memEx/lib/memex/pipelines.ex

243 lines
6.5 KiB
Elixir

defmodule Memex.Pipelines do
@moduledoc """
The Pipelines context.
"""
import Ecto.Query, warn: false
alias Memex.{Accounts.User, Pipelines.Pipeline, Repo}
@doc """
Returns the list of pipelines.
## Examples
iex> list_pipelines(%User{id: 123})
[%Pipeline{}, ...]
iex> list_pipelines("my pipeline", %User{id: 123})
[%Pipeline{slug: "my pipeline"}, ...]
"""
@spec list_pipelines(User.t()) :: [Pipeline.t()]
@spec list_pipelines(search :: String.t() | nil, User.t()) :: [Pipeline.t()]
def list_pipelines(search \\ nil, user)
def list_pipelines(search, %{id: user_id}) when search |> is_nil() or search == "" do
Repo.all(from p in Pipeline, where: p.user_id == ^user_id, order_by: p.slug)
end
def list_pipelines(search, %{id: user_id}) when search |> is_binary() do
trimmed_search = String.trim(search)
Repo.all(
from p in Pipeline,
where: p.user_id == ^user_id,
where:
fragment(
"search @@ websearch_to_tsquery('english', ?)",
^trimmed_search
),
order_by: {
:desc,
fragment(
"ts_rank_cd(search, websearch_to_tsquery('english', ?), 4)",
^trimmed_search
)
}
)
end
@doc """
Returns the list of public pipelines for viewing
## Examples
iex> list_public_pipelines()
[%Pipeline{}, ...]
iex> list_public_pipelines("my pipeline")
[%Pipeline{slug: "my pipeline"}, ...]
"""
@spec list_public_pipelines() :: [Pipeline.t()]
@spec list_public_pipelines(search :: String.t() | nil) :: [Pipeline.t()]
def list_public_pipelines(search \\ nil)
def list_public_pipelines(search) when search |> is_nil() or search == "" do
Repo.all(from p in Pipeline, where: p.visibility == :public, order_by: p.slug)
end
def list_public_pipelines(search) when search |> is_binary() do
trimmed_search = String.trim(search)
Repo.all(
from p in Pipeline,
where: p.visibility == :public,
where:
fragment(
"search @@ websearch_to_tsquery('english', ?)",
^trimmed_search
),
order_by: {
:desc,
fragment(
"ts_rank_cd(search, websearch_to_tsquery('english', ?), 4)",
^trimmed_search
)
}
)
end
@doc """
Gets a single pipeline.
Raises `Ecto.NoResultsError` if the Pipeline does not exist.
## Examples
iex> get_pipeline!(123, %User{id: 123})
%Pipeline{}
iex> get_pipeline!(456, %User{id: 123})
** (Ecto.NoResultsError)
"""
@spec get_pipeline!(Pipeline.id(), User.t()) :: Pipeline.t()
def get_pipeline!(id, %{id: user_id}) do
Repo.one!(
from p in Pipeline,
where: p.id == ^id,
where: p.user_id == ^user_id or p.visibility in [:public, :unlisted]
)
end
def get_pipeline!(id, _invalid_user) do
Repo.one!(
from p in Pipeline,
where: p.id == ^id,
where: p.visibility in [:public, :unlisted]
)
end
@doc """
Gets a single pipeline by it's slug.
Raises `Ecto.NoResultsError` if the Pipeline does not exist.
## Examples
iex> get_pipeline_by_slug("my-pipeline", %User{id: 123})
%Pipeline{}
iex> get_pipeline_by_slug("my-pipeline", %User{id: 123})
** (Ecto.NoResultsError)
"""
@spec get_pipeline_by_slug(Pipeline.slug(), User.t()) :: Pipeline.t() | nil
def get_pipeline_by_slug(slug, %{id: user_id}) do
Repo.one(
from p in Pipeline,
where: p.slug == ^slug,
where: p.user_id == ^user_id or p.visibility in [:public, :unlisted]
)
end
def get_pipeline_by_slug(slug, _invalid_user) do
Repo.one(
from p in Pipeline,
where: p.slug == ^slug,
where: p.visibility in [:public, :unlisted]
)
end
@doc """
Creates a pipeline.
## Examples
iex> create_pipeline(%{field: value}, %User{id: 123})
{:ok, %Pipeline{}}
iex> create_pipeline(%{field: bad_value}, %User{id: 123})
{:error, %Ecto.Changeset{}}
"""
@spec create_pipeline(User.t()) :: {:ok, Pipeline.t()} | {:error, Pipeline.changeset()}
@spec create_pipeline(attrs :: map(), User.t()) ::
{:ok, Pipeline.t()} | {:error, Pipeline.changeset()}
def create_pipeline(attrs \\ %{}, user) do
Pipeline.create_changeset(attrs, user) |> Repo.insert()
end
@doc """
Updates a pipeline.
## Examples
iex> update_pipeline(pipeline, %{field: new_value}, %User{id: 123})
{:ok, %Pipeline{}}
iex> update_pipeline(pipeline, %{field: bad_value}, %User{id: 123})
{:error, %Ecto.Changeset{}}
"""
@spec update_pipeline(Pipeline.t(), attrs :: map(), User.t()) ::
{:ok, Pipeline.t()} | {:error, Pipeline.changeset()}
def update_pipeline(%Pipeline{} = pipeline, attrs, user) do
pipeline
|> Pipeline.update_changeset(attrs, user)
|> Repo.update()
end
@doc """
Deletes a pipeline.
## Examples
iex> delete_pipeline(%Pipeline{user_id: 123}, %User{id: 123})
{:ok, %Pipeline{}}
iex> delete_pipeline(%Pipeline{}, %User{role: :admin})
{:ok, %Pipeline{}}
iex> delete_pipeline(%Pipeline{}, %User{id: 123})
{:error, %Ecto.Changeset{}}
"""
@spec delete_pipeline(Pipeline.t(), User.t()) ::
{:ok, Pipeline.t()} | {:error, Pipeline.changeset()}
def delete_pipeline(%Pipeline{user_id: user_id} = pipeline, %{id: user_id}) do
pipeline |> Repo.delete()
end
def delete_pipeline(%Pipeline{} = pipeline, %{role: :admin}) do
pipeline |> Repo.delete()
end
@doc """
Returns an `%Ecto.Changeset{}` for tracking pipeline changes.
## Examples
iex> change_pipeline(pipeline, %User{id: 123})
%Ecto.Changeset{data: %Pipeline{}}
iex> change_pipeline(pipeline, %{slug: "new slug"}, %User{id: 123})
%Ecto.Changeset{data: %Pipeline{}}
"""
@spec change_pipeline(Pipeline.t(), User.t()) :: Pipeline.changeset()
@spec change_pipeline(Pipeline.t(), attrs :: map(), User.t()) :: Pipeline.changeset()
def change_pipeline(%Pipeline{} = pipeline, attrs \\ %{}, user) do
pipeline |> Pipeline.update_changeset(attrs, user)
end
@spec owner_or_admin?(Pipeline.t(), User.t()) :: boolean()
def owner_or_admin?(%{user_id: user_id}, %{id: user_id}), do: true
def owner_or_admin?(_context, %{role: :admin}), do: true
def owner_or_admin?(_context, _other_user), do: false
@spec owner?(Pipeline.t(), User.t()) :: boolean()
def owner?(%{user_id: user_id}, %{id: user_id}), do: true
def owner?(_context, _other_user), do: false
end