Class: GraphQL::Relay::Mutation
- Inherits:
-
Object
- Object
- GraphQL::Relay::Mutation
- Includes:
- Define::InstanceDefinable
- Defined in:
- lib/graphql/relay/mutation.rb
Overview
Define a Relay mutation:
- give it a name (used for derived inputs & outputs)
- declare its inputs
- declare its outputs
- declare the mutation procedure
‘resolve` should return a hash with a key for each of the `return_field`s
Inputs may also contain a ‘clientMutationId`
Defined Under Namespace
Classes: Result
Instance Method Summary collapse
- #field ⇒ Object
-
#initialize ⇒ Mutation
constructor
A new instance of Mutation.
- #input_type ⇒ Object
- #resolve=(proc) ⇒ Object
- #return_type ⇒ Object
Methods included from Define::InstanceDefinable
#define, #definition_proc=, included, #metadata
Constructor Details
#initialize ⇒ Mutation
Returns a new instance of Mutation.
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# File 'lib/graphql/relay/mutation.rb', line 64 def initialize @fields = {} @arguments = {} end |
Instance Method Details
#field ⇒ Object
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# File 'lib/graphql/relay/mutation.rb', line 74 def field @field ||= begin ensure_defined relay_mutation = self field_resolve_proc = -> (obj, args, ctx){ results_hash = @resolve_proc.call(args[:input], ctx) Result.new(arguments: args, result: results_hash) } GraphQL::Field.define do type(relay_mutation.return_type) description(relay_mutation.description) argument :input, !relay_mutation.input_type resolve(field_resolve_proc) mutation(relay_mutation) end end end |
#input_type ⇒ Object
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# File 'lib/graphql/relay/mutation.rb', line 108 def input_type @input_type ||= begin ensure_defined relay_mutation = self GraphQL::InputObjectType.define do name("#{relay_mutation.name}Input") description("Autogenerated input type of #{relay_mutation.name}") input_field :clientMutationId, types.String, "A unique identifier for the client performing the mutation." relay_mutation.input_fields.each do |input_field_name, field_obj| input_field input_field_name, field_obj.type, field_obj.description, default_value: field_obj.default_value end mutation(relay_mutation) end end end |
#resolve=(proc) ⇒ Object
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# File 'lib/graphql/relay/mutation.rb', line 69 def resolve=(proc) ensure_defined @resolve_proc = proc end |
#return_type ⇒ Object
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# File 'lib/graphql/relay/mutation.rb', line 92 def return_type @return_type ||= begin ensure_defined relay_mutation = self GraphQL::ObjectType.define do name("#{relay_mutation.name}Payload") description("Autogenerated return type of #{relay_mutation.name}") field :clientMutationId, types.String, "A unique identifier for the client performing the mutation." relay_mutation.return_fields.each do |name, field_obj| field name, field: field_obj end mutation(relay_mutation) end end end |