model_mommy p

How about recursion? that makes it simple. for example,

**generators.py**
```
def gen_arrayfield(base_field, size, generate_value):
    array = []
    for _ in range(size):
        array.append(generate_value(base_field))
    return array
gen_arrayfield.required = ['base', 'size']
```

**mommy.py** line 448~
```
elif isinstance(field, ArrayField):
    generator = generators.gen_arrayfield
```