Gda.MetaTableColumn¶

Fields¶

Name	Type	Access	Description
column_name	`str`	r/w	the column’s name
column_type	`str`	r/w	the column’s DBMS’s type
default_value	`str`	r/w	the column’s default value, represented as a valid SQL value (surrounded by simple quotes for strings, …), or `None` if column has no default value
gtype	`GObject.GType`	r/w	the detected column’s `GObject.GType`
nullok	`bool`	r/w	tells if the column can be `None`
pkey	`bool`	r/w	tells if the column is part of a primary key

Methods¶

	`foreach_attribute` (func, *data)
	`get_attribute` (attribute)
	`set_attribute` (attribute, value, destroy)

Details¶

class Gda.MetaTableColumn¶

This structure represents a table of view’s column, its contents must not be modified.

foreach_attribute(func, *data)¶

Parameters:

func (Gda.AttributesManagerFunc) – a Gda.AttributesManagerFunc function
data (object or None) – user data to be passed as last argument of func each time it is called

Calls func for each attribute set to tcol

get_attribute(attribute)¶

Parameters:: attribute (str) – attribute name as a string
Returns:: a read-only GObject.Value, or None if not attribute named attribute has been set for column
Return type:: GObject.Value

Get the value associated to a named attribute.

Attributes can have any name, but Libgda proposes some default names, see ‘this section [libgda-5.0-Attributes-manager.synopsis]’.

set_attribute(attribute, value, destroy)¶

Parameters:

attribute (str) – attribute name as a static string
value (GObject.Value or None) – a GObject.Value, or None
destroy (GLib.DestroyNotify or None) – function called when attribute has to be freed, or None

Set the value associated to a named attribute.

Attributes can have any name, but Libgda proposes some default names, see ‘this section [libgda-40-Attributes-manager.synopsis]’. If there is already an attribute named attribute set, then its value is replaced with the new value, except if value is None, in which case the attribute is removed.

Warning: attribute is not copied, if it needs to be freed when not used anymore, then destroy should point to the functions which will free it (typically GLib.free()). If attribute does not need to be freed, then destroy can be None.