- db_purge: when deleting a workunit record,

delete any assignments that refer to it


svn path=/trunk/boinc/; revision=25284

checkin_notes

@@ -1830,3 +1830,12 @@ Rom    17 Feb 2012
     /
         configure.ac
         version.h
+
+David  17 Feb 2012
+    - db_purge: when deleting a workunit record,
+        delete any assignments that refer to it
+
+    db/
+        db_base.cpp,h
+    sched/
+        db_purge.cpp

db/db_base.cpp

@@ -250,12 +250,17 @@ int DB_BASE::update_field(const char* clause, const char* where_clause) {
 // delete record
 //
 int DB_BASE::delete_from_db() {
-    char vals[MAX_QUERY_LEN], query[MAX_QUERY_LEN];
-    db_print(vals);
+    char query[MAX_QUERY_LEN];
     sprintf(query, "delete from %s where id=%u", table_name, get_id());
     return db->do_query(query);
 }
 
+int DB_BASE::delete_from_db_multi(const char* where_clause) {
+    char query[MAX_QUERY_LEN];
+    sprintf(query, "delete from %s where %s", table_name, where_clause);
+    return db->do_query(query);
+}
+
 int DB_BASE::get_field_ints(const char* fields, int nfields, int* vals) {
     char query[MAX_QUERY_LEN];
     int retval;

db/db_base.h

@@ -98,6 +98,7 @@ public:
     int update_field(const char*, const char* where_clause=NULL);
     int update_fields_noid(char* set_clause, char* where_clause);
     int delete_from_db();
+    int delete_from_db_multi(const char* where_clause);
     int get_field_ints(const char*, int, int*);
     int get_field_str(const char*, char*, int);
     int lookup_id(int id);

sched/db_purge.cpp

@@ -549,6 +549,13 @@ bool do_pass() {
             "Purged workunit [%d] from database\n", wu.id
         );
 
+        if (config.enable_assignment) {
+            DB_ASSIGNMENT asg;
+            char buf[256];
+            sprintf(buf, "workunitid=%d", wu.id);
+            asg.delete_from_db_multi(buf);
+        }
+
         purged_workunits++;
         do_pass_purged_workunits++;
         wu_stored_in_file++;