GnuCash  4.901
Files | Data Structures | Macros | Functions

Qof Instances are a derived type of QofInstance. More...

Files

file  qofinstance.h
 Object instance holds common fields that most gnucash objects use.
 

Data Structures

struct  QofInstance
 
struct  QofInstanceClass
 

Macros

#define QOF_TYPE_INSTANCE   (qof_instance_get_type ())
 
#define QOF_INSTANCE(o)   (G_TYPE_CHECK_INSTANCE_CAST ((o), QOF_TYPE_INSTANCE, QofInstance))
 
#define QOF_INSTANCE_CLASS(k)   (G_TYPE_CHECK_CLASS_CAST((k), QOF_TYPE_INSTANCE, QofInstanceClass))
 
#define QOF_IS_INSTANCE(o)   (G_TYPE_CHECK_INSTANCE_TYPE ((o), QOF_TYPE_INSTANCE))
 
#define QOF_IS_INSTANCE_CLASS(k)   (G_TYPE_CHECK_CLASS_TYPE ((k), QOF_TYPE_INSTANCE))
 
#define QOF_INSTANCE_GET_CLASS(o)   (G_TYPE_INSTANCE_GET_CLASS ((o), QOF_TYPE_INSTANCE, QofInstanceClass))
 
#define qof_instance_is_dirty   qof_instance_get_dirty
 Return value of is_dirty flag.
 

Functions

GType qof_instance_get_type (void)
 Return the GType of a QofInstance.
 
void qof_instance_init_data (QofInstance *, QofIdType, QofBook *)
 Initialise the settings associated with an instance.
 
QofBook * qof_instance_get_book (gconstpointer)
 Return the book pointer.
 
void qof_instance_set_book (gconstpointer inst, QofBook *book)
 Set the book pointer.
 
void qof_instance_copy_book (gpointer ptr1, gconstpointer ptr2)
 Copy the book from one QofInstances to another. More...
 
gboolean qof_instance_books_equal (gconstpointer ptr1, gconstpointer ptr2)
 See if two QofInstances share the same book. More...
 
const GncGUIDqof_instance_get_guid (gconstpointer)
 Return the GncGUID of this instance.
 
const GncGUIDqof_entity_get_guid (gconstpointer)
 
QofCollection * qof_instance_get_collection (gconstpointer inst)
 Return the collection this instance belongs to.
 
gint qof_instance_guid_compare (const gconstpointer ptr1, const gconstpointer ptr2)
 Compare the GncGUID values of two instances. More...
 
gint qof_instance_get_editlevel (gconstpointer ptr)
 
int qof_instance_version_cmp (const QofInstance *left, const QofInstance *right)
 Compare two instances, based on their last update times. More...
 
gboolean qof_instance_get_destroying (gconstpointer ptr)
 Retrieve the flag that indicates whether or not this object is about to be destroyed. More...
 
gboolean qof_instance_get_dirty_flag (gconstpointer ptr)
 Retrieve the flag that indicates whether or not this object has been modified. More...
 
void qof_instance_print_dirty (const QofInstance *entity, gpointer dummy)
 
gboolean qof_instance_get_dirty (QofInstance *)
 
gboolean qof_instance_get_infant (const QofInstance *inst)
 
void qof_instance_get (const QofInstance *inst, const gchar *first_param,...)
 Wrapper for g_object_get.
 
void qof_instance_set (QofInstance *inst, const gchar *first_param,...)
 Wrapper for g_object_set Group setting multiple parameters in a single begin/commit/rollback.
 
guint32 qof_instance_get_idata (gconstpointer inst)
 get the instance tag number used for kvp management in sql backends. More...
 
gchar * qof_instance_get_display_name (const QofInstance *inst)
 Returns a displayable name for this object. More...
 
GList * qof_instance_get_referring_object_list (const QofInstance *inst)
 Returns a list of objects which refer to a specific object. More...
 
gboolean qof_instance_refers_to_object (const QofInstance *inst, const QofInstance *ref)
 Does this object refer to a specific object.
 
GList * qof_instance_get_typed_referring_object_list (const QofInstance *inst, const QofInstance *ref)
 Returns a list of my type of object which refers to an object. More...
 
GList * qof_instance_get_referring_object_list_from_collection (const QofCollection *coll, const QofInstance *ref)
 Returns a list of objects from the collection which refer to the specific object. More...
 

Detailed Description

Qof Instances are a derived type of QofInstance.

The Instance adds some common features and functions that most objects will want to use.

Function Documentation

◆ qof_entity_get_guid()

const GncGUID* qof_entity_get_guid ( gconstpointer  )
Deprecated:
Use qof_instance_get_guid instead.

Works like qof_instance_get_guid, but returns NULL on NULL

Definition at line 467 of file qofinstance.cpp.

468 {
469  return ent ? qof_instance_get_guid(ent) : guid_null();
470 }
const GncGUID * qof_instance_get_guid(gconstpointer inst)
Return the GncGUID of this instance.
const GncGUID * guid_null(void)
Returns a GncGUID which is guaranteed to never reference any entity.
Definition: guid.cpp:128

◆ qof_instance_books_equal()

gboolean qof_instance_books_equal ( gconstpointer  ptr1,
gconstpointer  ptr2 
)

See if two QofInstances share the same book.

Definition at line 555 of file qofinstance.cpp.

556 {
557  const QofInstancePrivate *priv1, *priv2;
558 
559  g_return_val_if_fail(QOF_IS_INSTANCE(ptr1), FALSE);
560  g_return_val_if_fail(QOF_IS_INSTANCE(ptr2), FALSE);
561 
562  priv1 = GET_PRIVATE(ptr1);
563  priv2 = GET_PRIVATE(ptr2);
564 
565  return (priv1->book == priv2->book);
566 }

◆ qof_instance_copy_book()

void qof_instance_copy_book ( gpointer  ptr1,
gconstpointer  ptr2 
)

Copy the book from one QofInstances to another.

Definition at line 546 of file qofinstance.cpp.

547 {
548  g_return_if_fail(QOF_IS_INSTANCE(ptr1));
549  g_return_if_fail(QOF_IS_INSTANCE(ptr2));
550 
551  GET_PRIVATE(ptr1)->book = GET_PRIVATE(ptr2)->book;
552 }

◆ qof_instance_get_destroying()

gboolean qof_instance_get_destroying ( gconstpointer  ptr)

Retrieve the flag that indicates whether or not this object is about to be destroyed.

Parameters
ptrThe object whose flag should be retrieved.
Returns
TRUE if the object has been marked for destruction. FALSE if the object is not marked for destruction, or if a bad parameter is passed to the function.

Definition at line 641 of file qofinstance.cpp.

642 {
643  g_return_val_if_fail(QOF_IS_INSTANCE(ptr), FALSE);
644  return GET_PRIVATE(ptr)->do_free;
645 }

◆ qof_instance_get_dirty_flag()

gboolean qof_instance_get_dirty_flag ( gconstpointer  ptr)

Retrieve the flag that indicates whether or not this object has been modified.

This is specifically the flag on the object. It does not perform any other checking which might normally be performed when testing to see if an object is dirty. If there is any question, use the qof_instance_is_dirty() function instead.

Parameters
ptrThe object whose flag should be retrieved.
Returns
TRUE if the object has been modified and not saved. FALSE if the object has not been modified, or if a bad parameter is passed to the function.

Definition at line 655 of file qofinstance.cpp.

656 {
657  g_return_val_if_fail(QOF_IS_INSTANCE(ptr), FALSE);
658  return GET_PRIVATE(ptr)->dirty;
659 }

◆ qof_instance_get_display_name()

gchar* qof_instance_get_display_name ( const QofInstance inst)

Returns a displayable name for this object.

The returned string must be freed by the caller.

Definition at line 788 of file qofinstance.cpp.

789 {
790  g_return_val_if_fail( inst != NULL, NULL );
791 
792  if ( QOF_INSTANCE_GET_CLASS(inst)->get_display_name != NULL )
793  {
794  return QOF_INSTANCE_GET_CLASS(inst)->get_display_name(inst);
795  }
796  else
797  {
798  /* Not implemented - return default string */
799  return g_strdup_printf("Object %s %p",
801  inst);
802  }
803 }
QofCollection * qof_instance_get_collection(gconstpointer ptr)
Return the collection this instance belongs to.
QofIdType qof_collection_get_type(const QofCollection *col)
return the type that the collection stores
Definition: qofid.cpp:73

◆ qof_instance_get_idata()

guint32 qof_instance_get_idata ( gconstpointer  inst)

get the instance tag number used for kvp management in sql backends.

Definition at line 765 of file qofinstance.cpp.

766 {
767  if (!inst)
768  {
769  return 0;
770  }
771  g_return_val_if_fail(QOF_IS_INSTANCE(inst), 0);
772  return GET_PRIVATE(inst)->idata;
773 }

◆ qof_instance_get_referring_object_list()

GList* qof_instance_get_referring_object_list ( const QofInstance inst)

Returns a list of objects which refer to a specific object.

The list must be freed by the caller, but the objects on the list must not.

Definition at line 838 of file qofinstance.cpp.

839 {
841 
842  g_return_val_if_fail( inst != NULL, NULL );
843 
844  /* scan all collections */
845  data.inst = inst;
846  data.list = NULL;
847 
848  qof_book_foreach_collection(qof_instance_get_book(inst),
849  get_referring_object_helper,
850  &data);
851  return data.list;
852 }
QofBook * qof_instance_get_book(gconstpointer inst)
Return the book pointer.

◆ qof_instance_get_referring_object_list_from_collection()

GList* qof_instance_get_referring_object_list_from_collection ( const QofCollection *  coll,
const QofInstance ref 
)

Returns a list of objects from the collection which refer to the specific object.

The list must be freed by the caller but the objects on the list must not.

Definition at line 866 of file qofinstance.cpp.

867 {
869 
870  g_return_val_if_fail( coll != NULL, NULL );
871  g_return_val_if_fail( ref != NULL, NULL );
872 
873  data.inst = ref;
874  data.list = NULL;
875 
876  qof_collection_foreach(coll, get_typed_referring_object_instance_helper, &data);
877  return data.list;
878 }
void qof_collection_foreach(const QofCollection *col, QofInstanceForeachCB cb_func, gpointer user_data)
Call the callback for each entity in the collection.
Definition: qofid.cpp:320

◆ qof_instance_get_typed_referring_object_list()

GList* qof_instance_get_typed_referring_object_list ( const QofInstance inst,
const QofInstance ref 
)

Returns a list of my type of object which refers to an object.

For example, when called as qof_instance_get_typed_referring_object_list(taxtable, account); it will return the list of taxtables which refer to a specific account. The result should be the same regardless of which taxtable object is used. The list must be freed by the caller but the objects on the list must not.

Definition at line 881 of file qofinstance.cpp.

882 {
883  g_return_val_if_fail( inst != NULL, NULL );
884  g_return_val_if_fail( ref != NULL, NULL );
885 
886  if ( QOF_INSTANCE_GET_CLASS(inst)->get_typed_referring_object_list != NULL )
887  {
888  return QOF_INSTANCE_GET_CLASS(inst)->get_typed_referring_object_list(inst, ref);
889  }
890  else
891  {
892  /* Not implemented - by default, loop through all objects of this object's type and check
893  them individually. */
894  QofCollection* coll;
895 
896  coll = qof_instance_get_collection(inst);
898  }
899 }
GList * qof_instance_get_referring_object_list_from_collection(const QofCollection *coll, const QofInstance *ref)
Returns a list of objects from the collection which refer to the specific object. ...
QofCollection * qof_instance_get_collection(gconstpointer ptr)
Return the collection this instance belongs to.

◆ qof_instance_guid_compare()

gint qof_instance_guid_compare ( const gconstpointer  ptr1,
const gconstpointer  ptr2 
)

Compare the GncGUID values of two instances.

This routine returns 0 if the two values are equal, <0 if the first is smaller than the second, or >0 if the second is smaller tan the first.

Definition at line 502 of file qofinstance.cpp.

503 {
504  const QofInstancePrivate *priv1, *priv2;
505 
506  g_return_val_if_fail(QOF_IS_INSTANCE(ptr1), -1);
507  g_return_val_if_fail(QOF_IS_INSTANCE(ptr2), 1);
508 
509  priv1 = GET_PRIVATE(ptr1);
510  priv2 = GET_PRIVATE(ptr2);
511 
512  return guid_compare(&priv1->guid, &priv2->guid);
513 }
GncGUID guid
GncGUID for the entity.
Definition: qofinstance.cpp:74

◆ qof_instance_version_cmp()

int qof_instance_version_cmp ( const QofInstance left,
const QofInstance right 
)

Compare two instances, based on their last update times.

Returns a negative, zero or positive value, respectively, if 'left' is earlier, same as or later than 'right'. Accepts NULL pointers, NULL's are by definition earlier than any value.

Definition at line 626 of file qofinstance.cpp.

627 {
628  QofInstancePrivate *lpriv, *rpriv;
629 
630  if (!left && !right) return 0;
631  if (!left) return -1;
632  if (!right) return +1;
633 
634  lpriv = GET_PRIVATE(left);
635  rpriv = GET_PRIVATE(right);
636  return lpriv->last_update < rpriv->last_update ? -1 :
637  lpriv->last_update > rpriv->last_update ? 1 : 0;
638 }