Defines a relation between matching fields of the two involved tables of a relation. More...
#include <qgsrelation.h>
Public Member Functions | |
| FieldPair () | |
| Default constructor: NULL strings. More... | |
| FieldPair (const QString &referencingField, const QString &referencedField) | |
| Constructor which takes two fields. More... | |
| QString | referencedField () const |
| Get the name of the referenced (parent) field. More... | |
| QString | referencingField () const |
| Get the name of the referencing (child) field. More... | |
 Public Member Functions inherited from QPair< QString, QString > | |
| QPair () | |
| QPair (const T1 &value1, const T2 &value2) | |
| QPair< T1, T2 > & | operator= (const QPair< T1, T2 > &other) |
Additional Inherited Members | |
| Public Attributes inherited from QPair< QString, QString > | |
| typedef | first_type |
| typedef | second_type |
Detailed Description
Defines a relation between matching fields of the two involved tables of a relation.
Often, a relation is only defined by just one FieldPair with the name of the foreign key column of the referencing (child) table as first element and the name of the primary key column of the referenced (parent) table as the second element.
- Note
- not available in Python bindings
Definition at line 42 of file qgsrelation.h.
Constructor & Destructor Documentation
◆ FieldPair() [1/2]
|
inline |
Default constructor: NULL strings.
Definition at line 46 of file qgsrelation.h.
◆ FieldPair() [2/2]
|
inline |
Constructor which takes two fields.
Definition at line 50 of file qgsrelation.h.
Member Function Documentation
◆ referencedField()
|
inline |
Get the name of the referenced (parent) field.
Definition at line 56 of file qgsrelation.h.
◆ referencingField()
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inline |
Get the name of the referencing (child) field.
Definition at line 54 of file qgsrelation.h.
The documentation for this class was generated from the following file:
- /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsrelation.h
