edmiRemoteDeleteInstanceReferences
- Former user (Deleted)
Owned by Former user (Deleted)
EdmiError edmiRemoteDeleteInstanceReferences(SdaiServerContext serverContextId,
InstanceId instanceId,
SdaiInvocationId *edmiInvocationId);
Deletes all external references to a given instance. Normally an instance cannot be deleted as long as there are other instances referring to it. This default behavior can be overruled by changing the system configuration settings.
Arguments
| Type | Name | Comment |
| SdaiServerContext | serverContextId | Context identification, from edmiDefineServerContext |
| InstanceId | instanceId | A numeric instanceID that uniquely identifies the instance in the remote EDMdatabase for which to delete all external references. |
| SdaiInvocationId | edmiInvocationId | Currently not used. |
Return Value
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Options
Example
EdmiError rstat;
SdaiServerContext myContext;
SdaiInteger index, nHits;
SdaiQueryResult qexRes;
SdaiInstance personId;
/* Create Server Context */
rstat = edmiDefineServerContext("MyContext",
"Johnny", "Supervisor", "cf37ftr",
"TCP", "9090", "MyServerHost",
NULL, NULL, NULL, NULL, NULL, &myContext);
/* Get a persons instance Id from a unique
primary key attribute 'PID' */
nHits = 1;
index = 0;
rstat = edmiRemoteSelectInstances(myContext,
"DataRepository", "SocialRelations",
"Person", "PID = '16126353127'",
(ONLY_INSTANCE_IDS | SUBTYPES),
NULL, NULL, NULL,
&index, &nHits, &qexRes,
NULL, NULL, NULL, NULL);
if (!nHits) {
printf("\nRequested pid not found.");
goto err;
}
personId = qexRes->instanceIds[0];
/* Delete all references to personId */
rstat = edmiRemoteDeleteInstanceReferences(myContext, personId, NULL);
/* Delete the instance it self */
rstat = edmiRemoteDeleteInstance(myContext, personId, 0, NULL);
. . .
See also
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