sum7/Conversations
sum7
/
Conversations
1
1
Fork 0
Code Issues Pull Requests Releases Wiki Activity

fix backup creation for older installations 

if your Conversations installation is older than December 2016 (version 1.15.0) the backup would
include historic data that a current installation is not able to read on restore.
This commits excludes that data from the backup.
If you had problems importing the backup you need to create a new backup after this patch
This commit is contained in:
Daniel Gultsch 2019-03-07 09:08:32 +01:00
parent 016e394897
commit 46596e8652
1 changed files with 14 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/main/java/eu/siacs/conversations/services/ExportBackupService.java
View File

@ -145,25 +145,32 @@ public class ExportBackupService extends Service {
return cursorToString(tablename, cursor, max, false); return cursorToString(tablename, cursor, max, false);
} }
private static String cursorToString(String tablename, Cursor cursor, int max, boolean ignore) { private static String cursorToString(final String tablename, final Cursor cursor, int max, boolean ignore) {
final boolean identities = SQLiteAxolotlStore.IDENTITIES_TABLENAME.equals(tablename);
StringBuilder builder = new StringBuilder(); StringBuilder builder = new StringBuilder();
builder.append("INSERT "); builder.append("INSERT ");
if (ignore) { if (ignore) {
builder.append("OR IGNORE "); builder.append("OR IGNORE ");
} }
builder.append("INTO ").append(tablename).append("("); builder.append("INTO ").append(tablename).append("(");
int skipColumn = -1;
for (int i = 0; i < cursor.getColumnCount(); ++i) { for (int i = 0; i < cursor.getColumnCount(); ++i) {
final String name = cursor.getColumnName(i);
if (identities && SQLiteAxolotlStore.TRUSTED.equals(name)) {
skipColumn = i;
continue;
}
if (i != 0) { if (i != 0) {
builder.append(','); builder.append(',');
} }
builder.append(cursor.getColumnName(i)); builder.append(name);
} }
builder.append(") VALUES"); builder.append(") VALUES");
for (int i = 0; i < max; ++i) { for (int i = 0; i < max; ++i) {
if (i != 0) { if (i != 0) {
builder.append(','); builder.append(',');
} }
appendValues(cursor, builder); appendValues(cursor, builder, skipColumn);
if (i < max - 1 && !cursor.moveToNext()) { if (i < max - 1 && !cursor.moveToNext()) {
break; break;
} }
@ -173,9 +180,12 @@ public class ExportBackupService extends Service {
return builder.toString(); return builder.toString();
} }
private static void appendValues(Cursor cursor, StringBuilder builder) { private static void appendValues(final Cursor cursor, final StringBuilder builder, final int skipColumn) {
builder.append("("); builder.append("(");
for (int i = 0; i < cursor.getColumnCount(); ++i) { for (int i = 0; i < cursor.getColumnCount(); ++i) {
if (i == skipColumn) {
continue;
}
if (i != 0) { if (i != 0) {
builder.append(','); builder.append(',');
} }