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_name ()

const gchar *
gda_column_get_name (GdaColumn *column);

gda_column_get_description ()

const gchar *
gda_column_get_description (GdaColumn *column);

gda_column_get_dbms_type ()

const gchar *
gda_column_get_dbms_type (GdaColumn *column);

gda_column_get_g_type ()

GType
gda_column_get_g_type (GdaColumn *column);

gda_column_get_allow_null ()

gboolean
gda_column_get_allow_null (GdaColumn *column);

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

gda_column_get_auto_increment ()

gboolean
gda_column_get_auto_increment (GdaColumn *column);

gda_column_get_position ()

gint
gda_column_get_position (GdaColumn *column);

gda_column_get_default_value ()

const GValue *
gda_column_get_default_value (GdaColumn *column);

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

GdaColumn

typedef struct _GdaColumn GdaColumn;

The “id” property

  “id”                       char *

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

Owner: GdaColumn

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,
               char      *old_name,
               gpointer   user_data)

Gets emitted whenever column 's name has been changed

Flags: Run Last