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DB Backup Bugfix

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This commit is contained in:
Stefan Hardegger
2025-07-31 08:25:47 +02:00
parent 415eab07de
commit 7227061d25
1 changed files with 35 additions and 9 deletions
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44
backend/src/main/java/com/storycove/service/DatabaseManagementService.java
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@@ -51,16 +51,28 @@ public class DatabaseManagementService {
// Disable foreign key checks during restore (PostgreSQL syntax)
sqlDump.append("SET session_replication_role = replica;\n\n");
// List of tables in dependency order (children first for deletion, parents first for insertion)
List<String> tables = Arrays.asList(
"story_tags", "author_urls", "collection_stories",
"stories", "authors", "series", "tags", "collections"
// List of tables in dependency order (parents first for insertion)
List<String> insertTables = Arrays.asList(
"authors", "series", "tags", "collections",
"stories", "story_tags", "author_urls", "collection_stories"
);
// TRUNCATE in reverse order (children first)
List<String> truncateTables = Arrays.asList(
"collection_stories", "author_urls", "story_tags",
"stories", "collections", "tags", "series", "authors"
);
// Generate TRUNCATE statements for each table (assuming tables already exist)
for (String tableName : tables) {
sqlDump.append("-- Table: ").append(tableName).append("\n");
for (String tableName : truncateTables) {
sqlDump.append("-- Truncate Table: ").append(tableName).append("\n");
sqlDump.append("TRUNCATE TABLE \"").append(tableName).append("\" CASCADE;\n");
}
sqlDump.append("\n");
// Generate INSERT statements in dependency order
for (String tableName : insertTables) {
sqlDump.append("-- Data for Table: ").append(tableName).append("\n");
// Get table data
try (PreparedStatement stmt = connection.prepareStatement("SELECT * FROM \"" + tableName + "\"");
@@ -124,18 +136,32 @@ public class DatabaseManagementService {
// Parse SQL statements properly (handle semicolons inside string literals)
List<String> statements = parseStatements(sqlContent.toString());
int successCount = 0;
for (String statement : statements) {
String trimmedStatement = statement.trim();
if (!trimmedStatement.isEmpty()) {
System.err.println("DEBUG: Executing statement: " +
(trimmedStatement.length() > 200 ? trimmedStatement.substring(0, 200) + "..." : trimmedStatement));
try (PreparedStatement stmt = connection.prepareStatement(trimmedStatement)) {
stmt.execute();
stmt.executeUpdate();
successCount++;
} catch (SQLException e) {
// Log detailed error information for failed statements
System.err.println("ERROR: Failed to execute SQL statement #" + (successCount + 1));
System.err.println("Error: " + e.getMessage());
System.err.println("SQL State: " + e.getSQLState());
System.err.println("Error Code: " + e.getErrorCode());
// Show the problematic statement (first 500 chars)
String statementPreview = trimmedStatement.length() > 500 ?
trimmedStatement.substring(0, 500) + "..." : trimmedStatement;
System.err.println("Statement: " + statementPreview);
throw e; // Re-throw to trigger rollback
}
}
}
connection.commit();
System.err.println("Restore completed successfully. Executed " + successCount + " SQL statements.");
// Reindex search after successful restore
try {