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ash_postgres
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1.3.37
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1.3.35
1.3.34
1.3.33
1.3.32
1.3.31
1.3.30
1.3.29
1.3.28
1.3.26
1.3.25
1.3.24
1.3.23
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1.3.20
1.3.19
1.3.18
1.3.17
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1.3.15
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1.3.11
1.3.10
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0.1.0
The PostgreSQL data layer for Ash Framework
Current section
Files
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Files
lib/multitenancy.ex
defmodule AshPostgres.MultiTenancy do
@moduledoc false
@dialyzer {:nowarn_function, load_migration!: 1}
@tenant_name_regex ~r/^[a-zA-Z0-9_-]+$/
def create_tenant!(tenant_name, repo) do
Ecto.Adapters.SQL.query!(repo, "CREATE SCHEMA IF NOT EXISTS \"#{tenant_name}\"", [])
migrate_tenant(tenant_name, repo)
end
def migrate_tenant(tenant_name, repo, migrations_path \\ nil) do
tenant_migrations_path =
migrations_path ||
repo.config()[:tenant_migrations_path] || default_tenant_migration_path(repo)
Code.compiler_options(ignore_module_conflict: true)
Ecto.Migration.SchemaMigration.ensure_schema_migrations_table!(
repo,
repo.config(),
prefix: tenant_name
)
[tenant_migrations_path, "**", "*.exs"]
|> Path.join()
|> Path.wildcard()
|> Enum.map(&extract_migration_info/1)
|> Enum.filter(& &1)
|> Enum.map(&load_migration!/1)
|> Enum.each(fn {version, mod} ->
Ecto.Migration.Runner.run(
repo,
[],
version,
mod,
:forward,
:up,
:up,
all: true,
prefix: tenant_name
)
Ecto.Migration.SchemaMigration.up(repo, repo.config(), version, prefix: tenant_name)
end)
after
Code.compiler_options(ignore_module_conflict: false)
end
# sobelow_skip ["SQL"]
def rename_tenant(repo, old_name, new_name) do
validate_tenant_name!(old_name)
validate_tenant_name!(new_name)
if to_string(old_name) != to_string(new_name) do
Ecto.Adapters.SQL.query(repo, "ALTER SCHEMA \"#{old_name}\" RENAME TO \"#{new_name}\"")
end
:ok
end
defp load_migration!({version, _, file}) when is_binary(file) do
loaded_modules = file |> Code.compile_file() |> Enum.map(&elem(&1, 0))
if mod = Enum.find(loaded_modules, &migration?/1) do
{version, mod}
else
raise Ecto.MigrationError,
"file #{Path.relative_to_cwd(file)} does not define an Ecto.Migration"
end
end
defp migration?(mod) do
function_exported?(mod, :__migration__, 0)
end
defp extract_migration_info(file) do
base = Path.basename(file)
case Integer.parse(Path.rootname(base)) do
{integer, "_" <> name} -> {integer, name, file}
_ -> nil
end
end
defp validate_tenant_name!(tenant_name) do
unless Regex.match?(@tenant_name_regex, tenant_name) do
raise "Tenant name must match #{inspect(@tenant_name_regex)}, got: #{tenant_name}"
end
end
defp default_tenant_migration_path(repo) do
repo_name = repo |> Module.split() |> List.last() |> Macro.underscore()
otp_app = repo.config()[:otp_app]
:code.priv_dir(otp_app)
|> Path.join(repo_name)
|> Path.join("tenant_migrations")
end
end