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Sequel::Plugins::PgArrayAssociations::PgArrayToManyAssociationReflection

The AssociationReflection subclass for pg_array_to_many associations.

Public Instance Methods

array_type() click to toggle source
# File lib/sequel/plugins/pg_array_associations.rb, line 180
def array_type
  cached_fetch(:array_type) do
    if (sch = self[:model].db_schema) && (s = sch[self[:key]]) && (t = s[:db_type])
      t
    else
      :integer
    end
  end
end
associated_object_keys() click to toggle source

An array containing the primary key for the associated model.

# File lib/sequel/plugins/pg_array_associations.rb, line 191
def associated_object_keys
  Array(primary_key)
end
can_have_associated_objects?(obj) click to toggle source

pg_array_to_many associations can only have associated objects if the array field is not nil or empty.

# File lib/sequel/plugins/pg_array_associations.rb, line 197
def can_have_associated_objects?(obj)
  v = obj.send(self[:key])
  v && !v.empty?
end
dataset_need_primary_key?() click to toggle source

pg_array_to_many associations do not need a primary key.

# File lib/sequel/plugins/pg_array_associations.rb, line 203
def dataset_need_primary_key?
  false
end
default_key() click to toggle source

Use a default key name of *_ids, for similarity to other association types that use *_id for single keys.

# File lib/sequel/plugins/pg_array_associations.rb, line 209
def default_key
  :"#{singularize(self[:name])}_ids"
end
eager_graph_limit_strategy(_) click to toggle source

Always use the ruby eager_graph limit strategy if association is limited.

# File lib/sequel/plugins/pg_array_associations.rb, line 214
def eager_graph_limit_strategy(_)
  :ruby if self[:limit]
end
eager_limit_strategy() click to toggle source

Always use the ruby eager limit strategy

# File lib/sequel/plugins/pg_array_associations.rb, line 219
def eager_limit_strategy
  cached_fetch(:_eager_limit_strategy) do
    :ruby if self[:limit]
  end
end
filter_by_associations_conditions_expression(obj) click to toggle source
# File lib/sequel/plugins/pg_array_associations.rb, line 251
def filter_by_associations_conditions_expression(obj)
  ds = filter_by_associations_conditions_dataset.where(filter_by_associations_conditions_subquery_conditions(obj))
  Sequel.function(:coalesce, Sequel.pg_array(filter_by_associations_conditions_key).overlaps(ds), Sequel::SQL::Constants::FALSE)
end
filter_by_associations_limit_strategy() click to toggle source

Don't use a filter by associations limit strategy

# File lib/sequel/plugins/pg_array_associations.rb, line 226
def filter_by_associations_limit_strategy
  nil
end
handle_silent_modification_failure?() click to toggle source

Handle silent failure of add/remove methods if raise_on_save_failure is false and save_after_modify is true.

# File lib/sequel/plugins/pg_array_associations.rb, line 232
def handle_silent_modification_failure?
  self[:raise_on_save_failure] == false && self[:save_after_modify]
end
predicate_key() click to toggle source

A qualified version of the associated primary key.

# File lib/sequel/plugins/pg_array_associations.rb, line 237
def predicate_key
  cached_fetch(:predicate_key){qualify_assoc(primary_key)}
end
primary_key() click to toggle source

The primary key of the associated model.

# File lib/sequel/plugins/pg_array_associations.rb, line 242
def primary_key
  cached_fetch(:primary_key){associated_class.primary_key || raise(Error, "no primary key specified for #{associated_class.inspect}")}
end
primary_key_method() click to toggle source

The method to call to get value of the primary key of the associated model.

# File lib/sequel/plugins/pg_array_associations.rb, line 247
def primary_key_method
  cached_fetch(:primary_key_method){primary_key}
end

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