1 files changed, 39 insertions, 0 deletions
diff --git a/app/graphql/resolvers/deployments_resolver.rb b/app/graphql/resolvers/deployments_resolver.rb
new file mode 100644
index 00000000000..341d23c2ccb
--- /dev/null
+++ b/app/graphql/resolvers/deployments_resolver.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+module Resolvers
+  class DeploymentsResolver < BaseResolver
+    argument :statuses, [Types::DeploymentStatusEnum],
+             description: 'Statuses of the deployments.',
+             required: false,
+             as: :status
+
+    argument :order_by, Types::DeploymentsOrderByInputType,
+             description: 'Order by a specified field.',
+             required: false
+
+    type Types::DeploymentType, null: true
+
+    alias_method :environment, :object
+
+    def resolve(**args)
+      return unless environment.present? && environment.is_a?(::Environment)
+
+      args = transform_args_for_finder(**args)
+
+      # GraphQL BatchLoader shouldn't be used here because pagination query will be inefficient
+      # that fetches thousands of rows before limiting and offsetting.
+      DeploymentsFinder.new(environment: environment.id, **args).execute
+    end
+
+    private
+
+    def transform_args_for_finder(**args)
+      if (order_by = args.delete(:order_by))
+        order_by = order_by.to_h.map { |k, v| { order_by: k.to_s, sort: v } }.first
+        args.merge!(order_by)
+      end
+
+      args
+    end
+  end
+end