Features Added - 2026-02-21

All requested features have been successfully implemented in the Filament Database package.

✅ Feature 1: Export (CSV/JSON/SQL)

Files Created:

src/Actions/ExportTable.php - Reusable export helper class

Files Modified:

src/Pages/DatabaseManager.php - Added export action to table header

Implementation:

Export action available in table header actions (always allowed, even in read-only mode)
Modal form with format selection (CSV, JSON, SQL INSERT)
Option to export current page or all rows
Streams file as download response
CSV: standard format with headers
JSON: array of objects with pretty printing
SQL: INSERT INTO statements with proper escaping

Usage: Click "Export" button in table header → Select format and scope → Download

✅ Feature 2: Import (CSV)

Files Created:

src/Actions/ImportTable.php - Reusable import helper class

Files Modified:

src/Pages/DatabaseManager.php - Added import action to table header

Implementation:

Import action available in table header (blocked in read-only mode)
File upload field for CSV files
Auto-matches CSV headers to table columns (case-insensitive)
Inserts rows via Query Builder
Shows success/error count via Notification
Error messages for failed rows included in notification
Keeps last 20 queries in history

Usage: Click "Import" button → Upload CSV file → Auto-mapping happens → Confirm import

✅ Feature 3: Table Search in Dropdown

Files Modified:

src/Pages/DatabaseManager.php - Added $tableSearch property
resources/views/pages/database-manager.blade.php - Added search input with live filtering

Implementation:

Search input above table dropdown
Live filtering with 300ms debounce
Case-insensitive search using stripos()
Shows "No tables match" message when no results

Usage: Type in the search box above the table dropdown to filter tables

✅ Feature 4: Row Count in Table Dropdown

Files Modified:

src/Pages/DatabaseManager.php - Updated getFilteredTables() method
resources/views/pages/database-manager.blade.php - Display row counts in dropdown

Implementation:

MySQL: Uses information_schema.TABLES for fast cached counts
SQLite/PostgreSQL: Individual COUNT queries with static caching
Displays as "table_name (1,234)" in dropdown
Graceful fallback if count query fails

Usage: Row counts automatically show in parentheses next to table names

✅ Feature 5: Column Editing

Files Modified:

src/Concerns/InteractsWithDatabase.php - Added renameColumn() and modifyColumn() methods
src/Pages/DatabaseManager.php - Added getEditColumnAction() and mapDbTypeToSchemaType() methods
resources/views/pages/partials/structure.blade.php - Added Edit button per column

Implementation:

Edit button for each column in Structure tab
Modal form with fields: name, type, nullable, default
Renames column if name changed
Modifies column type and properties
Logs changes when audit logging enabled
Includes intelligent type mapping from DB types to Laravel schema types

Usage: Go to Structure tab → Click "Edit" next to any column → Modify properties → Save

✅ Feature 6: SQL History

Files Modified:

src/Pages/DatabaseManager.php - Added $sqlHistory property and loadHistoryQuery() method
Updated executeSql() to track query history
resources/views/pages/partials/sql.blade.php - Display clickable history items

Implementation:

Tracks last 20 executed queries
Stores: query, execution time, row count, duration
Clickable history items populate the SQL textarea
Shows execution time in milliseconds
Records failed queries with 'error' duration
Scrollable history panel with hover effects

Usage: Execute SQL queries → History appears below → Click any history item to reload that query

✅ Feature 7: NULL vs Empty String Distinction

Files Modified:

src/Concerns/BuildsFormFields.php - Added NULL checkbox for nullable string/text fields
src/Pages/DatabaseManager.php - Added processNullCheckboxes() helper method
Updated insert and edit actions to process NULL checkboxes

Implementation:

"Set NULL" checkbox appears for nullable string/text fields
Checking the box explicitly sets the value to NULL
Live update clears the field when checkbox is checked
Helper method processes __null suffixed fields
Preserves explicit NULL values during insert (not filtered out as empty)

Usage: When editing/inserting rows with nullable text fields, check "Set [field] to NULL" checkbox to set NULL instead of empty string

✅ Feature 8: Copy Cell Value

Files Modified:

src/Pages/DatabaseManager.php - Added ->copyable() to all TextColumn instances

Implementation:

Uses Filament's built-in copyable() method
Copy icon appears on hover for each table cell
"Copied!" toast message for 1.5 seconds
Works for all column values

Usage: Hover over any table cell → Click copy icon → Value copied to clipboard

Technical Notes

Code Quality

✅ All new PHP files include declare(strict_types=1) as requested
✅ All existing tests pass (111 tests, 195 assertions)
✅ No syntax errors in any files
✅ Used Filament native components throughout
✅ Follows existing code style and patterns
✅ Proper error handling with try-catch blocks
✅ Audit logging integrated where appropriate

CSS & Styling

Package views use scoped CSS classes (fdb-*)
CSS variables (var(--gray-*)) for dark mode compatibility
No Tailwind classes used (as they don't compile for packages)
Inline styles used sparingly for dynamic elements

Performance Considerations

Row counts cached using static variables
MySQL uses information_schema for fast counts
Export uses streaming to handle large datasets
SQL history limited to 20 items to prevent memory issues

Security

Export always uses streaming (memory efficient)
Import validates file types
SQL injection protection via parameter binding
Destructive operations respect read-only mode
Import blocked in read-only mode
Export allowed in read-only mode

Browser Compatibility

All features use standard web APIs
Copy functionality uses Filament's built-in method
No custom clipboard API usage required

Testing Recommendations

While all existing tests pass, consider adding tests for:

Export functionality (CSV/JSON/SQL format validation)
Import with various CSV formats
NULL checkbox behavior
SQL history tracking
Column editing operations
Row count caching

Known Limitations

Import: Currently auto-maps columns by name only. Manual mapping UI would require more complex wizard implementation.
Column Editing: Renaming columns may fail on some databases if there are dependencies (foreign keys, indexes)
Row Counts: May be slow for very large tables on SQLite/PostgreSQL (uses COUNT queries)
SQL History: Stored in component state, not persisted across sessions

Future Enhancements

Potential improvements for future versions:

Manual column mapping UI for imports
Export with filters/search applied
Import preview with validation
Persistent SQL history (session/database storage)
Batch column operations
More export formats (XML, Excel)