feat: users crud with generator

lib/todo_test/account.ex

@@ -0,0 +1,104 @@
+defmodule TodoTest.Account do
+  @moduledoc """
+  The Account context.
+  """
+
+  import Ecto.Query, warn: false
+  alias TodoTest.Repo
+
+  alias TodoTest.Account.User
+
+  @doc """
+  Returns the list of users.
+
+  ## Examples
+
+      iex> list_users()
+      [%User{}, ...]
+
+  """
+  def list_users do
+    Repo.all(User)
+  end
+
+  @doc """
+  Gets a single user.
+
+  Raises `Ecto.NoResultsError` if the User does not exist.
+
+  ## Examples
+
+      iex> get_user!(123)
+      %User{}
+
+      iex> get_user!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_user!(id), do: Repo.get!(User, id)
+
+  @doc """
+  Creates a user.
+
+  ## Examples
+
+      iex> create_user(%{field: value})
+      {:ok, %User{}}
+
+      iex> create_user(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_user(attrs \\ %{}) do
+    %User{}
+    |> User.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a user.
+
+  ## Examples
+
+      iex> update_user(user, %{field: new_value})
+      {:ok, %User{}}
+
+      iex> update_user(user, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_user(%User{} = user, attrs) do
+    user
+    |> User.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a user.
+
+  ## Examples
+
+      iex> delete_user(user)
+      {:ok, %User{}}
+
+      iex> delete_user(user)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_user(%User{} = user) do
+    Repo.delete(user)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking user changes.
+
+  ## Examples
+
+      iex> change_user(user)
+      %Ecto.Changeset{data: %User{}}
+
+  """
+  def change_user(%User{} = user, attrs \\ %{}) do
+    User.changeset(user, attrs)
+  end
+end

lib/todo_test/account/user.ex

@@ -0,0 +1,19 @@
+defmodule TodoTest.Account.User do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "users" do
+    field :email, :string
+    field :name, :string
+    field :password, :string
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(user, attrs) do
+    user
+    |> cast(attrs, [:name, :email, :password])
+    |> validate_required([:name, :email, :password])
+  end
+end

lib/todo_test_web/controllers/user_controller.ex

@@ -0,0 +1,64 @@
+defmodule TodoTestWeb.UserController do
+  use TodoTestWeb, :controller
+
+  alias TodoTest.Account
+  alias TodoTest.Account.User
+
+  def index(conn, _params) do
+    users = Account.list_users()
+
+    IO.inspect(users, label: "Look rut!")
+    render(conn, "index.html", users: users)
+  end
+
+  def new(conn, _params) do
+    changeset = Account.change_user(%User{})
+    render(conn, "new.html", changeset: changeset)
+  end
+
+  def create(conn, %{"user" => user_params}) do
+    case Account.create_user(user_params) do
+      {:ok, user} ->
+        conn
+        |> put_flash(:info, "User created successfully.")
+        |> redirect(to: Routes.user_path(conn, :show, user))
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        render(conn, "new.html", changeset: changeset)
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    user = Account.get_user!(id)
+    render(conn, "show.html", user: user)
+  end
+
+  def edit(conn, %{"id" => id}) do
+    user = Account.get_user!(id)
+    changeset = Account.change_user(user)
+    render(conn, "edit.html", user: user, changeset: changeset)
+  end
+
+  def update(conn, %{"id" => id, "user" => user_params}) do
+    user = Account.get_user!(id)
+
+    case Account.update_user(user, user_params) do
+      {:ok, user} ->
+        conn
+        |> put_flash(:info, "User updated successfully.")
+        |> redirect(to: Routes.user_path(conn, :show, user))
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        render(conn, "edit.html", user: user, changeset: changeset)
+    end
+  end
+
+  def delete(conn, %{"id" => id}) do
+    user = Account.get_user!(id)
+    {:ok, _user} = Account.delete_user(user)
+
+    conn
+    |> put_flash(:info, "User deleted successfully.")
+    |> redirect(to: Routes.user_path(conn, :index))
+  end
+end

lib/todo_test_web/router.ex

@@ -28,6 +28,7 @@ defmodule TodoTestWeb.Router do
 
     get "/price", PageController, :price
 
+    resources "/users", UserController
   end
 
   # Other scopes may use custom stacks.

lib/todo_test_web/templates/user/edit.html.heex

@@ -0,0 +1,5 @@
+<h1>Edit User</h1>
+
+<%= render "form.html", Map.put(assigns, :action, Routes.user_path(@conn, :update, @user)) %>
+
+<span><%= link "Back", to: Routes.user_path(@conn, :index) %></span>

lib/todo_test_web/templates/user/form.html.heex

@@ -0,0 +1,23 @@
+<.form let={f} for={@changeset} action={@action}>
+  <%= if @changeset.action do %>
+    <div class="alert alert-danger">
+      <p>Oops, something went wrong! Please check the errors below.</p>
+    </div>
+  <% end %>
+
+  <%= label f, :name %>
+  <%= text_input f, :name %>
+  <%= error_tag f, :name %>
+
+  <%= label f, :email %>
+  <%= text_input f, :email %>
+  <%= error_tag f, :email %>
+
+  <%= label f, :password %>
+  <%= text_input f, :password %>
+  <%= error_tag f, :password %>
+
+  <div>
+    <%= submit "Save" %>
+  </div>
+</.form>

lib/todo_test_web/templates/user/index.html.heex

@@ -0,0 +1,30 @@
+<h1>Listing Users</h1>
+
+<table>
+  <thead>
+    <tr>
+      <th>Name</th>
+      <th>Email</th>
+      <th>Password</th>
+
+      <th></th>
+    </tr>
+  </thead>
+  <tbody>
+<%= for user <- @users do %>
+    <tr>
+      <td><%= user.name %></td>
+      <td><%= user.email %></td>
+      <td><%= user.password %></td>
+
+      <td>
+        <span><%= link "Show", to: Routes.user_path(@conn, :show, user) %></span>
+        <span><%= link "Edit", to: Routes.user_path(@conn, :edit, user) %></span>
+        <span><%= link "Delete", to: Routes.user_path(@conn, :delete, user), method: :delete, data: [confirm: "Are you sure?"] %></span>
+      </td>
+    </tr>
+<% end %>
+  </tbody>
+</table>
+
+<span><%= link "New User", to: Routes.user_path(@conn, :new) %></span>

lib/todo_test_web/templates/user/new.html.heex

@@ -0,0 +1,5 @@
+<h1>New User</h1>
+
+<%= render "form.html", Map.put(assigns, :action, Routes.user_path(@conn, :create)) %>
+
+<span><%= link "Back", to: Routes.user_path(@conn, :index) %></span>

lib/todo_test_web/templates/user/show.html.heex

@@ -0,0 +1,23 @@
+<h1>Show User</h1>
+
+<ul>
+
+  <li>
+    <strong>Name:</strong>
+    <%= @user.name %>
+  </li>
+
+  <li>
+    <strong>Email:</strong>
+    <%= @user.email %>
+  </li>
+
+  <li>
+    <strong>Password:</strong>
+    <%= @user.password %>
+  </li>
+
+</ul>
+
+<span><%= link "Edit", to: Routes.user_path(@conn, :edit, @user) %></span> |
+<span><%= link "Back", to: Routes.user_path(@conn, :index) %></span>

lib/todo_test_web/views/user_view.ex

@@ -0,0 +1,3 @@
+defmodule TodoTestWeb.UserView do
+  use TodoTestWeb, :view
+end

priv/repo/migrations/20211230151820_create_users.exs

@@ -0,0 +1,13 @@
+defmodule TodoTest.Repo.Migrations.CreateUsers do
+  use Ecto.Migration
+
+  def change do
+    create table(:users) do
+      add :name, :string
+      add :email, :string
+      add :password, :string
+
+      timestamps()
+    end
+  end
+end

test/support/fixtures/account_fixtures.ex

@@ -0,0 +1,22 @@
+defmodule TodoTest.AccountFixtures do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `TodoTest.Account` context.
+  """
+
+  @doc """
+  Generate a user.
+  """
+  def user_fixture(attrs \\ %{}) do
+    {:ok, user} =
+      attrs
+      |> Enum.into(%{
+        email: "some email",
+        name: "some name",
+        password: "some password"
+      })
+      |> TodoTest.Account.create_user()
+
+    user
+  end
+end

test/todo_test/account_test.exs

@@ -0,0 +1,63 @@
+defmodule TodoTest.AccountTest do
+  use TodoTest.DataCase
+
+  alias TodoTest.Account
+
+  describe "users" do
+    alias TodoTest.Account.User
+
+    import TodoTest.AccountFixtures
+
+    @invalid_attrs %{email: nil, name: nil, password: nil}
+
+    test "list_users/0 returns all users" do
+      user = user_fixture()
+      assert Account.list_users() == [user]
+    end
+
+    test "get_user!/1 returns the user with given id" do
+      user = user_fixture()
+      assert Account.get_user!(user.id) == user
+    end
+
+    test "create_user/1 with valid data creates a user" do
+      valid_attrs = %{email: "some email", name: "some name", password: "some password"}
+
+      assert {:ok, %User{} = user} = Account.create_user(valid_attrs)
+      assert user.email == "some email"
+      assert user.name == "some name"
+      assert user.password == "some password"
+    end
+
+    test "create_user/1 with invalid data returns error changeset" do
+      assert {:error, %Ecto.Changeset{}} = Account.create_user(@invalid_attrs)
+    end
+
+    test "update_user/2 with valid data updates the user" do
+      user = user_fixture()
+      update_attrs = %{email: "some updated email", name: "some updated name", password: "some updated password"}
+
+      assert {:ok, %User{} = user} = Account.update_user(user, update_attrs)
+      assert user.email == "some updated email"
+      assert user.name == "some updated name"
+      assert user.password == "some updated password"
+    end
+
+    test "update_user/2 with invalid data returns error changeset" do
+      user = user_fixture()
+      assert {:error, %Ecto.Changeset{}} = Account.update_user(user, @invalid_attrs)
+      assert user == Account.get_user!(user.id)
+    end
+
+    test "delete_user/1 deletes the user" do
+      user = user_fixture()
+      assert {:ok, %User{}} = Account.delete_user(user)
+      assert_raise Ecto.NoResultsError, fn -> Account.get_user!(user.id) end
+    end
+
+    test "change_user/1 returns a user changeset" do
+      user = user_fixture()
+      assert %Ecto.Changeset{} = Account.change_user(user)
+    end
+  end
+end