feat(db): user

lib/learning_phoenix/user.ex

@@ -0,0 +1,31 @@
+defmodule LearningPhoenix.User do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "users" do
+    field :name, :string
+    field :email, :string
+    field :password, :string
+
+    timestamps(type: :utc_datetime)
+  end
+
+  @doc false
+  def changeset(user, attrs) do
+    user
+    |> cast(attrs, [:name, :email, :password])
+    |> validate_required([:name, :email, :password])
+    |> validate_length(:name, min: 2)
+    |> validate_length(:name, max: 30)
+    |> valid_email(:email)
+  end
+
+  def valid_email(changeset, field) do
+    value = get_field(changeset, field)
+    if value =~ "@" do
+      changeset
+    else
+      add_error(changeset, field, "invalid email")
+    end
+  end
+end

priv/repo/migrations/20250812135200_create_users.exs

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