105 lines
1.8 KiB
Elixir
105 lines
1.8 KiB
Elixir
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defmodule Memex.Contexts do
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@moduledoc """
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The Contexts context.
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"""
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import Ecto.Query, warn: false
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alias Memex.Repo
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alias Memex.Contexts.Context
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@doc """
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Returns the list of contexts.
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## Examples
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iex> list_contexts()
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[%Context{}, ...]
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"""
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def list_contexts do
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Repo.all(Context)
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end
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@doc """
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Gets a single context.
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Raises `Ecto.NoResultsError` if the Context does not exist.
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## Examples
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iex> get_context!(123)
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%Context{}
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iex> get_context!(456)
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** (Ecto.NoResultsError)
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"""
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def get_context!(id), do: Repo.get!(Context, id)
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@doc """
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Creates a context.
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## Examples
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iex> create_context(%{field: value})
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{:ok, %Context{}}
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iex> create_context(%{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def create_context(attrs \\ %{}) do
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%Context{}
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|> Context.changeset(attrs)
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|> Repo.insert()
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end
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@doc """
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Updates a context.
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## Examples
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iex> update_context(context, %{field: new_value})
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{:ok, %Context{}}
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iex> update_context(context, %{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def update_context(%Context{} = context, attrs) do
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context
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|> Context.changeset(attrs)
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|> Repo.update()
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end
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@doc """
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Deletes a context.
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## Examples
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iex> delete_context(context)
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{:ok, %Context{}}
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iex> delete_context(context)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_context(%Context{} = context) do
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Repo.delete(context)
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end
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@doc """
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Returns an `%Ecto.Changeset{}` for tracking context changes.
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## Examples
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iex> change_context(context)
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%Ecto.Changeset{data: %Context{}}
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"""
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def change_context(%Context{} = context, attrs \\ %{}) do
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Context.changeset(context, attrs)
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end
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end
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