# Apartmentex

Easy SaaS for Phoenix/Ecto.

In this branch, the following versions are supported:
* Ecto 2.0.x
* Postgrex 0.11.0

### Features
* Tenant-qualified queries targeting postgres schemas or MySql databases
* Automatic migrations for tenant tables to schema for Postgres or
database for MySQL

See an example app at

### Setup

- Add this to your mix.exs deps:
{:apartmentex, "~> 0.2.0"}
- Run mix deps.get && mix deps.compile

- You can also configure your tenant schema prefix, adding this to your application configs:
config :apartmentex, schema_prefix: "prefix_" # the default prefix is "tenant_"

### Use

Place tenant only migrations in a new folder in priv/repo called "tenant_migrations".

You can now add a new tenant and automatically create a new schema for Postgres users or a new database for MySQL users, and run the migrations in priv/repo/tenant_migrations for that schema or database.

Table references and indexes in a migration will be applied to the same tenant prefix as the table within tenant_migrations.

Apartmentex.new_tenant(Repo, tenant)

When you need to update a tenant's schema based on new migrations, you can run:

# Runs all migrations necessary for the tenant, based on that tenant's
`schema_migrations` table
# Returns a tuple that is either:
# {:ok, prefix_of_tenant, versions_migrated}
# {:error, prefix_of_tenant, db_error_message}

{status, prefix, versions_or_error} = Apartmentex.migrate_tenant(Repo, tenant)

If there is a problem with a migration, you can roll it back by passing in the
version (as an integer). This will revert every migration back until the version
specified (including that version):

# Returns a tuple that is either:
# {:ok, prefix_of_tenant, versions_rolled_back}
# {:error, prefix_of_tenant, db_error_message}

{status, prefix, versions_or_error} = Apartmentex.migrate_tenant(Repo, tenant, :down, to: 20160711125401)

When deleting a tenant, you can also automatically drop their associated schema or database (for MySQL).

Apartmentex.drop_tenant(Repo, tenant)

Include the tenant struct or tenant id in Apartmentex calls for queries, inserts, updates, and deletes.


  widgets = Apartmentex.all(Repo, Widget, tenant)

  Apartmentex.insert(Repo, changeset, tenant)

  Apartmentex.update(Repo, changeset, tenant_id)

  Apartmentex.delete!(Repo, widget, tenant_id)


### To Do

- mix task to migrate or rollback all tenant schemas/databases
- tests