[chaley]

Originally Posted by igorius

You didnt understand: I dont want to change the column, its type yes/no. I want to change the plugin! So what types do i have?
text, float, int, comments, datetime...
Does exist a type bool and what is its name? See in preferences, custom column. The boolean is named yes/no. Whats its real name which i can use in my plugin?

Yes, a boolean type exists and its datatype (what I think you are referring to as 'name') is 'bool'.

For the complete list of datatypes see calibre/library/field_metadata.py line 293:

VALID_DATA_TYPES = frozenset([None, 'rating', 'text', 'comments', 'datetime',
                'int', 'float', 'bool', 'series', 'composite', 'enumeration'])

and in calibre/db/backend.py line 58:

CUSTOM_DATA_TYPES = frozenset(('rating', 'text', 'comments', 'datetime',
    'int', 'float', 'bool', 'series', 'composite', 'enumeration'))

and in calibre/gui2/preferences/create_custom_column.py line 822

    The datatype must be one of calibre's custom column types: 'bool',
    'comments', 'composite', 'datetime', 'enumeration', 'float', 'int',
    'rating', 'series', or 'text'. The datatype can't be changed in the dialog.

The information can be derived from calibre/gui2/preferences/create_custom_column.py.

column_types = dict(enumerate((
        ...
        {
            'datatype':'bool',  # The column datatype
            'text':_('Yes/No'), # The name used in the dialog's type dropdown
            'is_multiple':False
        },
        ...

    )))