demo-zend.php.txt

google的gdata api包

<?php

/* Load the Zend Gdata classes. */
set_include_path(dirname(__FILE__) . '/ZendGdata-0.9.3/library');
require_once 'Zend/Loader.php';
Zend_Loader::loadClass('Zend_Feed_EntryAtom');
Zend_Loader::loadClass('Zend_Gdata');
Zend_Loader::loadClass('Zend_Gdata_AuthSub');

/* Register namespaces for Google Base ('g') and batch requests ('batch'). */
Zend_Feed::registerNamespace('g', 'http://base.google.com/ns/1.0');
Zend_Feed::registerNamespace('batch', 'http://schemas.google.com/gdata/batch');

/* The items feed URL, used for queries, insertions and batch commands. */
$itemsFeedURL = "http://www.google.com/base/feeds/items";

/* Types of cuisine the user may select when inserting a recipe. */
$cuisines = array('African', 'American', 'Asian', 'Caribbean', 'Chinese',
  'French', 'Greek', 'Indian', 'Italian', 'Japanese', 'Jewish', 
  'Mediterranean', 'Mexican', 'Middle Eastern', 'Moroccan', 
  'North American', 'Spanish', 'Thai', 'Vietnamese', 'Other');

function createOrEditEntry($entry) {
  $newEntry = $entry;

  $newEntry->category['scheme'] = 'http://base.google.com/categories/itemtypes';
  $newEntry->category['term'] = 'Recipes';

  $newEntry->title['type'] = 'text';
  $newEntry->title = $_POST['recipe_title'];

  $newEntry->{'g:cuisine'} = $_POST['cuisine'];
  $newEntry->{'g:item_type'} = 'Recipes';
  $newEntry->{'g:item_type'}['type'] = 'text';

  $newEntry->{'g:cooking_time'} = $_POST['time_val'] . ' ' .
                                  $_POST['time_units'];
  $newEntry->{'g:cooking_time'}['type'] = 'intUnit';

  $newEntry->{'g:main_ingredient'} = $_POST['main_ingredient'];
  $newEntry->{'g:main_ingredient'}['type'] = 'text';

  $newEntry->{'g:serving_count'} = $_POST['serves'];
  $newEntry->{'g:serving_count'}['type'] = 'number';

  $newEntry->content = $_POST['recipe_text'];

  return $newEntry;
}

/**
 * Creates the Zend_Feed_EntryAtom used to insert a new recipe.
 */
function buildNewEntry() {
  return createOrEditEntry(new Zend_Feed_EntryAtom());
}

function buildUpdatedEntry($entry) {
  return createOrEditEntry($entry);
}

/**
 * Creates the XML content used to perform a batch delete.
 */
function buildBatchXML() {
  $counter = 0;

  $result =  '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
  $result .= '<feed xmlns="http://www.w3.org/2005/Atom"' . "\n";
  $result .= ' xmlns:g="http://base.google.com/ns/1.0"' . "\n";
  $result .= ' xmlns:batch="http://schemas.google.com/gdata/batch">' . "\n";
  foreach($_POST as $key => $value) {
    if (substr($key, 0, 5) == "link_") {
      $counter++;

      $newEntry = new Zend_Feed_EntryAtom();
      $newEntry->{'id'} = $value;
      $newEntry->{'batch:operation'}['type'] = 'delete';
      $newEntry->{'batch:id'} = $counter;

      $result .= $newEntry->saveXMLFragment();
    }
  }
  $result .= '</feed>' . "\n";

  return $result;
}

/**
 * Exchanges the given single-use token for a session
 * token using AuthSubSessionToken, and returns the result.
 */
function exchangeToken($token) {
  return Zend_Gdata_AuthSub::getAuthSubSessionToken($token);
}

/**
 * Inserts a new recipe by performing an HTTP POST to the
 * items feed.
 */
function postItem() {
  global $itemsFeedURL;

  $client = Zend_Gdata_AuthSub::getHttpClient($_POST['token']);
  $gdata = new Zend_Gdata($client);
  $response = $gdata->post(buildNewEntry()->saveXML(), $itemsFeedURL);

  return $response;
}

/**
 * Updates an existing recipe by performing an HTTP PUT
 * on its feed URI, using the updated values a PUT data.
 */
function updateItem() {
  global $itemsFeedURL;

  $client = Zend_Gdata_AuthSub::getHttpClient($_POST['token']);
  $gdata = new Zend_Gdata($client);

  $feed = $gdata->getFeed($itemsFeedURL . "?");
  foreach ($feed as $feed_entry) {
    if ($feed_entry->link('edit') == $_POST['link']) {
      $updatedEntry = buildUpdatedEntry($feed_entry);
      $updatedEntry->save();
      return true;
    }
  }
}

/**
 * Deletes a recipe by performing an HTTP DELETE (a custom
 * cURL request) on its feed URI.
 */
function deleteItem() {
  $client = Zend_Gdata_AuthSub::getHttpClient($_POST['token']);
  $gdata = new Zend_Gdata($client);
  $gdata->delete($_POST['link']);
}

/**
 * Deletes all recipes by performing an HTTP POST to the
 * batch URI.
 */
function batchDelete() {
  global $itemsFeedURL;
        
  $client = Zend_Gdata_AuthSub::getHttpClient($_POST['token']);
  $gdata = new Zend_Gdata($client);
  $response = $gdata->post(buildBatchXML(), $itemsFeedURL . "/batch");
    
  return $response;
}

/**
 * We arrive here when the user first comes to the form. The first step is
 * to have them get a single-use token.
 */
function showIntroPage() {
  global $itemsFeedURL;

  $next_url = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
  $redirect_url = Zend_Gdata_AuthSub::getAuthSubTokenUri($next_url, $itemsFeedURL, 0,1);

  print '<html>' . "\n";
  print '<head><title>PHP Demo: Google Base API</title>' . "\n";
  print '<link rel="stylesheet" type="text/css" href="../../../css/dev_docs.css">' . "\n";
  print '</head>' . "\n";
  print '<body><center>' . "\n";
  print '<table style="width:50%;">' . "\n";
  print '<tr>' . "\n";
  print '<th colspan="2" style="text-align:center;">PHP Demo: Google Base data API' .
        '<br><font size=-1><span style="font-variant: small-caps;">Powered By</span>' .
        ' <a href="http://framework.zend.com/download/gdata">' .
        'Zend Google Data Client Library</a></font></th>' . "\n";
  print '</tr>' . "\n";
  print '<tr><td>Before you get started, please <a href="' . $redirect_url . 
      '">sign in</a> to your personal Google Base account.</td></tr>' . "\n";
  print '</table>' . "\n";
  print '</center></body></html>' . "\n";
}

/**
 * Prints the table of recipes the user has already entered
 * on the left-hand side of the page.
 */
function showRecipeListPane($token) {
  print '<td style="width:50%; text-align:center; vertical-align:top">' . "\n";
  print '<table>' . "\n";
  print '<tr><th colspan="5" style="text-align:center">Recipes you have added</th></tr>' . "\n";

  global $itemsFeedURL;

  $client = Zend_Gdata_AuthSub::getHttpClient($token);
  $gdata = new Zend_Gdata($client);
  try {
    $feed = $gdata->getFeed($itemsFeedURL . "?");
    if ($feed->count() == 0) {
      print '<tr><td colspan="5" style="text-align:center"><i>(none)</i></td></tr>' . "\n";
    } else {
      print '<tr>' . "\n";
      print '<td style="text-align:center"><i>Name</i></td>' . "\n";
      print '<td style="text-align:center"><i>Cuisine</i></td>' . "\n";
      print '<td style="text-align:center"><i>Serves</i></td>' . "\n";
      print '<td colspan="2" style="text-align:center"><i>Actions</i></td>' . "\n";
      print '</tr>' . "\n";

      foreach ($feed as $feed_entry) {
        $link_list = $feed_entry->link();
        $href = $link_list[0]->getAttribute('href');

        print "<tr>\n";
        print '<td align="left" valign="top"><b><a href="' . $href . '">' .
              $feed_entry->title() . '</a></b></td>' . "\n";
        print '<td style="text-align:center;vertical-align:top">' .
              $feed_entry->cuisine() . '</td>' . "\n";
        print '<td style="text-align:center;vertical-align:top">' .
              $feed_entry->serving_count() . '</td>' . "\n";

        /* Create an Edit button for each existing recipe. */
        print '<td style="text-align:center;vertical-align:top">' . "\n";
        print '<form method="post" action="' . $_SERVER[PHP_SELF] .
              '" style="margin-top:0;margin-bottom:0;">' . "\n";
        print '<input type="hidden" name="action" value="edit">' . "\n";
        print '<input type="hidden" name="token" value="' . $token . '">' . "\n";
        print '<input type="hidden" name="edit" value="' . $feed_entry->id() . '">' . "\n";
        print '<input type="submit" value="Edit">' . "\n";
        print '</form>' . "\n";
        print '</td>' . "\n";

        /* Create a Delete button for each existing recipe. */
        print '<td style="text-align:center; vertical-align:top">' . "\n";
        print '<form method="post" action="' . $_SERVER[PHP_SELF] .
              '" style="margin-top:0;margin-bottom:0;">' . "\n";
        print '<input type="hidden" name="action" value="delete">' . "\n";
        print '<input type="hidden" name="token" value="' . $token . '">' . "\n";
        print '<input type="hidden" name="link" value="' .
              $feed_entry->id() . '">' . "\n";
        print '<input type="submit" value="Delete">' . "\n";
        print '</form>' . "\n";
        print '</td>' . "\n";
        print '</tr>' . "\n";
      }
    }

    /* Create a "Delete all" button" to demonstrate batch requests. */
    print '<tr><td colspan="5" style="text-align:center">' . "\n";
    print '<form method="post" action="' . $_SERVER[PHP_SELF] .
      '" style="margin-top:0;margin-bottom:0">' . "\n";
    print '<input type="hidden" name="action" value="delete_all">' . "\n";
    print '<input type="hidden" name="token" value="' . $token . '">' . "\n";

    $i = 0;
    foreach ($feed as $feed_entry) {
      print '<input type="hidden" name="link_' . $i . '" value="' .
            $feed_entry->id() . '">' . "\n";
      $i++;
    }

    print '<input type="submit" value="Delete All"';
    if ($feed->count() == 0) {
      print ' disabled="true"';
    }
    print '></form></td></tr>' . "\n";
    print '</table>' . "\n";
    print '</td>' . "\n";
  } catch (Exception $e) {
    showMainMenu("Error: " . $e->getMessage(), $token);
  }