# rails generator dictionary

## basic

```
$ rails g model user email age:integer
```
- data_type
    + integer
    + primary_key
    + decimal
    + float
    + boolean
    + binary
    + string
    + text
    + date
    + time
    + datetime
    + timestamp

## option params

You are able to pass –option parameter to generator. It will inherit generating class from passed name to achieve STI (sing table inheritance):

```
$ rails g model admin --parent user
```

This example generates model:

```
class Admin < User
end
```

## module

```
$ $ rails g model admin/user
```

you will get generated model in scope app/models/admin/user.rb, defined scope app/models/admin.rb which is requred to define module. Let’s see to the content of generated module:

```
module Admin
  def self.table_name_prefix
    'admin_'
  end
end
```

## advanced usage

```
$ rails g model user email:index location_id:integer:index
$ rails generate model user pseudo:string{30}
$ rails generate model product 'price:decimal{10,2}'
$ rails generate model user username:string{30}:uniq
$ rails generate model photo album:references
```

*Pay attention that you have to wrap parameter price:decimal{10,2} to quotes. It’s vital and you may have incorrect behavior of generator if you don’t do it. Full explanation of this case is here.*


## polymorphic

```
$ rails generate model product supplier:references{polymorphic}
```



```
$ rails generate model product supplier:references{polymorphic}:index
```