demo.php.txt

google的gdata api包

  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) {
  global $parsedEntries;

  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";

  getItems($token);

  if(count($parsedEntries) == 0) {
    print '<tr><td colspan="5" style="text-align:center"><i>(none)</i></td></tr>' . "\n";
  } else {
    print '<tr>' . "\n";
    print '<td style="text-align:center"><i>Name</i></td>' . "\n";
    print '<td style="text-align:center"><i>Cuisine</i></td>' . "\n";
    print '<td style="text-align:center"><i>Serves</i></td>' . "\n";
    print '<td colspan="2" style="text-align:center"><i>Actions</i></td>' . "\n";
    print '</tr>' . "\n";
    for($i = 0; $i < count($parsedEntries); $i++) {
      print '<tr>' . "\n";
      print '<td align="left" valign="top"><b><a href="' . 
        $parsedEntries[$i]['alternate'] . '">' .
        $parsedEntries[$i]['title'] . '</a></b></td>' . "\n";
      print '<td style="text-align:center;vertical-align:top">' .
        $parsedEntries[$i]['g:cuisine'] . '</td>' . "\n";
      print '<td style="text-align:center;vertical-align:top">' .
        $parsedEntries[$i]['g: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="' . $token . '">' . "\n";
      foreach ($parsedEntries[$i] as $key => $value) {
        print '<input type="hidden" name="' . $key . '" value="' .
          $value . '">' . "\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="' .
        $parsedEntries[$i]['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="' . $token . '">' . "\n";
  for($i = 0; $i < count($parsedEntries); $i++) {
    print '<input type="hidden" name="link_' . $i . '" value="' .
      $parsedEntries[$i]['id'] . '">' . "\n";
  }
  print '<input type="submit" value="Delete All"';
  if(count($parsedEntries) == 0) {
    print ' disabled="true"';
  }
  print '></form></td></tr>' . "\n";
  print '</table>' . "\n";
  print '</td>' . "\n";
}

/**
 * Prints a small form allowing the user to insert a new
 * recipe.
 */
function showRecipeInsertPane($token) {
  global $cuisines;

  print '<td valign="top" width="50%">' . "\n";
  print '<table width="100%">' . "\n";
  print '<tr><th colspan="2" style="text-align:center">Insert a new recipe</th></tr>' . "\n";
  print '<form method="post" action="' . $_SERVER[PHP_SELF] . '">' . "\n";
  print '<input type="hidden" name="action" value="insert">' . "\n";
  print '<input type="hidden" name="token" value="' . $token . '">' . "\n";
  print '<tr><td align="right">Title:</td>' . "\n";
  print '<td><input type="text" name="recipe_title" class="half">' .
    '</td></tr>' . "\n";
  print '<tr><td align="right">Main ingredient:</td>' . "\n";
  print '<td><input type="text" name="main_ingredient" class="half">' .
    '</td></tr>' . "\n";
  print '<tr><td align="right">Cuisine:</td>' . "\n";
  print '<td><select name="cuisine" class="half">' . "\n";

  foreach ($cuisines as $curCuisine) {
    print '<option value=' . $curCuisine . '>' . $curCuisine .
      '</option>' . "\n";
  }

  print '</select></td></tr>' . "\n";
  print '<tr><td align="right">Cooking Time:</td>' .
    '<td><input type="text" name="time_val" size=2 maxlength=2>&nbsp;' .
    '<select name="time_units"><option value="minutes">minutes</option>' .
    '<option value="hours">hours</option></select></td></tr>' . "\n";
  print '<tr><td align="right">Serves:</td>' . "\n";
  print '<td><input type="text" name="serves" size=2 maxlength=3></td></tr>' .
    "\n";
  print '<tr><td align="right">Recipe:</td>' . "\n";
  print '<td><textarea class="full" name="recipe_text"></textarea></td></tr>' .
    "\n";
  print '<td>&nbsp;</td><td><input type="submit" value="Submit"></td>' . "\n";
  print '</form></tr></table>' . "\n";
  print '</td>' . "\n";
}

/**
 * Shows a menu allowing the user to update an existing
 * recipe with the Base API update feature.
 */
function showEditMenu() {
  global $cuisines;
  $splitCookingTime = split(" ", $_POST['g:cooking_time']);

  print '<html>' . "\n";
  print '<head><title>PHP Demo: Google Base data 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><th colspan="2" style="text-align:center">Edit recipe:</th></tr>' . "\n";

  print '<form method="post" action="' . $_SERVER[PHP_SELF] . '">' . "\n";
  print '<input type="hidden" name="action" value="update">' . "\n";
  print '<input type="hidden" name="link" value="' .
    $_POST['edit'] . '">' . "\n";
  print '<input type="hidden" name="token" value="' .
    $_POST['token'] . '">' . "\n";

  print '<tr><td align="right">Title:</td>' . "\n";
  print '<td><input type="text" name="recipe_title" class="half" value="'
    . $_POST['title'] . '"></td></tr>' . "\n";

  print '<tr><td align="right">Main ingredient:</td>' . "\n";
  print '<td><input type="text" name="main_ingredient" value="'
    . $_POST['g:main_ingredient'] . '" class="half"></td></tr>' . "\n";

  print '<tr><td align="right">Cuisine:</td>' . "\n";
  print '<td><select name="cuisine" class="half">' . "\n";

  foreach ($cuisines as $curCuisine) {
    print '<option value="' . $curCuisine . '"';
    if($curCuisine == $_POST['g:cuisine']) {
      print ' selected="selected"';
    }
    print '>' . $curCuisine . "</option>\n";
  }

  print '</select></td></tr>' . "\n";
  print '<tr><td align="right">Cooking Time:</td>' .
    '<td><input type="text" name="time_val" size=2 maxlength=2 value="' .
    $splitCookingTime[0] . '">&nbsp;' . "\n";
  print '<select name="time_units">' . "\n";
  if($splitCookingTime[1] == "minutes") {
    print '<option value="minutes" selected="selected">minutes</option>' .
      "\n";
    print '<option value="hours">hours</option>' . "\n";
  } else {
    print '<option value="minutes">minutes</option>' . "\n";
    print '<option value="hours" selected="selected">hours</option>' .
      "\n";
  }

  print '</select></td></tr>' . "\n";
  print '<tr><td align="right">Serves:</td>' . "\n";
  print '<td><input type="text" name="serves" value="' .
    $_POST['g:serving_count'] . '" size=2 maxlength=3></td></tr>' . "\n";

  print '<tr><td align="right">Recipe:</td>' . "\n";
  print '<td><textarea class="full" name="recipe_text">' .
    $_POST['content'] . '</textarea></td></tr>' . "\n";
  print '<td>&nbsp;</td><td><input type="submit" value="Update"></td>' . "\n";
  print '</form></tr></table>' . "\n";
  print '</body></html>' . "\n";
}

/**
 * Displays both the "List of current recipes" and
 * "Insert a new recipe" panels in a single table.
 */
function showMainMenu($tableTitle, $sessionToken) {
  print '<html>' . "\n";
  print '<head><title>PHP Demo: Google Base data 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: 75%;text-align:center">' . "\n";
  print '<tr>' . "\n";
  print '<th colspan="2" style="text-align:center">PHP Demo: Google Base data API' . "\n";
  print '</tr>' . "\n";
  print '<tr><td colspan="2" align="center">' . $tableTitle .
    '</td></tr>' . "\n";
  print '<tr>' . "\n";

  // Create the two sub-tables.
  showRecipeListPane($sessionToken);
  showRecipeInsertPane($sessionToken);

  // Add a "Sign out" link.
  print '<tr><th colspan="2" style="text-align: center">Or click here to' .
    ' <a href="http://www.google.com/accounts/Logout">sign out</a>' .
    ' of your Google account.</th></tr>' . "\n";

  // Close the master table.
  print '</table>' . "\n";
  print '</center></body></html>' . "\n";
}

/**
 * We arrive here after the user first authenticates and we get back
 * a single-use token.
 */
function showFirstAuthScreen() {
  $singleUseToken = $_GET['token'];
  $sessionToken = exchangeToken($singleUseToken);

  if(!$sessionToken) {
    showIntroPage();
  } else {
    $tableTitle =
      'Here\'s your <b>single use token:</b> <code>' . $singleUseToken .
      '</code>' . "\n" . '<br>And here\'s the <b>session token:</b> <code>' .
      $sessionToken . '</code>';
    
      showMainMenu($tableTitle, $sessionToken);
  }
}

/**
 * Main logic. Take action based on the GET and POST
 * parameters, which reflect whether the user has
 * authenticated and which action they want to perform.
 */
if(count($_GET) == 1 && array_key_exists('token', $_GET)) {
  showFirstAuthScreen();
} else {
  if(count($_POST) == 0) {
    showIntroPage();
  } else {
    if($_POST['action'] == 'insert') {
      if(postItem()) {
        showMainMenu('Recipe inserted!', $_POST['token']);
      } else {
        showMainMenu('Recipe insertion failed.', $_POST['token']);
      }
    } else if($_POST['action'] == 'delete') {
      if(deleteItem()) {
        showMainMenu('Recipe deleted.', $_POST['token']);
      } else {
        showMainMenu('Recipe deletion failed.', $_POST['token']);
      }
    } else if($_POST['action'] == 'delete_all') {
      if(batchDelete()) {
        showMainMenu('All recipes deleted.', $_POST['token']);
      } else {
        showMainMenu('Batch deletion failed.', $_POST['token']);
      }
    } else if($_POST['action'] == 'edit') {
      showEditMenu();
    } else if($_POST['action'] == 'update') {
      if(updateItem()) {
        showMainMenu('Recipe successfully updated.', $_POST['token']);
      } else {
        showMainMenu('Recipe update failed.', $_POST['token']);
      }
    } else {
      showIntroPage();
    }
  }
}

?>