Дозаливка

pma12111211/libraries/plugins/export/ExportJson.class.php

@@ -0,0 +1,210 @@
+<?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
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/* Get the export interface */
+require_once 'libraries/plugins/ExportPlugin.class.php';
+
+/**
+ * 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()
+    {
+        $props = 'libraries/properties/';
+        include_once "$props/plugins/ExportPluginProperties.class.php";
+        include_once "$props/options/groups/OptionsPropertyRootGroup.class.php";
+        include_once "$props/options/groups/OptionsPropertyMainGroup.class.php";
+        include_once "$props/options/items/HiddenPropertyItem.class.php";
+
+        $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();
+        $exportSpecificOptions->setName("Format Specific Options");
+
+        // general options main group
+        $generalOptions = new OptionsPropertyMainGroup();
+        $generalOptions->setName("general_opts");
+        // create primary items and add them to the group
+        $leaf = new HiddenPropertyItem();
+        $leaf->setName("structure_or_data");
+        $generalOptions->addProperty($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;
+    }
+
+    /**
+     * This method is called when any PluginManager to which the observer
+     * is attached calls PluginManager::notify()
+     *
+     * @param SplSubject $subject The PluginManager notifying the observer
+     *                            of an update.
+     *
+     * @return void
+     */
+    public function update (SplSubject $subject)
+    {
+    }
+
+    /**
+     * Outputs export header
+     *
+     * @return bool Whether it succeeded
+     */
+    public function exportHeader ()
+    {
+        PMA_exportOutputHandler(
+            '/**' . $GLOBALS['crlf']
+            . ' Export to JSON plugin for PHPMyAdmin' . $GLOBALS['crlf']
+            . ' @version 0.1' . $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 $db Database name
+     *
+     * @return bool Whether it succeeded
+     */
+    public function exportDBHeader ($db)
+    {
+        PMA_exportOutputHandler('// Database \'' . $db . '\'' . $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 $db Database name
+     *
+     * @return bool Whether it succeeded
+     */
+    public function exportDBCreate($db)
+    {
+        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 $sql_query SQL query for obtaining data
+     *
+     * @return bool Whether it succeeded
+     */
+    public function exportData($db, $table, $crlf, $error_url, $sql_query)
+    {
+        $result = $GLOBALS['dbi']->query(
+            $sql_query, null, PMA_DatabaseInterface::QUERY_UNBUFFERED
+        );
+        $columns_cnt = $GLOBALS['dbi']->numFields($result);
+
+        for ($i = 0; $i < $columns_cnt; $i++) {
+            $columns[$i] = stripslashes($GLOBALS['dbi']->fieldName($result, $i));
+        }
+        unset($i);
+
+        $buffer = '';
+        $record_cnt = 0;
+        while ($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 = '// ' . $db . '.' . $table . $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 (! PMA_exportOutputHandler(json_encode($data))) {
+                return false;
+            }
+        }
+
+        if ($record_cnt) {
+            if (! PMA_exportOutputHandler(']')) {
+                return false;
+            }
+        }
+
+        $GLOBALS['dbi']->freeResult($result);
+        return true;
+    }
+}
+?>