1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
#include <libgen.h>
#include "actions.h"
#include "dblayer.h"
#include "queries.h"
#include "ckerrlog.h"
ERRLOG(delete);
static int delete_prog(DB *db, int pid) {
sqlite3_stmt *stmt;
int rc;
char sql[STR_M] = "";
dbh_form_query_delete_x_from_y(sql, COL_PROGRAM_ID, TBL_PROGRAM);
rc = sqlite3_prepare_v2(db->ptr, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
return -1;
}
sqlite3_bind_int(stmt, 1, pid);
sqlite3_step(stmt);
if (rc != SQLITE_OK) {
return -1;
}
sqlite3_finalize(stmt);
return 0;
}
static int delete_conf(DB *db, int cid) {
sqlite3_stmt *stmt;
int rc;
char sql[STR_M] = "";
dbh_form_query_delete_x_from_y(sql, COL_CONFIG_ID, TBL_CONFIG);
rc = sqlite3_prepare_v2(db->ptr, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
return -1;
}
sqlite3_bind_int(stmt, 1, cid);
sqlite3_step(stmt);
if (rc != SQLITE_OK) {
return -1;
}
sqlite3_finalize(stmt);
return 0;
}
/* Removes the relationship of `cid` with the corresponding program.
* Returns the program's pid on succes, negative integer otherwise.
*/
static int remove_conf_rel(DB *db, int cid) {
sqlite3_stmt *stmt;
int rc;
int pid = get_pid_from_cid(db, cid);
char sql[STR_M] = "";
dbh_form_query_delete_x_from_y(sql, COL_REL_CONFIG_ID, TBL_REL);
rc = sqlite3_prepare_v2(db->ptr, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
return -1;
}
sqlite3_bind_int(stmt, 1, cid);
sqlite3_step(stmt);
if (rc != SQLITE_OK) {
return -1;
}
sqlite3_finalize(stmt);
return pid;
}
static int remove_all_configs(DB *db, int pid) {
sqlite3_stmt *stmt;
int rc;
char sql[STR_M] = "";
dbh_form_query_select_from_joined_eq(sql, COL_REL_CONFIG_ID, COL_REL_PROGRAM_ID);
rc = sqlite3_prepare_v2(db->ptr, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
return -2;
}
sqlite3_bind_int(stmt, 1, pid);
while (sqlite3_step(stmt) == SQLITE_ROW) {
delete_conf(db, sqlite3_column_int(stmt, 0));
remove_conf_rel(db, sqlite3_column_int(stmt, 0));
}
sqlite3_finalize(stmt);
return 0;
}
static int get_cid_from_pname_and_basename(DB *db, const char *pName, const char *cBaseName) {
sqlite3_stmt *stmt;
int rc;
char sql[STR_L] = "";
char selection[STR_M] = TBL_CONFIG;
strcat(selection, ".");
strcat(selection, COL_CONFIG_ID);
strcat(selection, ", ");
strcat(selection, COL_CONFIG_PATH);
char condition[STR_M] = TBL_PROGRAM;
strcat(condition, ".");
strcat(condition, COL_PROGRAM_NAME);
dbh_form_query_select_from_joined_eq(sql, selection, condition);
rc = sqlite3_prepare_v2(db->ptr, sql, -1, &stmt, 0);
if (rc != SQLITE_OK) {
ERR("while preparing get_cid_from_pname_and_basename");
db->error = SQL_ERR_SQLITE;
return -1;
}
sqlite3_bind_text(stmt, 1, pName, -1, 0);
int _cid = -1;
while (sqlite3_step(stmt) == SQLITE_ROW) {
if (strcmp(cBaseName, basename((char *)sqlite3_column_text(stmt, 1))) == 0) {
_cid = sqlite3_column_int(stmt, 0);
break;
}
}
sqlite3_finalize(stmt);
return _cid;
}
int del_transaction_try(DB *db, const char *pName, const char *cBaseName) {
__BEGIN_TRANSACTION__
int pid = -1;
if (cBaseName) {
// del conf
int cid = get_cid_from_pname_and_basename(db, pName, cBaseName);
if (cid < 0) {
ERR("Config %s doesn't exist in the database.", cBaseName);
return -1;
}
if (delete_conf(db, cid)) {
ERR("Could not delete config %s from db.", cBaseName);
return -1;
}
// handle relations
pid = remove_conf_rel(db, cid);
HELP("Deleted %s config: %s", pName, cBaseName);
if (get_program_relations(db, pid) > 0) {
goto end;
}
}
else {
pid = get_program_id(db, pName);
}
if (pid < 0) {
ERR("Program not found in the db.");
return -1;
}
/* If we are deleting a program we should delete everything that
* refferences it (configs and relationships) */
if (!cBaseName) {
remove_all_configs(db, pid);
}
if(delete_prog(db, pid)) {
ERR("Could not delete program %s from db.", pName);
return -1;
}
HELP("Deleted program %s", pName);
end:
__END_TRANSACTION__
return 0;
}
|
