Update TodoMVC example for Ecto 2.0

Author: seanabrahams

examples/todo/config/config.exs

@@ -14,6 +14,9 @@ config :todo, Todo.Endpoint,
   pubsub: [name: Todo.PubSub,
            adapter: Phoenix.PubSub.PG2]
 
+# Configure ecto repo
+config :todo, ecto_repos: [Todo.Repo]
+
 # Configures Elixir's Logger
 config :logger, :console,
   format: "$time $metadata[$level] $message\n",

examples/todo/mix.lock

@@ -1,18 +1,18 @@
 %{"connection": {:hex, :connection, "1.0.3", "3145f7416be3df248a4935f24e3221dc467c1e3a158d62015b35bd54da365786", [:mix], []},
   "cowboy": {:hex, :cowboy, "1.0.4", "a324a8df9f2316c833a470d918aaf73ae894278b8aa6226ce7a9bf699388f878", [:rebar, :make], [{:cowlib, "~> 1.0.0", [hex: :cowlib, optional: false]}, {:ranch, "~> 1.0", [hex: :ranch, optional: false]}]},
   "cowlib": {:hex, :cowlib, "1.0.2", "9d769a1d062c9c3ac753096f868ca121e2730b9a377de23dec0f7e08b1df84ee", [:make], []},
-  "db_connection": {:hex, :db_connection, "1.0.0-rc.3", "d9ceb670fe300271140af46d357b669983cd16bc0d01206d7d3222dde56cf038", [:mix], [{:sbroker, "~> 1.0.0-beta.3", [hex: :sbroker, optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: true]}, {:connection, "~> 1.0.2", [hex: :connection, optional: false]}]},
+  "db_connection": {:hex, :db_connection, "1.0.0-rc.3", "d9ceb670fe300271140af46d357b669983cd16bc0d01206d7d3222dde56cf038", [:mix], [{:connection, "~> 1.0.2", [hex: :connection, optional: false]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: true]}, {:sbroker, "~> 1.0.0-beta.3", [hex: :sbroker, optional: true]}]},
   "decimal": {:hex, :decimal, "1.1.2", "79a769d4657b2d537b51ef3c02d29ab7141d2b486b516c109642d453ee08e00c", [:mix], []},
-  "ecto": {:hex, :ecto, "2.0.2", "b02331c1f20bbe944dbd33c8ecd8f1ccffecc02e344c4471a891baf3a25f5406", [:mix], [{:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: true]}, {:sbroker, "~> 1.0-beta", [hex: :sbroker, optional: true]}, {:mariaex, "~> 0.7.7", [hex: :mariaex, optional: true]}, {:postgrex, "~> 0.11.2", [hex: :postgrex, optional: true]}, {:db_connection, "~> 1.0-rc.2", [hex: :db_connection, optional: true]}, {:decimal, "~> 1.0", [hex: :decimal, optional: false]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: false]}]},
+  "ecto": {:hex, :ecto, "2.0.2", "b02331c1f20bbe944dbd33c8ecd8f1ccffecc02e344c4471a891baf3a25f5406", [:mix], [{:db_connection, "~> 1.0-rc.2", [hex: :db_connection, optional: true]}, {:decimal, "~> 1.0", [hex: :decimal, optional: false]}, {:mariaex, "~> 0.7.7", [hex: :mariaex, optional: true]}, {:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: false]}, {:postgrex, "~> 0.11.2", [hex: :postgrex, optional: true]}, {:sbroker, "~> 1.0-beta", [hex: :sbroker, optional: true]}]},
   "fs": {:hex, :fs, "0.9.2", "ed17036c26c3f70ac49781ed9220a50c36775c6ca2cf8182d123b6566e49ec59", [:rebar], []},
   "graphql": {:hex, :graphql, "0.3.1", "d3bb5467877456cc2b33debc75407e9216567b10e35e83d5195e2d51e835e8c7", [:mix], []},
-  "graphql_relay": {:hex, :graphql_relay, "0.5.0", "8ea16397d4dc4cc0d7bf8d47df0d4d8ad2710e59ddda78fcb581b90352b48159", [:mix], [{:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: false]}, {:graphql, "~> 0.3", [hex: :graphql, optional: false]}]},
-  "phoenix": {:hex, :phoenix, "1.1.6", "7bf19002669c8f692f5a9c8d30dab7b49f3dc56228d5bde92a12fb426b4783c2", [:mix], [{:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: false]}, {:plug, "~> 1.0", [hex: :plug, optional: false]}, {:cowboy, "~> 1.0", [hex: :cowboy, optional: true]}]},
+  "graphql_relay": {:hex, :graphql_relay, "0.5.0", "8ea16397d4dc4cc0d7bf8d47df0d4d8ad2710e59ddda78fcb581b90352b48159", [:mix], [{:graphql, "~> 0.3", [hex: :graphql, optional: false]}, {:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: false]}]},
+  "phoenix": {:hex, :phoenix, "1.1.6", "7bf19002669c8f692f5a9c8d30dab7b49f3dc56228d5bde92a12fb426b4783c2", [:mix], [{:cowboy, "~> 1.0", [hex: :cowboy, optional: true]}, {:plug, "~> 1.0", [hex: :plug, optional: false]}, {:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: false]}]},
   "phoenix_ecto": {:hex, :phoenix_ecto, "3.0.0", "b947aaf03d076f5b1448f87828f22fb7710478ee38455c67cc3fe8e9a4dfd015", [:mix], [{:ecto, "~> 2.0.0-rc", [hex: :ecto, optional: false]}, {:phoenix_html, "~> 2.6", [hex: :phoenix_html, optional: true]}]},
   "phoenix_html": {:hex, :phoenix_html, "2.6.0", "b9f7e091eb3d908586d9634596478fb9e577ee033d76f4ff327a745569bdd2d8", [:mix], [{:plug, "~> 0.13 or ~> 1.0", [hex: :plug, optional: false]}]},
-  "phoenix_live_reload": {:hex, :phoenix_live_reload, "1.0.5", "829218c4152ba1e9848e2bf8e161fcde6b4ec679a516259442561d21fde68d0b", [:mix], [{:phoenix, "~> 1.0 or ~> 1.2-rc", [hex: :phoenix, optional: false]}, {:fs, "~> 0.9.1", [hex: :fs, optional: false]}]},
+  "phoenix_live_reload": {:hex, :phoenix_live_reload, "1.0.5", "829218c4152ba1e9848e2bf8e161fcde6b4ec679a516259442561d21fde68d0b", [:mix], [{:fs, "~> 0.9.1", [hex: :fs, optional: false]}, {:phoenix, "~> 1.0 or ~> 1.2-rc", [hex: :phoenix, optional: false]}]},
   "plug": {:hex, :plug, "1.1.6", "8927e4028433fcb859e000b9389ee9c37c80eb28378eeeea31b0273350bf668b", [:mix], [{:cowboy, "~> 1.0", [hex: :cowboy, optional: true]}]},
-  "plug_graphql": {:hex, :plug_graphql, "0.3.1", "8c3c91b889236620cea19606ab5b770c1c533242c92d97c23b9f359be4eb4c03", [:mix], [{:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: false]}, {:plug, "~> 0.14 or ~> 1.0", [hex: :plug, optional: false]}, {:graphql, "~> 0.3", [hex: :graphql, optional: false]}, {:cowboy, "~> 1.0", [hex: :cowboy, optional: false]}]},
+  "plug_graphql": {:hex, :plug_graphql, "0.3.1", "8c3c91b889236620cea19606ab5b770c1c533242c92d97c23b9f359be4eb4c03", [:mix], [{:cowboy, "~> 1.0", [hex: :cowboy, optional: false]}, {:graphql, "~> 0.3", [hex: :graphql, optional: false]}, {:plug, "~> 0.14 or ~> 1.0", [hex: :plug, optional: false]}, {:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: false]}]},
   "poison": {:hex, :poison, "2.2.0", "4763b69a8a77bd77d26f477d196428b741261a761257ff1cf92753a0d4d24a63", [:mix], []},
   "poolboy": {:hex, :poolboy, "1.5.1", "6b46163901cfd0a1b43d692657ed9d7e599853b3b21b95ae5ae0a777cf9b6ca8", [:rebar], []},
   "postgrex": {:hex, :postgrex, "0.11.2", "139755c1359d3c5c6d6e8b1ea72556d39e2746f61c6ddfb442813c91f53487e8", [:mix], [{:connection, "~> 1.0", [hex: :connection, optional: false]}, {:db_connection, "~> 1.0-rc", [hex: :db_connection, optional: false]}, {:decimal, "~> 1.0", [hex: :decimal, optional: false]}]},

examples/todo/web/models/todo.ex

@@ -9,17 +9,15 @@ defmodule Todo.Todo do
     timestamps
   end
 
-  @required_fields ~w(user_id text)
-  @optional_fields ~w(complete)
-
   @doc """
   Creates a changeset based on the `model` and `params`.
 
   If no params are provided, an invalid changeset is returned
   with no validation performed.
   """
-  def changeset(model, params \\ :empty) do
+  def changeset(model, params \\ %{}) do
     model
-    |> cast(params, @required_fields, @optional_fields)
+    |> cast(params, [:user_id, :complete, :text])
+    |> validate_required([:user_id, :text])
   end
 end

examples/todo/web/models/user.ex

@@ -11,18 +11,16 @@ defmodule Todo.User do
     timestamps
   end
 
-  @required_fields ~w(name email)
-  @optional_fields ~w(encrypted_password)
-
   @doc """
   Creates a changeset based on the `model` and `params`.
 
   If no params are provided, an invalid changeset is returned
   with no validation performed.
   """
-  def changeset(model, params \\ :empty) do
+  def changeset(model, params \\ %{}) do
     model
-    |> cast(params, @required_fields, @optional_fields)
+    |> cast(params, [:name, :email, :encrypted_password])
+    |> validate_required([:name, :email])
   end
 
   def todos do

examples/todo/web/web.ex

@@ -18,7 +18,7 @@ defmodule Todo.Web do
 
   def model do
     quote do
-      use Ecto.Model
+      use Ecto.Schema
 
       import Ecto.Changeset
       import Ecto.Query, only: [from: 1, from: 2]