BiblioField.php

<?php
/* This file is part of a copyrighted work; it is distributed with NO WARRANTY.
 * See the file COPYRIGHT.html for more details.
 */
 
  require_once("../classes/Localize.php");

/******************************************************************************
 * UsmarcField represents a library bibliography subfield.  Contains business rules for
 * subfield data validation.
 *
 * @author David Stevens <dave@stevens.name>;
 * @version 1.0
 * @access public
 ******************************************************************************
 */
class BiblioField {
  var $_bibid = "";
  var $_fieldid = "";
  var $_tag = "";
  var $_tagError = "";
  var $_ind1Cd = "";
  var $_ind2Cd = "";
  var $_subfieldCd = "";
  var $_subfieldCdError = "";
  var $_fieldData = "";
  var $_fieldDataError = "";
  var $_isRequired = false;
  var $_isRepeatable = false;

  /****************************************************************************
   * @return boolean true if data is valid, otherwise false.
   * @access public
   ****************************************************************************
   */
  function validateData() {
    $loc = new Localize(OBIB_LOCALE,"classes");
    $valid = true;
    if (($this->_isRequired ) and ($this->_fieldData == "")) {
      $valid = false;
      $this->_fieldDataError = $loc->getText("biblioFieldError1");
    }
    if ($this->_tag == "") {
      $valid = false;
      $this->_tagError = $loc->getText("biblioFieldError1");
    } else if (!is_numeric($this->_tag)) {
      $valid = false;
      $this->_tagError = $loc->getText("biblioFieldError2");
    }
    if ($this->_subfieldCd == "") {
      $valid = false;
      $this->_subfieldCdError = $loc->getText("biblioFieldError1");
    }
    // Check for image
    if ($this->getTag() == "902" && $this->getSubfieldCd() == "a") {
      $fieldData = $this->getFieldData();
      if (!empty($fieldData)) {
        if ($fieldData['uselookup'] === true) { // Override with cover lookup
          $isbn = $fieldData['isbn'];
          require_once("BiblioCoverQuery.php");
          $cq = new BiblioCoverQuery();
          $path = $cq->lookup($isbn, "large");
          if (!$path) {
            $this->_fieldDataError = $loc->getText("biblioFieldErrorCoverLookupFailed");
            $valid = false;
          }
          else {
            $filename = $cq->save($path, 0);
            $this->setFieldData($filename);
          }
        }
        else {
          $index = $this->getTag().$this->getSubfieldCd();
          if (!empty($fieldData["tmp_name"][$index])) {
            if ($info = getimagesize($fieldData["tmp_name"][$index])) {
              $filename = $fieldData["name"][$index];
              $filename_parts = explode(".", $filename);
              unset($filename_parts[count($filename_parts) - 1]);
              $filename = implode("-", $filename_parts);
              $allow_types = array(
                'image/jpeg',
                'image/png',
                'image/gif',
              );
              // If file type is allowed
              if (in_array($info["mime"], $allow_types)) {
                // Create directory when necessary, raise error when failed to create "not exist" one.
                if (!(is_dir('../' . COVER_PATH) || is_dir('../' . COVER_PATH_TMP))) {
                  $dir_error = FALSE;
                  if (is_dir('../' . dirname(COVER_PATH))) {
                    // Create new one.
                    $cover_path = @mkdir('../' . COVER_PATH, 0777);
                    $tmp_path = @mkdir('../' . COVER_PATH_TMP, 0777);
                    
                    if (!$cover_path) {
                      if (is_dir('../' . COVER_PATH)) {
                        if (decoct(fileperms('../' . COVER_PATH)) != 0777) {
                          $force_chmod = @chmod('../' . COVER_PATH, 0777);
                          if (!$force_chmod) {
                            $dir_error = TRUE;
                          }
                        }
                      }
                      else {
                        $dir_error = TRUE;
                      }
                    }
                    
                    if (!$tmp_path) {
                      if (is_dir('../' . COVER_PATH_TMP)) {
                        if (decoct(fileperms('../' . COVER_PATH_TMP)) != 0777) {
                          $force_chmod = @chmod('../' . COVER_PATH_TMP, 0777);
                          if (!$force_chmod) {
                            $dir_error = TRUE;
                          }
                        }
                      }
                      else {
                        $dir_error = TRUE;
                      }
                    }
                    
                    if ($dir_error) {
                      print_r('<span style="color: red"><strong>Error:</strong> Failed to save book cover! please set chmod 777 to /media directory.</span><br />');
                      return false;
                    }
                  }
                }
                $ext = image_type_to_extension($info[2]);
                $tmp = md5($filename.session_id().time());
                $filename = $filename."_".substr($tmp, strlen($tmp) - 7, strlen($tmp)).$ext;
                $filepath = "../" . COVER_PATH . "/$filename";
                copy($fieldData["tmp_name"][$index], $filepath);
                make_thumbnail($filepath, array('height' => 160));
                $this->setFieldData($filename);
              }
              else {
                $valid = false;
                $this->_fieldDataError = $loc->getText("biblioFieldErrorPictureType");
              }
            }
            else {
              $valid = false;
              $this->_fieldDataError = $loc->getText("biblioFieldErrorPictureLoadFailed");
            }
          }
        }
      }
      else {
      }
    }
    /* Check existing ISBN items */
    else if ($this->getTag() == "20" && $this->getSubfieldCd() == "a") {
      require_once("../classes/BiblioQuery.php");
      $biblio = new BiblioQuery();
      
      $existBibId = $biblio->ISBNExists($this->getFieldData());
      if ($existBibId && $this->_bibid != $existBibId) {
        $valid = false;
        $this->_fieldDataError = $loc->getText("biblioFieldErrorDuplicatedISBN") . ' <a href="../shared/biblio_view.php?bibid=' . $existBibId . '&tab=cataloging">' . $loc->getText("biblioFieldViewExistingISBN") . '</a>';
      }
    }
    unset($loc);
    return $valid;
  }

  /****************************************************************************
   * Getter methods for all fields
   * @return string
   * @access public
   ****************************************************************************
   */
  function getBibid() {
    return $this->_bibid;
  }
  function getFieldid() {
    return $this->_fieldid;
  }
  function getTag() {
    return $this->_tag;
  }
  function getTagError() {
    return $this->_tagError;
  }
  function getInd1Cd() {
    return $this->_ind1Cd;
  }
  function getInd2Cd() {
    return $this->_ind2Cd;
  }
  function getSubfieldCd() {
    return $this->_subfieldCd;
  }
  function getSubfieldCdError() {
    return $this->_subfieldCdError;
  }
  function getFieldData() {
    return $this->_fieldData;
  }
  function getFieldDataError() {
    return $this->_fieldDataError;
  }
  function isRequired() {
    if ($this->_isRequired) {
      return true;
    } else {
      return false;
    }
  }
  function isRepeatable() {
    if ($this->_isRepeatable) {
      return true;
    } else {
      return false;
    }
  }

  /****************************************************************************
   * Setter methods for all fields
   * @param string $value new value to set
   * @return void
   * @access public
   ****************************************************************************
   */
  function setBibid($value) {
    $this->_bibid = trim($value);
  }
  function setFieldid($value) {
    $this->_fieldid = trim($value);
  }
  function setTag($value) {
    $this->_tag = trim($value);
  }
  function setInd1Cd($value) {
    $this->_ind1Cd = substr(trim($value),0,1);
  }
  function setInd2Cd($value) {
    $this->_ind2Cd = substr(trim($value),0,1);
  }
  function setSubfieldCd($value) {
    $this->_subfieldCd = substr(trim($value),0,1);
  }
  function setFieldData($value) {
    $this->_fieldData = is_array($value) ? $value : trim($value);
  }
  function setFieldDataError($value) {
    $this->_fieldDataError = trim($value);
  }
  function setIsRequired($value) {
    if ($value) {
      $this->_isRequired = true;
    } else {
      $this->_isRequired = false;
    }
  }
  function setIsRepeatable($value) {
    if ($value) {
      $this->_isRepeatable = true;
    } else {
      $this->_isRepeatable = false;
    }
  }
}

?>