Class: ActiveRecord::Reflection::AggregateReflection
Relationships & Source Files | |
Super Chains via Extension / Inclusion / Inheritance | |
Class Chain:
|
|
Instance Chain:
|
|
Inherits: |
ActiveRecord::Reflection::MacroReflection
|
Defined in: | activerecord/lib/active_record/reflection.rb |
Overview
Holds all the metadata about an aggregation as it was specified in the Active Record class.
Class Method Summary
Instance Attribute Summary
MacroReflection
- Inherited
#active_record, #autosave=, | |
#name | Returns the name of the macro. |
#options | Returns the hash of options used for the macro. |
#scope, #plural_name |
AbstractReflection
- Inherited
#counter_must_be_updated_by_has_many?, | |
#has_active_cached_counter? | Returns whether this association has a counter cache and its column values were backfilled (and so it is used internally by methods like |
#has_cached_counter? | Returns whether this association has a counter cache. |
#inverse_updates_counter_cache? | |
#inverse_updates_counter_in_memory?, #strict_loading?, #through_reflection? |
Instance Method Summary
MacroReflection
- Inherited
#== | Returns |
#compute_class, | |
#klass | Returns the class for the macro. |
#scope_for, #derive_class_name, #normalize_options, #_klass |
AbstractReflection
- Inherited
#alias_candidate, | |
#build_association | Returns a new, unsaved instance of the associated class. |
#build_scope, #chain, #check_validity_of_inverse!, | |
#class_name | Returns the class name for the macro. |
#constraints, #counter_cache_column, #inverse_of, | |
#inverse_which_updates_counter_cache | We need to avoid the following situation: |
#join_scope, #join_scopes, #klass_join_scope, | |
#scopes | Returns a list of scopes that should be applied for this |
#strict_loading_violation_message, #table_name, | |
#actual_source_reflection | FIXME: this is a horrible name. |
#ensure_option_not_given_as_class!, #primary_key |
Constructor Details
This class inherits a constructor from ActiveRecord::Reflection::MacroReflection
Instance Method Details
#mapping
[ GitHub ]# File 'activerecord/lib/active_record/reflection.rb', line 481
def mapping mapping = [:mapping] || [name, name] mapping.first.is_a?(Array) ? mapping : [mapping] end