mirror of
https://github.com/ash-project/ash_postgres.git
synced 2024-09-20 05:23:18 +12:00
58 lines
1.9 KiB
Elixir
58 lines
1.9 KiB
Elixir
defmodule AshPostgres.Repo do
|
|
@moduledoc """
|
|
Resources that use the `AshPostgres` data layer use a `Repo` to access the database.
|
|
|
|
This repo is a slightly modified version of an `Ecto.Repo`.
|
|
|
|
You can use `Ecto.Repo`'s `init/2` to configure your repo like normal, but
|
|
instead of returning `{:ok, config}`, use `super(config)` to pass the
|
|
configuration to the `AshPostgres.Repo` implementation.
|
|
|
|
## Installed Extensions
|
|
|
|
To configure your list of installed extensions, define `installed_extensions/0`
|
|
|
|
Extensions that are relevant to ash_postgres:
|
|
|
|
* `"uuid-ossp"` - Sets UUID primary keys defaults in the migration generator
|
|
* `"pg_trgm"` - Makes the `AshPostgres.Predicates.Trigram` custom predicate available
|
|
|
|
```
|
|
def installed_extensions() do
|
|
["pg_trgm", "uuid-ossp"]
|
|
end
|
|
```
|
|
"""
|
|
|
|
@doc "Use this to inform the data layer about what extensions are installed"
|
|
@callback installed_extensions() :: [String.t()]
|
|
@doc "Return a list of all schema names (only relevant for a multitenant implementation)"
|
|
@callback all_tenants() :: [String.t()]
|
|
@doc "The path where your tenant migrations are stored (only relevant for a multitenant implementation)"
|
|
@callback tenant_migrations_path() :: String.t()
|
|
|
|
defmacro __using__(opts) do
|
|
quote bind_quoted: [opts: opts] do
|
|
otp_app = opts[:otp_app] || raise("Must configure OTP app")
|
|
|
|
use Ecto.Repo,
|
|
adapter: Ecto.Adapters.Postgres,
|
|
otp_app: otp_app
|
|
|
|
def installed_extensions, do: []
|
|
def tenant_migrations_path, do: nil
|
|
def all_tenants, do: []
|
|
|
|
def init(_, config) do
|
|
new_config =
|
|
config
|
|
|> Keyword.put(:installed_extensions, installed_extensions())
|
|
|> Keyword.put(:tenant_migrations_path, tenant_migrations_path())
|
|
|
|
{:ok, new_config}
|
|
end
|
|
|
|
defoverridable installed_extensions: 0, all_tenants: 0, tenant_migrations_path: 0
|
|
end
|
|
end
|
|
end
|