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https://github.com/EpicEricEE/ShopChest.git
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Check if backup table already exists to prevent errors
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8d459220d3
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@ -98,6 +98,11 @@ public abstract class Database {
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"SELECT name FROM sqlite_master WHERE type='table' AND name='shop_list'" :
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"SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='shop_list'");
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String queryCheckIfBackupTableExists =
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(Database.this instanceof SQLite ?
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"SELECT name FROM sqlite_master WHERE type='table' AND name='shop_list_old'" :
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"SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='shop_list_old'");
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String queryCopyTableShopList = "INSERT INTO shops (vendor,product,world,x,y,z,buyprice,sellprice,shoptype) SELECT vendor,product,world,x,y,z,buyprice,sellprice,shoptype FROM shop_list";
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String queryRenameTableShopList = "ALTER TABLE shop_list RENAME TO shop_list_old";
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@ -111,21 +116,33 @@ public abstract class Database {
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ResultSet rs = s2.executeQuery(queryCheckIfTableExists);
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if (rs.next()) {
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plugin.debug("Table 'shop_list' exists: Copying contents...");
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// Table exists: Copy contents to new table
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PreparedStatement ps = connection.prepareStatement(queryCopyTableShopList);
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ps.executeUpdate();
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ps.close();
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plugin.debug("Table 'shop_list' exists");
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plugin.debug("Renaming table...");
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// Rename/Backup old table
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PreparedStatement ps2 = connection.prepareStatement(queryRenameTableShopList);
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ps2.executeUpdate();
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ps2.close();
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// Check if backup table "shop_list_old" already exists
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Statement s3 = connection.createStatement();
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ResultSet rs2 = s3.executeQuery(queryCheckIfBackupTableExists);
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if (rs2.next()) {
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plugin.debug("Backup table 'shop_list_old' already exists: Cannot backup current table");
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} else {
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plugin.debug("Backing up old table");
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// Table exists: Copy contents to new table
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PreparedStatement ps = connection.prepareStatement(queryCopyTableShopList);
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ps.executeUpdate();
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ps.close();
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plugin.debug("Renaming table");
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// Rename/Backup old table
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PreparedStatement ps2 = connection.prepareStatement(queryRenameTableShopList);
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ps2.executeUpdate();
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ps2.close();
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}
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close(s3, rs2);
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}
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s2.close();
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rs.close();
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close(s2, rs);
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// Create table "shop_log"
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Statement s3 = connection.createStatement();
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