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| 1 | <?php |
| 2 | /** |
| 3 | * Displays a sort of "database diagram" showing the relationships between |
| 4 | * Cargo tables. |
| 5 | * |
| 6 | * @author Yaron Koren |
| 7 | * @ingroup Cargo |
| 8 | */ |
| 9 | |
| 10 | class CargoTableDiagram extends IncludableSpecialPage { |
| 11 | public function __construct() { |
| 12 | parent::__construct( 'CargoTableDiagram' ); |
| 13 | } |
| 14 | |
| 15 | public function execute( $subpage = null ) { |
| 16 | $out = $this->getOutput(); |
| 17 | |
| 18 | $this->setHeaders(); |
| 19 | |
| 20 | $out->addModules( 'ext.cargo.diagram' ); |
| 21 | |
| 22 | $tableNames = CargoUtils::getTables(); |
| 23 | $userDefinedTables = []; |
| 24 | foreach ( $tableNames as $tableName ) { |
| 25 | if ( substr( $tableName, 0, 1 ) !== '_' ) { |
| 26 | $userDefinedTables[] = $tableName; |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | // Create a minimal array of schema data, since we only need |
| 31 | // a small fraction of the overall schema information. |
| 32 | $tableSchemas = CargoUtils::getTableSchemas( $userDefinedTables ); |
| 33 | $tableSchemaData = []; |
| 34 | foreach ( $tableSchemas as $tableName => $tableSchema ) { |
| 35 | $curTableSchemaData = []; |
| 36 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDesc ) { |
| 37 | $typeString = $fieldDesc->mType; |
| 38 | if ( $fieldDesc->mIsList ) { |
| 39 | // @todo - i18n this? |
| 40 | $typeString = "List of $typeString"; |
| 41 | } |
| 42 | $curTableSchemaData[$fieldName] = [ |
| 43 | 'type' => $typeString |
| 44 | ]; |
| 45 | } |
| 46 | $tableSchemaData[$tableName] = $curTableSchemaData; |
| 47 | } |
| 48 | $tableSchemasJSON = json_encode( $tableSchemaData ); |
| 49 | |
| 50 | $allParentTables = []; |
| 51 | foreach ( $userDefinedTables as $tableName ) { |
| 52 | $parentTables = CargoUtils::getParentTables( $tableName ); |
| 53 | if ( is_array( $parentTables ) && count( $parentTables ) > 0 ) { |
| 54 | $allParentTables[$tableName] = $parentTables; |
| 55 | } |
| 56 | } |
| 57 | $allParentTablesJSON = json_encode( $allParentTables ); |
| 58 | |
| 59 | $text = "<div class=\"cargo-table-diagram\" data-table-schemas='$tableSchemasJSON' data-parent-tables='$allParentTablesJSON'><svg class=\"cargo-table-svg\"></svg></div>"; |
| 60 | |
| 61 | $out->addHTML( $text ); |
| 62 | |
| 63 | return true; |
| 64 | } |
| 65 | |
| 66 | protected function getGroupName() { |
| 67 | return 'cargo'; |
| 68 | } |
| 69 | } |