add pipelines

lib/memex/pipelines.ex

@@ -0,0 +1,104 @@
+defmodule Memex.Pipelines do
+  @moduledoc """
+  The Pipelines context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Memex.Repo
+
+  alias Memex.Pipelines.Pipeline
+
+  @doc """
+  Returns the list of pipelines.
+
+  ## Examples
+
+      iex> list_pipelines()
+      [%Pipeline{}, ...]
+
+  """
+  def list_pipelines do
+    Repo.all(Pipeline)
+  end
+
+  @doc """
+  Gets a single pipeline.
+
+  Raises `Ecto.NoResultsError` if the Pipeline does not exist.
+
+  ## Examples
+
+      iex> get_pipeline!(123)
+      %Pipeline{}
+
+      iex> get_pipeline!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_pipeline!(id), do: Repo.get!(Pipeline, id)
+
+  @doc """
+  Creates a pipeline.
+
+  ## Examples
+
+      iex> create_pipeline(%{field: value})
+      {:ok, %Pipeline{}}
+
+      iex> create_pipeline(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_pipeline(attrs \\ %{}) do
+    %Pipeline{}
+    |> Pipeline.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a pipeline.
+
+  ## Examples
+
+      iex> update_pipeline(pipeline, %{field: new_value})
+      {:ok, %Pipeline{}}
+
+      iex> update_pipeline(pipeline, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_pipeline(%Pipeline{} = pipeline, attrs) do
+    pipeline
+    |> Pipeline.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a pipeline.
+
+  ## Examples
+
+      iex> delete_pipeline(pipeline)
+      {:ok, %Pipeline{}}
+
+      iex> delete_pipeline(pipeline)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_pipeline(%Pipeline{} = pipeline) do
+    Repo.delete(pipeline)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking pipeline changes.
+
+  ## Examples
+
+      iex> change_pipeline(pipeline)
+      %Ecto.Changeset{data: %Pipeline{}}
+
+  """
+  def change_pipeline(%Pipeline{} = pipeline, attrs \\ %{}) do
+    Pipeline.changeset(pipeline, attrs)
+  end
+end

lib/memex/pipelines/pipeline.ex

@@ -0,0 +1,21 @@
+defmodule Memex.Pipelines.Pipeline do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :binary_id, autogenerate: true}
+  @foreign_key_type :binary_id
+  schema "pipelines" do
+    field :description, :string
+    field :title, :string
+    field :visibility, Ecto.Enum, values: [:public, :private, :unlisted]
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(pipeline, attrs) do
+    pipeline
+    |> cast(attrs, [:title, :description, :visibility])
+    |> validate_required([:title, :description, :visibility])
+  end
+end