domain.ex (4047B)
1 # Zenflows is designed to implement the Valueflows vocabulary, 2 # written and maintained by srfsh <info@dyne.org>. 3 # Copyright (C) 2021-2023 Dyne.org foundation <foundation@dyne.org>. 4 # 5 # This program is free software: you can redistribute it and/or modify 6 # it under the terms of the GNU Affero General Public License as published by 7 # the Free Software Foundation, either version 3 of the License, or 8 # (at your option) any later version. 9 # 10 # This program is distributed in the hope that it will be useful, 11 # but WITHOUT ANY WARRANTY; without even the implied warranty of 12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 # GNU Affero General Public License for more details. 14 # 15 # You should have received a copy of the GNU Affero General Public License 16 # along with this program. If not, see <https://www.gnu.org/licenses/>. 17 18 defmodule Zenflows.VF.Scenario.Domain do 19 @moduledoc "Domain logic of Scenarios." 20 21 alias Ecto.{Changeset, Multi} 22 alias Zenflows.DB.{Page, Repo, Schema} 23 alias Zenflows.VF.Scenario 24 25 @spec one(Ecto.Repo.t(), Schema.id() | map() | Keyword.t()) 26 :: {:ok, Scenario.t()} | {:error, String.t()} 27 def one(repo \\ Repo, _) 28 def one(repo, id) when is_binary(id), do: one(repo, id: id) 29 def one(repo, clauses) do 30 case repo.get_by(Scenario, clauses) do 31 nil -> {:error, "not found"} 32 found -> {:ok, found} 33 end 34 end 35 36 @spec one!(Ecto.Repo.t(), Schema.id() | map() | Keyword.t()) :: Scenario.t() 37 def one!(repo \\ Repo, id_or_clauses) do 38 {:ok, value} = one(repo, id_or_clauses) 39 value 40 end 41 42 @spec all(Page.t()) :: {:ok, [Scenario.t()]} | {:error, Changeset.t()} 43 def all(page \\ Page.new()) do 44 {:ok, Page.all(Scenario, page)} 45 end 46 47 @spec all!(Page.t()) :: [Scenario.t()] 48 def all!(page \\ Page.new()) do 49 {:ok, value} = all(page) 50 value 51 end 52 53 @spec create(Schema.params()) :: {:ok, Scenario.t()} | {:error, Changeset.t()} 54 def create(params) do 55 key = multi_key() 56 Multi.new() 57 |> multi_insert(params) 58 |> Repo.transaction() 59 |> case do 60 {:ok, %{^key => value}} -> {:ok, value} 61 {:error, _, reason, _} -> {:error, reason} 62 end 63 end 64 65 @spec create!(Schema.params()) :: Scenario.t() 66 def create!(params) do 67 {:ok, value} = create(params) 68 value 69 end 70 71 @spec update(Schema.id(), Schema.params()) 72 :: {:ok, Scenario.t()} | {:error, String.t() | Changeset.t()} 73 def update(id, params) do 74 key = multi_key() 75 Multi.new() 76 |> multi_update(id, params) 77 |> Repo.transaction() 78 |> case do 79 {:ok, %{^key => value}} -> {:ok, value} 80 {:error, _, reason, _} -> {:error, reason} 81 end 82 end 83 84 @spec update!(Schema.id(), Schema.params()) :: Scenario.t() 85 def update!(id, params) do 86 {:ok, value} = update(id, params) 87 value 88 end 89 90 @spec delete(Schema.id()) 91 :: {:ok, Scenario.t()} | {:error, String.t() | Changeset.t()} 92 def delete(id) do 93 key = multi_key() 94 Multi.new() 95 |> multi_delete(id) 96 |> Repo.transaction() 97 |> case do 98 {:ok, %{^key => value}} -> {:ok, value} 99 {:error, _, reason, _} -> {:error, reason} 100 end 101 end 102 103 @spec delete!(Schema.id()) :: Scenario.t() 104 def delete!(id) do 105 {:ok, value} = delete(id) 106 value 107 end 108 109 @spec preload(Scenario.t(), :defined_as | :refinement_of) :: Scenario.t() 110 def preload(scen, x) when x in ~w[defined_as refinement_of]a do 111 Repo.preload(scen, x) 112 end 113 114 @spec multi_key() :: atom() 115 def multi_key(), do: :scenario 116 117 @spec multi_one(Multi.t(), term(), Schema.id()) :: Multi.t() 118 def multi_one(m, key \\ multi_key(), id) do 119 Multi.run(m, key, fn repo, _ -> one(repo, id) end) 120 end 121 122 @spec multi_insert(Multi.t(), term(), Schema.params()) :: Multi.t() 123 def multi_insert(m, key \\ multi_key(), params) do 124 Multi.insert(m, key, Scenario.changeset(params)) 125 end 126 127 @spec multi_update(Multi.t(), term(), Schema.id(), Schema.params()) :: Multi.t() 128 def multi_update(m, key \\ multi_key(), id, params) do 129 m 130 |> multi_one("#{key}.one", id) 131 |> Multi.update(key, 132 &Scenario.changeset(Map.fetch!(&1, "#{key}.one"), params)) 133 end 134 135 @spec multi_delete(Multi.t(), term(), Schema.id()) :: Multi.t() 136 def multi_delete(m, key \\ multi_key(), id) do 137 m 138 |> multi_one("#{key}.one", id) 139 |> Multi.delete(key, &Map.fetch!(&1, "#{key}.one")) 140 end 141 end