DB Backup Bugfix

backend/src/main/java/com/storycove/service/DatabaseManagementService.java

@@ -12,6 +12,7 @@ import javax.sql.DataSource;
 import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.sql.*;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
@@ -120,12 +121,14 @@ public class DatabaseManagementService {
             connection.setAutoCommit(false);
             
             try {
-                // Split by semicolon and execute each statement
+                // Parse SQL statements properly (handle semicolons inside string literals)
-                String[] statements = sqlContent.toString().split(";");
+                List<String> statements = parseStatements(sqlContent.toString());
                 
                 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();
                         }
@@ -183,6 +186,55 @@ public class DatabaseManagementService {
         return totalDeleted;
     }
     
+    /**
+     * Parses SQL content into individual statements, properly handling semicolons inside string literals
+     */
+    private List<String> parseStatements(String sql) {
+        List<String> statements = new ArrayList<>();
+        StringBuilder currentStatement = new StringBuilder();
+        boolean inString = false;
+        
+        for (int i = 0; i < sql.length(); i++) {
+            char c = sql.charAt(i);
+            
+            if (c == '\'' && !inString) {
+                // Start of string literal
+                inString = true;
+                currentStatement.append(c);
+            } else if (c == '\'' && inString) {
+                // Potential end of string literal
+                currentStatement.append(c);
+                
+                // Check if this is an escaped quote (doubled single quote)
+                if (i + 1 < sql.length() && sql.charAt(i + 1) == '\'') {
+                    // This is an escaped quote, skip the next quote
+                    i++;
+                    currentStatement.append('\'');
+                } else {
+                    // End of string literal
+                    inString = false;
+                }
+            } else if (c == ';' && !inString) {
+                // Statement terminator outside of string literal
+                String statement = currentStatement.toString().trim();
+                if (!statement.isEmpty()) {
+                    statements.add(statement);
+                }
+                currentStatement = new StringBuilder();
+            } else {
+                currentStatement.append(c);
+            }
+        }
+        
+        // Add final statement if any
+        String finalStatement = currentStatement.toString().trim();
+        if (!finalStatement.isEmpty()) {
+            statements.add(finalStatement);
+        }
+        
+        return statements;
+    }
+
     /**
      * Formats a database value for SQL insertion, handling proper escaping
      */
@@ -214,16 +266,9 @@ public class DatabaseManagementService {
             stringValue = value.toString();
         }
         
-        // Debug output for large fields
-        if (stringValue.length() > 1000) {
-            System.err.println("DEBUG: Processing large field (length: " + stringValue.length() + 
-                             ") with quotes: " + stringValue.contains("'") + 
-                             " type: " + value.getClass().getSimpleName());
-        }
-        
         // Escape single quotes by replacing ' with '' and wrap in quotes
-        // This is the critical line - make absolutely sure single quotes are escaped
         String escapedValue = stringValue.replace("'", "''");
+        
         return "'" + escapedValue + "'";
     }
 }