Optimize task list performance

Author: joshsmith

lib/code_corps_web/controllers/task_list_controller.ex

@@ -28,7 +28,7 @@ defmodule CodeCorpsWeb.TaskListController do
     end
   end
 
-  @preloads [:tasks]
+  @preloads [tasks: [:github_issue, :github_pull_request, :task_skills, :user, :user_task]]
 
   def preload(data) do
     Repo.preload(data, @preloads)

lib/code_corps_web/views/task_in_list_view.ex

@@ -0,0 +1,21 @@
+defmodule CodeCorpsWeb.TaskInListView do
+  @moduledoc false
+  use CodeCorpsWeb, :view
+  use JaSerializer.PhoenixView
+
+  def type, do: "task"
+
+  attributes [
+    :archived, :created_at, :number, :order, :status, :title
+  ]
+
+  has_one :github_issue, type: "github-issue", field: :github_issue_id
+  has_one :github_pull_request, serializer: CodeCorpsWeb.GithubPullRequestView, identifiers: :always
+  has_one :github_repo, type: "github-repo", field: :github_repo_id
+  has_one :project, type: "project", field: :project_id
+  has_one :task_list, type: "task-list", field: :task_list_id
+  has_one :user, type: "user", field: :user_id
+  has_one :user_task, serializer: CodeCorpsWeb.UserTaskView, include: true
+
+  has_many :task_skills, serializer: CodeCorpsWeb.TaskSkillView, include: true
+end

lib/code_corps_web/views/task_list_view.ex

@@ -7,5 +7,5 @@ defmodule CodeCorpsWeb.TaskListView do
 
   has_one :project, type: "project", field: :project_id
 
-  has_many :tasks, serializer: CodeCorpsWeb.TaskView, identifiers: :always
+  has_many :tasks, serializer: CodeCorpsWeb.TaskInListView, include: true
 end