gda_column_new ()

GdaColumn *
gda_column_new (void);

gda_column_copy ()

GdaColumn *
gda_column_copy (GdaColumn *column);

Creates a new GdaColumn object from an existing one.

gda_column_get_description ()

const gchar *
gda_column_get_description (GdaColumn *column);

gda_column_set_description ()

void
gda_column_set_description (GdaColumn *column,
                            const gchar *title);

Sets the column's description

gda_column_get_name ()

const gchar *
gda_column_get_name (GdaColumn *column);

gda_column_set_name ()

void
gda_column_set_name (GdaColumn *column,
                     const gchar *name);

Sets the name of column to name .

gda_column_get_dbms_type ()

const gchar *
gda_column_get_dbms_type (GdaColumn *column);

gda_column_set_dbms_type ()

void
gda_column_set_dbms_type (GdaColumn *column,
                          const gchar *dbms_type);

Defines column 's database type

gda_column_get_g_type ()

GType
gda_column_get_g_type (GdaColumn *column);

gda_column_set_g_type ()

void
gda_column_set_g_type (GdaColumn *column,
                       GType type);

Sets the type of column to type .

gda_column_get_allow_null ()

gboolean
gda_column_get_allow_null (GdaColumn *column);

Gets the 'allow null' flag of the given column.

gda_column_set_allow_null ()

void
gda_column_set_allow_null (GdaColumn *column,
                           gboolean allow);

Sets the 'allow null' flag of the given column.

gda_column_get_auto_increment ()

gboolean
gda_column_get_auto_increment (GdaColumn *column);

gda_column_set_auto_increment ()

void
gda_column_set_auto_increment (GdaColumn *column,
                               gboolean is_auto);

Sets the auto increment flag for the given column.

gda_column_get_position ()

gint
gda_column_get_position (GdaColumn *column);

gda_column_set_position ()

void
gda_column_set_position (GdaColumn *column,
                         gint position);

Sets the position of the column refer to in the containing data model.

gda_column_get_default_value ()

const GValue *
gda_column_get_default_value (GdaColumn *column);

gda_column_set_default_value ()

void
gda_column_set_default_value (GdaColumn *column,
                              const GValue *default_value);

Sets column 's default GValue.

gda_column_get_attribute ()

const GValue *
gda_column_get_attribute (GdaColumn *column,
                          const gchar *attribute);

Get the value associated to a named attribute.

Attributes can have any name, but Libgda proposes some default names, see this section.

gda_column_set_attribute ()

void
gda_column_set_attribute (GdaColumn *column,
                          const gchar *attribute,
                          const GValue *value,
                          GDestroyNotify destroy);

Set the value associated to a named attribute. The attribute string is 'stolen' by this method, and the memory it uses will be freed using the destroy function when no longer needed (if destroy is NULL, then the string will not be freed at all).

Attributes can have any name, but Libgda proposes some default names, see this section.

If there is already an attribute named attribute set, then its value is replaced with the new value (value is copied), except if value is NULL, in which case the attribute is removed.

For example one would use it as:

Note: this method does not modify in any way the contents of the data model for which column is a column (nor does it modify the table definition of the tables used by a SELECT statement is the model was created from a SELECT statement).

gda_column_set_attribute_static()

#define gda_column_set_attribute_static(holder,attribute,value) gda_column_set_attribute((holder),(attribute),(value),NULL)

This function is similar to gda_column_set_attribute() but for static strings

The “id” property

  “id”                       gchar *

Column's Id (warning: the column's ID is not guaranteed to be unique in a GdaDataModel).

Flags: Read / Write

Default value: NULL

The “g-type-changed” signal

void
user_function (GdaColumn *column,
               GType     *old_type,
               GType     *new_type,
               gpointer   user_data)

Gets emitted whenever column 's type has been changed

Flags: Run Last

The “name-changed” signal

void
user_function (GdaColumn *column,
               gchar     *old_name,
               gpointer   user_data)

Gets emitted whenever column 's name has been changed

Flags: Run Last