/**
* Clear associated models' save state. After this method, the associated models of baseObj which
* data is removed from database will become unsaved.
*
* @param baseObj The record to delete.
* @param associationInfos The associated info.
*/
private void clearAssociatedModelSaveState(
DataSupport baseObj, Collection<AssociationsInfo> associationInfos) {
try {
for (AssociationsInfo associationInfo : associationInfos) {
if (associationInfo.getAssociationType() == Const.Model.MANY_TO_ONE
&& !baseObj.getClassName().equals(associationInfo.getClassHoldsForeignKey())) {
Collection<DataSupport> associatedModels = getAssociatedModels(baseObj, associationInfo);
if (associatedModels != null && !associatedModels.isEmpty()) {
for (DataSupport model : associatedModels) {
if (model != null) {
model.resetBaseObjId();
}
}
}
} else if (associationInfo.getAssociationType() == Const.Model.ONE_TO_ONE) {
DataSupport model = getAssociatedModel(baseObj, associationInfo);
if (model != null) {
model.resetBaseObjId();
}
}
}
} catch (Exception e) {
throw new DataSupportException(e.getMessage());
}
}
/**
* Analyze the associations of modelClass and store the associated tables. The associated tables
* might be used when deleting referenced data of a specified row.
*
* @param modelClass To get associations of this class.
*/
private void analyzeAssociations(Class<?> modelClass) {
Collection<AssociationsInfo> associationInfos = getAssociationInfo(modelClass.getName());
for (AssociationsInfo associationInfo : associationInfos) {
String associatedTableName =
DBUtility.getTableNameByClassName(associationInfo.getAssociatedClassName());
if (associationInfo.getAssociationType() == Const.Model.MANY_TO_ONE
|| associationInfo.getAssociationType() == Const.Model.ONE_TO_ONE) {
String classHoldsForeignKey = associationInfo.getClassHoldsForeignKey();
if (!modelClass.getName().equals(classHoldsForeignKey)) {
getForeignKeyTableToDelete().add(associatedTableName);
}
} else if (associationInfo.getAssociationType() == Const.Model.MANY_TO_MANY) {
String joinTableName =
DBUtility.getIntermediateTableName(getTableName(modelClass), associatedTableName);
joinTableName = BaseUtility.changeCase(joinTableName);
getForeignKeyTableToDelete().add(joinTableName);
}
}
}
