Editable landing page.

lib/runosaari/pages.ex

@@ -0,0 +1,104 @@
+defmodule Runosaari.Pages do
+  @moduledoc """
+  The Pages context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Runosaari.Repo
+
+  alias Runosaari.Pages.Index
+
+  @doc """
+  Returns the list of index_paragraphs.
+
+  ## Examples
+
+      iex> list_index_paragraphs()
+      [%Index{}, ...]
+
+  """
+  def list_index_paragraphs do
+    Repo.all(Index)
+  end
+
+  @doc """
+  Gets a single index.
+
+  Raises `Ecto.NoResultsError` if the Index does not exist.
+
+  ## Examples
+
+      iex> get_index!(123)
+      %Index{}
+
+      iex> get_index!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_index!(id), do: Repo.get!(Index, id)
+
+  @doc """
+  Creates a index.
+
+  ## Examples
+
+      iex> create_index(%{field: value})
+      {:ok, %Index{}}
+
+      iex> create_index(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_index(attrs \\ %{}) do
+    %Index{}
+    |> Index.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a index.
+
+  ## Examples
+
+      iex> update_index(index, %{field: new_value})
+      {:ok, %Index{}}
+
+      iex> update_index(index, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_index(%Index{} = index, attrs) do
+    index
+    |> Index.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a index.
+
+  ## Examples
+
+      iex> delete_index(index)
+      {:ok, %Index{}}
+
+      iex> delete_index(index)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_index(%Index{} = index) do
+    Repo.delete(index)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking index changes.
+
+  ## Examples
+
+      iex> change_index(index)
+      %Ecto.Changeset{data: %Index{}}
+
+  """
+  def change_index(%Index{} = index, attrs \\ %{}) do
+    Index.changeset(index, attrs)
+  end
+end

lib/runosaari/pages/index.ex

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+defmodule Runosaari.Pages.Index do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "index_paragraphs" do
+    field :content, :string
+    field :seqnum, :integer, default: 999
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(index, attrs) do
+    index
+    |> cast(attrs, [:content, :seqnum])
+    |> validate_required([:content, :seqnum])
+  end
+end