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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Set of methods used to build dumps of tables as JSON
 *
 * @package    PhpMyAdmin-Export
 * @subpackage JSON
 */
namespace PMA\libraries\plugins\export;

use PMA\libraries\properties\options\items\BoolPropertyItem;
use PMA\libraries\plugins\ExportPlugin;
use PMA\libraries\properties\plugins\ExportPluginProperties;
use PMA\libraries\properties\options\items\HiddenPropertyItem;
use PMA\libraries\properties\options\groups\OptionsPropertyMainGroup;
use PMA\libraries\properties\options\groups\OptionsPropertyRootGroup;
use PMA;

/**
 * Handles the export for the JSON format
 *
 * @package    PhpMyAdmin-Export
 * @subpackage JSON
 */
class ExportJson extends ExportPlugin
{
    /**
     * Constructor
     */
    public function __construct()
    {
        $this->setProperties();
    }

    /**
     * Sets the export JSON properties
     *
     * @return void
     */
    protected function setProperties()
    {
        $exportPluginProperties = new ExportPluginProperties();
        $exportPluginProperties->setText('JSON');
        $exportPluginProperties->setExtension('json');
        $exportPluginProperties->setMimeType('text/plain');
        $exportPluginProperties->setOptionsText(__('Options'));

        // create the root group that will be the options field for
        // $exportPluginProperties
        // this will be shown as "Format specific options"
        $exportSpecificOptions = new OptionsPropertyRootGroup(
            "Format Specific Options"
        );

        // general options main group
        $generalOptions = new OptionsPropertyMainGroup("general_opts");
        // create primary items and add them to the group
        $leaf = new HiddenPropertyItem("structure_or_data");
        $generalOptions->addProperty($leaf);

        // JSON_PRETTY_PRINT is available since 5.4.0
        if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
            $leaf = new BoolPropertyItem(
                'pretty_print',
                __('Output pretty-printed JSON (Use human-readable formatting)')
            );
            $generalOptions->addProperty($leaf);
        }

        // add the main group to the root group
        $exportSpecificOptions->addProperty($generalOptions);

        // set the options for the export plugin property item
        $exportPluginProperties->setOptions($exportSpecificOptions);
        $this->properties = $exportPluginProperties;
    }

    /**
     * Outputs export header
     *
     * @return bool Whether it succeeded
     */
    public function exportHeader()
    {
        PMA_exportOutputHandler(
            '/**' . $GLOBALS['crlf']
            . ' Export to JSON plugin for PHPMyAdmin' . $GLOBALS['crlf']
            . ' @version ' . PMA_VERSION . $GLOBALS['crlf']
            . ' */' . $GLOBALS['crlf'] . $GLOBALS['crlf']
        );

        return true;
    }

    /**
     * Outputs export footer
     *
     * @return bool Whether it succeeded
     */
    public function exportFooter()
    {
        return true;
    }

    /**
     * Outputs database header
     *
     * @param string $db       Database name
     * @param string $db_alias Aliases of db
     *
     * @return bool Whether it succeeded
     */
    public function exportDBHeader($db, $db_alias = '')
    {
        if (empty($db_alias)) {
            $db_alias = $db;
        }
        PMA_exportOutputHandler(
            '// Database \'' . $db_alias . '\'' . $GLOBALS['crlf']
        );

        return true;
    }

    /**
     * Outputs database footer
     *
     * @param string $db Database name
     *
     * @return bool Whether it succeeded
     */
    public function exportDBFooter($db)
    {
        return true;
    }

    /**
     * Outputs CREATE DATABASE statement
     *
     * @param string $db          Database name
     * @param string $export_type 'server', 'database', 'table'
     * @param string $db_alias    Aliases of db
     *
     * @return bool Whether it succeeded
     */
    public function exportDBCreate($db, $export_type, $db_alias = '')
    {
        return true;
    }

    /**
     * Outputs the content of a table in JSON format
     *
     * @param string $db        database name
     * @param string $table     table name
     * @param string $crlf      the end of line sequence
     * @param string $error_url the url to go back in case of error
     * @param string $sql_query SQL query for obtaining data
     * @param array  $aliases   Aliases of db/table/columns
     *
     * @return bool Whether it succeeded
     */
    public function exportData(
        $db,
        $table,
        $crlf,
        $error_url,
        $sql_query,
        $aliases = array()
    ) {
        $db_alias = $db;
        $table_alias = $table;
        $this->initAlias($aliases, $db_alias, $table_alias);

        $result = $GLOBALS['dbi']->query(
            $sql_query,
            null,
            PMA\libraries\DatabaseInterface::QUERY_UNBUFFERED
        );
        $columns_cnt = $GLOBALS['dbi']->numFields($result);

        $columns = array();
        for ($i = 0; $i < $columns_cnt; $i++) {
            $col_as = $GLOBALS['dbi']->fieldName($result, $i);
            if (!empty($aliases[$db]['tables'][$table]['columns'][$col_as])) {
                $col_as = $aliases[$db]['tables'][$table]['columns'][$col_as];
            }
            $columns[$i] = stripslashes($col_as);
        }

        $record_cnt = 0;
        while ($record = $GLOBALS['dbi']->fetchRow($result)) {

            $record_cnt++;

            // Output table name as comment if this is the first record of the table
            if ($record_cnt == 1) {
                $buffer = $crlf . '// ' . $db_alias . '.' . $table_alias
                    . $crlf . $crlf;
                $buffer .= '[';
            } else {
                $buffer = ', ';
            }

            if (!PMA_exportOutputHandler($buffer)) {
                return false;
            }

            $data = array();

            for ($i = 0; $i < $columns_cnt; $i++) {
                $data[$columns[$i]] = $record[$i];
            }

            if (isset($GLOBALS['json_pretty_print'])
                && $GLOBALS['json_pretty_print']
            ) {
                $encoded = json_encode($data, JSON_PRETTY_PRINT);
            } else {
                $encoded = json_encode($data);
            }

            if (!PMA_exportOutputHandler($encoded)) {
                return false;
            }
        }

        if ($record_cnt) {
            if (!PMA_exportOutputHandler(']' . $crlf)) {
                return false;
            }
        }

        $GLOBALS['dbi']->freeResult($result);

        return true;
    }
}

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ExportCsv.php File 10.79 KB 0644
ExportExcel.php File 2.98 KB 0644
ExportHtmlword.php File 21.48 KB 0644
ExportJson.php File 6.56 KB 0644
ExportLatex.php File 22.38 KB 0644
ExportMediawiki.php File 12.03 KB 0644
ExportOds.php File 12.23 KB 0644
ExportOdt.php File 28.87 KB 0644
ExportPdf.php File 10.72 KB 0644
ExportPhparray.php File 7.17 KB 0644
ExportSql.php File 100.32 KB 0644
ExportTexytext.php File 19.13 KB 0644
ExportXml.php File 17.64 KB 0644
ExportYaml.php File 6.08 KB 0644
PMA_ExportPdf.php File 27.35 KB 0644
README File 6.64 KB 0644
TableProperty.php File 6.05 KB 0644