50 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			50 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
| # Pleroma: A lightweight social networking server
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| # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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| # SPDX-License-Identifier: AGPL-3.0-only
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| 
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| defmodule Pleroma.Repo do
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|   use Ecto.Repo,
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|     otp_app: :pleroma,
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|     adapter: Ecto.Adapters.Postgres,
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|     migration_timestamps: [type: :naive_datetime_usec]
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| 
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|   defmodule Instrumenter do
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|     use Prometheus.EctoInstrumenter
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|   end
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| 
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|   @doc """
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|   Dynamically loads the repository url from the
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|   DATABASE_URL environment variable.
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|   """
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|   def init(_, opts) do
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|     {:ok, Keyword.put(opts, :url, System.get_env("DATABASE_URL"))}
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|   end
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| 
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|   @doc "find resource based on prepared query"
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|   @spec find_resource(Ecto.Query.t()) :: {:ok, struct()} | {:error, :not_found}
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|   def find_resource(%Ecto.Query{} = query) do
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|     case __MODULE__.one(query) do
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|       nil -> {:error, :not_found}
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|       resource -> {:ok, resource}
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|     end
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|   end
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| 
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|   def find_resource(_query), do: {:error, :not_found}
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| 
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|   @doc """
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|   Gets association from cache or loads if need
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| 
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|   ## Examples
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| 
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|     iex> Repo.get_assoc(token, :user)
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|     %User{}
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| 
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|   """
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|   @spec get_assoc(struct(), atom()) :: {:ok, struct()} | {:error, :not_found}
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|   def get_assoc(resource, association) do
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|     case __MODULE__.preload(resource, association) do
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|       %{^association => assoc} when not is_nil(assoc) -> {:ok, assoc}
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|       _ -> {:error, :not_found}
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|     end
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|   end
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| end
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