protected virtual void ProcessModifiedCourses(
ICollection <EntityPair <Course, TCourseParseModel> > modifiedCourses, List <AuthorResolve> authorResolves)
{
foreach (var coursePair in modifiedCourses)
{
var courseBackup = CatalogBackupProcessor.CourseBackupCreator.ApplayChanges(UpdateEvent.Id,
coursePair.DbEntity, coursePair.ParseModelEntity);
// detect authors changes
var courseAuthorBackups = DetectCourseAuthorChanges(coursePair, authorResolves);
if (courseAuthorBackups.Any())
{
if (courseBackup == null)
{
courseBackup = new CourseBackup
{
UpdateEventId = UpdateEvent.Id,
CourseId = coursePair.DbEntity.Id,
CourseAuthorBackups = courseAuthorBackups
};
}
else
{
courseBackup.CourseAuthorBackups = courseAuthorBackups;
}
}
AddUpdates(EntityType.Course, coursePair.DbEntity.Id, OperationType.Modify, courseBackup);
}
}
protected virtual void ProcessCategoryAndAuthorsChangesForUnmodifiedCourses(
ICollection <EntityPair <Course, TCourseParseModel> > unmodifiedCourses, List <AuthorResolve> authorResolves)
{
foreach (var coursePair in unmodifiedCourses)
{
CourseBackup courseBackup = null;
// detect category changes
if (IsMovedToAnotherCategory(coursePair))
{
courseBackup = new CourseBackup
{
UpdateEventId = UpdateEvent.Id,
CategoryId = coursePair.DbEntity.CategoryId
};
AssignCategoryIdToDbEntity(coursePair);
}
// detect authors changes
var courseAuthorBackups = DetectCourseAuthorChanges(coursePair, authorResolves);
if (courseAuthorBackups.Any())
{
if (courseBackup == null)
{
courseBackup = new CourseBackup
{
UpdateEventId = UpdateEvent.Id,
CourseId = coursePair.DbEntity.Id,
CourseAuthorBackups = courseAuthorBackups
};
}
else
{
courseBackup.CourseAuthorBackups = courseAuthorBackups;
}
}
// log if any changes
if (courseBackup != null)
{
AddUpdates(EntityType.Course, coursePair.DbEntity.Id, OperationType.Modify, courseBackup);
}
}
}