?, #inverse_of, #inverse_updates_counter_in_memory?, #inverse_which_updates_counter_cache, #join_scope, #join_scopes, #klass_join_scope, #scopes, #strict_loading?, #table_name, #through_reflection?
Constructor Details
#initialize(name, scope, options, active_record) ⇒ MacroReflection
Returns a new instance of MacroReflection.
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# File 'lib/active_record/reflection.rb', line 342 def initialize(name, scope, , active_record) @name = name @scope = scope @options = @active_record = active_record @klass = [:anonymous_class] @plural_name = active_record.pluralize_table_names ? name.to_s.pluralize : name.to_s end |
Instance Attribute Details
#active_record ⇒ Object (readonly)
Returns the value of attribute active_record.
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# File 'lib/active_record/reflection.rb', line 338 def active_record @active_record end |
#name ⇒ Object (readonly)
Returns the name of the macro.
composed_of :balance, class_name: 'Money'
returns :balance
has_many :clients
returns :clients
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# File 'lib/active_record/reflection.rb', line 328 def name @name end |
#options ⇒ Object (readonly)
Returns the hash of options used for the macro.
composed_of :balance, class_name: 'Money'
returns { class_name: "Money" }
has_many :clients
returns {}
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# File 'lib/active_record/reflection.rb', line 336 def @options end |
#plural_name ⇒ Object (readonly)
:nodoc:
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# File 'lib/active_record/reflection.rb', line 340 def plural_name @plural_name end |
#scope ⇒ Object (readonly)
Returns the value of attribute scope.
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# File 'lib/active_record/reflection.rb', line 330 def scope @scope end |
Instance Method Details
#==(other_aggregation) ⇒ Object
Returns true
if self
and other_aggregation
have the same name
attribute, active_record
attribute, and other_aggregation
has an options hash assigned to it.
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# File 'lib/active_record/reflection.rb', line 385 def ==(other_aggregation) super || other_aggregation.kind_of?(self.class) && name == other_aggregation.name && !other_aggregation..nil? && active_record == other_aggregation.active_record end |
#autosave=(autosave) ⇒ Object
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# File 'lib/active_record/reflection.rb', line 352 def autosave=(autosave) @options[:autosave] = autosave parent_reflection = self.parent_reflection if parent_reflection parent_reflection.autosave = autosave end end |
#compute_class(name) ⇒ Object
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# File 'lib/active_record/reflection.rb', line 379 def compute_class(name) name.constantize end |
#klass ⇒ Object
Returns the class for the macro.
composed_of :balance, class_name: 'Money'
returns the Money class has_many :clients
returns the Client class
class Company < ActiveRecord::Base
has_many :clients
end
Company.reflect_on_association(:clients).klass
# => Client
Note: Do not call klass.new
or klass.create
to instantiate a new association object. Use build_association
or create_association
instead. This allows plugins to hook into association object creation.
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# File 'lib/active_record/reflection.rb', line 375 def klass @klass ||= compute_class(class_name) end |
#scope_for(relation, owner = nil) ⇒ Object
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# File 'lib/active_record/reflection.rb', line 393 def scope_for(relation, owner = nil) relation.instance_exec(owner, &scope) || relation end |