def __init__(self, data):
fields = [ _("Name"),
_("Type"),
_("Width"),
_("Precision")
]
DataSource.__init__(self, data.get_schema(), fields)
def sort_on_column(self, col):
""" Set up data to sort on column. """
ftype = self.data.get_property('_field_type_%s' % (col+1))
if ftype == 'integer':
conv = int
default = '-9'
elif ftype == 'float':
conv = float
default = '-0.1'
else:
conv = str
default = ''
if self.subset:
data = self.subset
else:
data = xrange(len(self))
field = self.fields[col]
values = [conv(self.data[n].get_property(field, default)) for n in data]
DataSource.sort(self, values)
def __init__(self, data, fields):
DataSource.__init__(self, data, fields)