2 * Bacula Catalog Database Delete record interface routines
4 * Kern Sibbald, December 2000
6 * Version $Id: sql_delete.c 7380 2008-07-14 10:42:59Z kerns $
9 Bacula® - The Network Backup Solution
11 Copyright (C) 2000-2006 Free Software Foundation Europe e.V.
13 The main author of Bacula is Kern Sibbald, with contributions from
14 many others, a complete list can be found in the file AUTHORS.
15 This program is Free Software; you can redistribute it and/or
16 modify it under the terms of version three of the GNU Affero General Public
17 License as published by the Free Software Foundation and included
20 This program is distributed in the hope that it will be useful, but
21 WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 General Public License for more details.
25 You should have received a copy of the GNU Affero General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
30 Bacula® is a registered trademark of Kern Sibbald.
31 The licensor of Bacula is the Free Software Foundation Europe
32 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
33 Switzerland, email:ftf@fsfeurope.org.
36 /* *****FIXME**** fix fixed length of select_cmd[] and insert_cmd[] */
41 #if HAVE_SQLITE3 || HAVE_MYSQL || HAVE_POSTGRESQL || HAVE_INGRES || HAVE_DBI
47 /* -----------------------------------------------------------------------
49 * Generic Routines (or almost generic)
51 * -----------------------------------------------------------------------
55 * Delete Pool record, must also delete all associated
60 * PoolId = number of Pools deleted (should be 1)
61 * NumVols = number of Media records deleted
64 db_delete_pool_record(JCR *jcr, B_DB *mdb, POOL_DBR *pr)
70 Mmsg(mdb->cmd, "SELECT PoolId FROM Pool WHERE Name='%s'", pr->Name);
71 Dmsg1(10, "selectpool: %s\n", mdb->cmd);
73 pr->PoolId = pr->NumVols = 0;
75 if (QUERY_DB(jcr, mdb, mdb->cmd)) {
77 num_rows = sql_num_rows(mdb);
79 Mmsg(mdb->errmsg, _("No pool record %s exists\n"), pr->Name);
83 } else if (num_rows != 1) {
84 Mmsg(mdb->errmsg, _("Expecting one pool record, got %d\n"), num_rows);
89 if ((row = sql_fetch_row(mdb)) == NULL) {
90 Mmsg1(&mdb->errmsg, _("Error fetching row %s\n"), sql_strerror(mdb));
94 pr->PoolId = str_to_int64(row[0]);
98 /* Delete Media owned by this pool */
100 "DELETE FROM Media WHERE Media.PoolId = %d", pr->PoolId);
102 pr->NumVols = DELETE_DB(jcr, mdb, mdb->cmd);
103 Dmsg1(200, "Deleted %d Media records\n", pr->NumVols);
107 "DELETE FROM Pool WHERE Pool.PoolId = %d", pr->PoolId);
108 pr->PoolId = DELETE_DB(jcr, mdb, mdb->cmd);
109 Dmsg1(200, "Deleted %d Pool records\n", pr->PoolId);
115 #define MAX_DEL_LIST_LEN 1000000
119 int num_ids; /* ids stored */
120 int max_ids; /* size of array */
121 int num_del; /* number deleted */
122 int tot_ids; /* total to process */
126 * Called here to make in memory list of JobIds to be
127 * deleted. The in memory list will then be transversed
128 * to issue the SQL DELETE commands. Note, the list
129 * is allowed to get to MAX_DEL_LIST_LEN to limit the
130 * maximum malloc'ed memory.
132 static int delete_handler(void *ctx, int num_fields, char **row)
134 struct s_del_ctx *del = (struct s_del_ctx *)ctx;
136 if (del->num_ids == MAX_DEL_LIST_LEN) {
139 if (del->num_ids == del->max_ids) {
140 del->max_ids = (del->max_ids * 3) / 2;
141 del->JobId = (JobId_t *)brealloc(del->JobId, sizeof(JobId_t) *
144 del->JobId[del->num_ids++] = (JobId_t)str_to_int64(row[0]);
150 * This routine will purge (delete) all records
151 * associated with a particular Volume. It will
152 * not delete the media record itself.
153 * TODO: This function is broken and it doesn't purge
154 * File, BaseFiles, Log, ...
155 * We call it from relabel and delete volume=, both ensure
156 * that the volume is properly purged.
158 static int do_media_purge(B_DB *mdb, MEDIA_DBR *mr)
160 POOLMEM *query = get_pool_memory(PM_MESSAGE);
161 struct s_del_ctx del;
169 Mmsg(mdb->cmd, "SELECT JobId from JobMedia WHERE MediaId=%d", mr->MediaId);
170 del.max_ids = mr->VolJobs;
171 if (del.max_ids < 100) {
173 } else if (del.max_ids > MAX_DEL_LIST_LEN) {
174 del.max_ids = MAX_DEL_LIST_LEN;
176 del.JobId = (JobId_t *)malloc(sizeof(JobId_t) * del.max_ids);
177 db_sql_query(mdb, mdb->cmd, delete_handler, (void *)&del);
179 for (i=0; i < del.num_ids; i++) {
180 Dmsg1(400, "Delete JobId=%d\n", del.JobId[i]);
181 Mmsg(query, "DELETE FROM Job WHERE JobId=%s", edit_int64(del.JobId[i], ed1));
182 db_sql_query(mdb, query, NULL, (void *)NULL);
183 Mmsg(query, "DELETE FROM File WHERE JobId=%s", edit_int64(del.JobId[i], ed1));
184 db_sql_query(mdb, query, NULL, (void *)NULL);
185 Mmsg(query, "DELETE FROM JobMedia WHERE JobId=%s", edit_int64(del.JobId[i], ed1));
186 db_sql_query(mdb, query, NULL, (void *)NULL);
189 free_pool_memory(query);
193 /* Delete Media record and all records that
194 * are associated with it.
196 int db_delete_media_record(JCR *jcr, B_DB *mdb, MEDIA_DBR *mr)
199 if (mr->MediaId == 0 && !db_get_media_record(jcr, mdb, mr)) {
203 /* Do purge if not already purged */
204 if (strcmp(mr->VolStatus, "Purged") != 0) {
205 /* Delete associated records */
206 do_media_purge(mdb, mr);
209 Mmsg(mdb->cmd, "DELETE FROM Media WHERE MediaId=%d", mr->MediaId);
210 db_sql_query(mdb, mdb->cmd, NULL, (void *)NULL);
216 * Purge all records associated with a
217 * media record. This does not delete the
218 * media record itself. But the media status
219 * is changed to "Purged".
221 int db_purge_media_record(JCR *jcr, B_DB *mdb, MEDIA_DBR *mr)
224 if (mr->MediaId == 0 && !db_get_media_record(jcr, mdb, mr)) {
228 /* Delete associated records */
229 do_media_purge(mdb, mr); /* Note, always purge */
231 /* Mark Volume as purged */
232 strcpy(mr->VolStatus, "Purged");
233 if (!db_update_media_record(jcr, mdb, mr)) {
243 #endif /* HAVE_SQLITE3 || HAVE_MYSQL || HAVE_POSTGRESQL || HAVE_INGRES */