Package turbogears :: Package widgets :: Module meta

Module meta

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Classes

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MetaWidget

ParamDescriptor
Descriptor to support automatic callable support for widget params.

NullValidator
A do-nothing validator.

Functions

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lockwidget(self, *args, **kw)
Sets this widget as locked the first time it's displayed.

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_decorate_widget_init(func)
Ensures that the display method for the instance is overridden by lockwidget, that an eventual validator dict is applied to the widget validator and that a validation schema is generated for compound widgets.

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load_kid_template(t, modname=None)
Loads the given template into the given module name, if modname is None, an unique one will be generated.

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copy_schema(schema)
recursively copies a schema

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merge_schemas(to_schema, from_schema, inplace=False)
Recursively merges from_schema into to_schema taking care of leaving to_schema intact if inplace is False (default).

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add_field_to_schema(schema, widget)
Adds a widget's validator if any to the given schema

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generate_schema(schema, widgets)
Generates or extends a copy of schema with all the validators from the widget in the widgets list.

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can_add_field(schema, field_name)
Checks if we can safely add a field.

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Variables

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param_prefix = '_param_'

widget_instance_serial = count(1)

Function Details

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load_kid_template(t, modname=None)

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Loads the given template into the given module name, if modname is None, an unique one will be generated. Returns a tuple (compiled_tmpl, template_text (or modulepath)

can_add_field(schema, field_name)

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Checks if we can safely add a field. Makes sure we're not overriding any field in the Schema. NullValidators are ok to override.