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Prevent possible data-loss with old versions

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Rsl1122 2019-09-28 12:08:36 +03:00
parent a9d3a1c9f2
commit 081a40aff1
1 changed files with 25 additions and 2 deletions
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27
Plan/common/src/main/java/com/djrapitops/plan/storage/database/transactions/patches/DeleteIPsPatch.java
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@ -16,10 +16,13 @@
*/
package com.djrapitops.plan.storage.database.transactions.patches;
import com.djrapitops.plan.storage.database.queries.QueryAllStatement;
import com.djrapitops.plan.storage.database.sql.tables.GeoInfoTable;
import static com.djrapitops.plan.storage.database.sql.parsing.Sql.DISTINCT;
import static com.djrapitops.plan.storage.database.sql.parsing.Sql.FROM;
import java.sql.ResultSet;
import java.sql.SQLException;
import static com.djrapitops.plan.storage.database.sql.parsing.Sql.*;
/**
* Patch that replaces plan_ips with plan_geolocations table.
@ -41,6 +44,10 @@ public class DeleteIPsPatch extends Patch {
@Override
protected void applyPatch() {
if (hasTable(GeoInfoTable.TABLE_NAME) && hasLessDataInPlanIPs()) {
dropTable("plan_ips");
return;
}
tempOldTable();
dropTable(GeoInfoTable.TABLE_NAME);
@ -60,6 +67,22 @@ public class DeleteIPsPatch extends Patch {
dropTable(tempTableName);
}
private boolean hasLessDataInPlanIPs() {
Integer inIPs = query(new QueryAllStatement<Integer>(SELECT + "COUNT(1) as c" + FROM + "plan_ips") {
@Override
public Integer processResults(ResultSet set) throws SQLException {
return set.next() ? set.getInt("c") : 0;
}
});
Integer inGeoInfo = query(new QueryAllStatement<Integer>(SELECT + "COUNT(1) as c" + FROM + GeoInfoTable.TABLE_NAME) {
@Override
public Integer processResults(ResultSet set) throws SQLException {
return set.next() ? set.getInt("c") : 0;
}
});
return inIPs <= inGeoInfo;
}
private void tempOldTable() {
if (!hasTable(tempTableName)) {
renameTable("plan_ips", tempTableName);