modules_k/presence, modules_k/pua, modules_k/rls: Fixed issues discovered while testing with PostgreSQL 9.0

- Some of the fields in the DB have not null constraints that result
  in errors when using PostgreSQL but not MySQL.

modules_k/presence/subscribe.c

@@ -2211,15 +2211,18 @@ int insert_db_subs_auth(subs_t* subs)
 	db_vals[n_query_cols].nul = 0;
 	db_vals[n_query_cols].val.int_val= (int)time(NULL);
 	n_query_cols++;
-	
+
+	db_keys[n_query_cols] =&str_reason_col;
+	db_vals[n_query_cols].type = DB1_STR;
+	db_vals[n_query_cols].nul = 0;
 	if(subs->reason.s && subs->reason.len)
-	{
-		db_keys[n_query_cols] =&str_reason_col;
-		db_vals[n_query_cols].type = DB1_STR;
-		db_vals[n_query_cols].nul = 0;
 		db_vals[n_query_cols].val.str_val = subs->reason;
-		n_query_cols++;	
-	}	
+	else
+	{
+		db_vals[n_query_cols].val.str_val.s = ""; 
+		db_vals[n_query_cols].val.str_val.len = 0; 
+	}
+	n_query_cols++;	
 	
 	if (pa_dbf.use_table(pa_db, &watchers_table) < 0) 
 	{

modules_k/pua/pua.c

@@ -171,9 +171,6 @@ static int mod_init(void)
 	LM_DBG("db_url=%s/%d/%p\n", ZSW(db_url.s), db_url.len, db_url.s);
 	db_table.len = db_table.s ? strlen(db_table.s) : 0;
 	
-	if (dbmode==PUA_DB_ONLY) 
-		LM_ERR( "DB ONLY MODE ACTIVE\n" );
-
 	/* binding to database module  */
 	if (db_bind_mod(&db_url, &pua_dbf))
 	{
@@ -780,7 +777,7 @@ static void db_update(unsigned int ticks,void *param)
 	db_key_t db_cols[5];
 	db_val_t q_vals[20], db_vals[5];
 	db_op_t  db_ops[1] ;
-	int n_query_cols= 0, n_query_update= 0, n_actual_query_cols= 0;
+	int n_query_cols= 0, n_query_update= 0;
 	int n_update_cols= 0;
 	int i;
 	int puri_col,pid_col,expires_col,flag_col,etag_col,tuple_col,event_col;
@@ -1101,14 +1098,14 @@ static void db_update(unsigned int ticks,void *param)
 					}
 
 					if(p->extra_headers)
-					{
-						n_actual_query_cols = n_query_cols;
 						q_vals[extra_headers_col].val.str_val = *(p->extra_headers);
-					}
 					else
-						n_actual_query_cols = n_query_cols - 1;
-						
-					if(pua_dbf.insert(pua_db, q_cols, q_vals,n_actual_query_cols )<0)
+					{
+						q_vals[extra_headers_col].val.str_val.s = "";
+						q_vals[extra_headers_col].val.str_val.len = 0;
+					}
+					
+					if(pua_dbf.insert(pua_db, q_cols, q_vals,n_query_cols )<0)
 					{
 						LM_ERR("while inserting in db table pua\n");
 						if(!no_lock)

modules_k/pua/pua_db.c

@@ -1634,6 +1634,15 @@ void insert_puadb(ua_pres_t* pres)
     db_vals[n_cols].val.str_val.len = pres->extra_headers->len;
     n_cols++;
   }
+  else
+  {
+    db_cols[n_cols] = &str_extra_headers_col;
+    db_vals[n_cols].type = DB1_STR;
+    db_vals[n_cols].nul = 0; 
+    db_vals[n_cols].val.str_val.s = "";
+    db_vals[n_cols].val.str_val.len = 0;
+    n_cols++;
+  }
 
 
   if(pua_db == NULL)

modules_k/rls/resource_notify.c

@@ -730,14 +730,18 @@ int rls_handle_notify(struct sip_msg* msg, char* c1, char* c2)
 	query_vals[n_query_cols].val.int_val= auth_flag; 
 	n_query_cols++;
 
+	query_cols[n_query_cols]= &str_reason_col;
+	query_vals[n_query_cols].type = DB1_STR;
+	query_vals[n_query_cols].nul = 0;
 	if(reason)
-	{
-		query_cols[n_query_cols]= &str_reason_col;
-		query_vals[n_query_cols].type = DB1_STR;
-		query_vals[n_query_cols].nul = 0;
 		query_vals[n_query_cols].val.str_val= *reason;
-		n_query_cols++;
+	else
+	{
+		query_vals[n_query_cols].val.str_val.s = "";
+		query_vals[n_query_cols].val.str_val.len = 0;
 	}
+	n_query_cols++;
+
 	query_cols[n_query_cols]= &str_content_type_col;
 	query_vals[n_query_cols].type = DB1_STR;
 	query_vals[n_query_cols].nul = 0;