Class: Ecoportal::API::GraphQL::Logic::Connection

Inherits:
Logic::BaseModel
  • Object
show all
Includes:
Enumerable
Defined in:
lib/ecoportal/api/graphql/logic/connection.rb

Defined Under Namespace

Classes: GenericNode

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.nodes_of(klass) ⇒ Object

Bind a connection subclass to its concrete node type.

The base embeds_many :nodes, klass: :node_class builds a SINGLE dynamic CollectionModel ("nodes::node_class") that every subclass inherits and shares. The v2 collection layer memoizes the resolved class on that shared collection (items_klass.rb:62-63), so the FIRST connection instantiated in a process poisons every other connection's instance nodes typing (e.g. a MinimalDashboard connection returning AuthLog nodes). Declaring embeds_many :nodes per subclass with the concrete class gives each subclass its OWN collection ("nodes::Model::X") bound to a real Class — no shared symbol, nothing to memoize wrongly.

Use nodes_of Model::X in a subclass instead of class_resolver :node_class, Model::X.



33
34
35
36
 
# File 'lib/ecoportal/api/graphql/logic/connection.rb', line 33

def self.nodes_of(klass)
  class_resolver :node_class, klass
  embeds_many :nodes, klass: klass
end

Instance Method Details

#each(&block) ⇒ Object 



42
43
44
45
46
 
# File 'lib/ecoportal/api/graphql/logic/connection.rb', line 42

def each(&block)
  return to_enum(:each) unless block

  nodes.each(&block)
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


38
39
40
 
# File 'lib/ecoportal/api/graphql/logic/connection.rb', line 38

def empty?
  count < 1
end