DBTableCreateNewFkConstraintIfNecessary Method |
Creates a new fk constraint if necessary. Flags all fk constraints which are already formed by the Fk fields as deleted first.
Namespace:
SD.LLBLGen.Pro.DBDriverCore
Assembly:
SD.LLBLGen.Pro.DBDriverCore (in SD.LLBLGen.Pro.DBDriverCore.dll) Version: 5.3.0.0 (5.3.0)
Syntax public DBForeignKeyConstraint CreateNewFkConstraintIfNecessary(
List<Pair<IProjectElementFieldMapTargetElement, IProjectElementFieldMapTargetElement>> fieldPairs,
string fkName,
Action<string> messageReportingFunc,
bool forModelOnlyRelationship,
out bool created
)
Public Function CreateNewFkConstraintIfNecessary (
fieldPairs As List(Of Pair(Of IProjectElementFieldMapTargetElement, IProjectElementFieldMapTargetElement)),
fkName As String,
messageReportingFunc As Action(Of String),
forModelOnlyRelationship As Boolean,
<OutAttribute> ByRef created As Boolean
) As DBForeignKeyConstraint
Parameters
- fieldPairs
- Type: System.Collections.GenericListPairIProjectElementFieldMapTargetElement, IProjectElementFieldMapTargetElement
The field pairs. Value1 is Fk field, Value2 is Pk field - fkName
- Type: SystemString
Name of the fk to create. Name is created from settings though not made unique across the db. - messageReportingFunc
- Type: SystemActionString
The message reporting func. If specified, it is used to report a normal message to calling code's outer structures - forModelOnlyRelationship
- Type: SystemBoolean
if set to true the fk is for a model-only relationship and only an existing FK, which isn't deleted
matching the fields is returned - created
- Type: SystemBoolean
if set to true this method created a new fk constraint. Set to false if the FK constraint
was already present.
Return Value
Type:
DBForeignKeyConstraint
the foreign key constraint created or the one which is already there (so a new one wasn't necessary), or null if something was
wrong
See Also