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Add single database configuration section #276

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10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -96,6 +96,16 @@ If `connects_to` is set, it will be passed directly.

If none of these are set, Solid Cache will use the `ActiveRecord::Base` connection pool. This means that cache reads and writes will be part of any wrapping database transaction.

### Single database configuration

Running Solid Cache in a separate database is recommended, but it's also possible to use one single database for both the app and the cache. Follow these steps:

1. Copy the contents of `db/cache_schema.rb` into a normal migration and delete `db/cache_schema.rb`
2. Remove the `database: cache` line from `config/cache.yml` in the production section
3. Migrate your database. You are ready to run `bin/rails server`

You won't have multiple databases, so `database.yml` doesn't need to have primary and cache database.

### Engine configuration

There are five options that can be set on the engine:
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