class GraphQL::Schema::List
Represents a list type in the schema. Wraps a {Schema::Member} as a list type. @see {Schema::Member::TypeSystemHelpers#to_list_type}
Public Instance Methods
coerce_input(value, ctx)
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# File lib/graphql/schema/list.rb, line 45 def coerce_input(value, ctx) if value.nil? nil else coerced = ensure_array(value).map { |item| item.nil? ? item : of_type.coerce_input(item, ctx) } ctx.schema.after_any_lazies(coerced, &:itself) end end
coerce_result(value, ctx)
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# File lib/graphql/schema/list.rb, line 41 def coerce_result(value, ctx) value.map { |i| i.nil? ? nil : of_type.coerce_result(i, ctx) } end
description()
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Also for implementing introspection
# File lib/graphql/schema/list.rb, line 37 def description nil end
graphql_name()
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This is for introspection, where it's expected the name will be `null`
# File lib/graphql/schema/list.rb, line 32 def graphql_name nil end
kind()
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@return [GraphQL::TypeKinds::LIST]
# File lib/graphql/schema/list.rb, line 18 def kind GraphQL::TypeKinds::LIST end
list?()
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@return [true]
# File lib/graphql/schema/list.rb, line 23 def list? true end
to_graphql()
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# File lib/graphql/schema/list.rb, line 13 def to_graphql @of_type.graphql_definition(silence_deprecation_warning: true).to_list_type end
to_type_signature()
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# File lib/graphql/schema/list.rb, line 27 def to_type_signature "[#{@of_type.to_type_signature}]" end
validate_non_null_input(value, ctx, max_errors: nil)
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# File lib/graphql/schema/list.rb, line 54 def validate_non_null_input(value, ctx, max_errors: nil) result = GraphQL::Query::InputValidationResult.new ensure_array(value).each_with_index do |item, index| item_result = of_type.validate_input(item, ctx) unless item_result.valid? if max_errors if max_errors == 0 add_max_errros_reached_message(result) break end max_errors -= 1 end result.merge_result!(index, item_result) end end result.valid? ? nil : result end
Private Instance Methods
add_max_errros_reached_message(result)
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# File lib/graphql/schema/list.rb, line 85 def add_max_errros_reached_message(result) message = "Too many errors processing list variable, max validation error limit reached. Execution aborted" item_result = GraphQL::Query::InputValidationResult.from_problem(message) result.merge_result!(nil, item_result) end
ensure_array(value)
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# File lib/graphql/schema/list.rb, line 76 def ensure_array(value) # `Array({ a: 1 })` makes `[[:a, 1]]`, so do it manually if value.is_a?(Array) value else [value] end end