filter_operator

class camelot.view.controls.filter_operator.FilterOperator(cls, field_name, field_attributes, default_operator=None, default_value_1=None, default_value_2=None, parent=None)

Widget that allows applying various filter operators on a field

Parameters:

• cls – the class on which the filter will be applied
• field_name – the name fo the field on the class on which to filter
• field_attributes – a dictionary of field attributes for this filter
• default_operator – a default operator to be used, on of the attributes of the python module operator, such as operator.eq
• default_value_1 – a default value for the first editor (in case the default operator in unary or binary
• default_value_2 – a default value for the second editor (in case the default operator is binary)
• parent – the parent QtGui.QWidget

combobox_changed(index)

Whenever the combobox changes, show or hide the appropriate editors and emit the filter_changed signal

decorate_query(query)

Parameters:query – an sqlalchemy query Returns:the input query transformed to take into account the filter of

this widget

editor_editing_finished()

Whenever one of the editors their value changes, emit the filters changed signal

get_operator_and_arity()

Returns:the current operator and its arity

update_editors()

Show or hide the editors according to the operator arity