text: /* vim: set expandtab sw=4 ts=4 sts=4: */
  /**
   * @fileoverview    function used in table data manipulation pages
   *
   * @requires    jQuery
   * @requires    jQueryUI
   * @requires    js/functions.js
   *
   */
  
  /**
   * Modify form controls when the "NULL" checkbox is checked
   *
   * @param theType     string   the MySQL field type
   * @param urlField    string   the urlencoded field name - OBSOLETE
   * @param md5Field    string   the md5 hashed field name
   * @param multi_edit  string   the multi_edit row sequence number
   *
   * @return boolean  always true
   */
  function nullify(theType, urlField, md5Field, multi_edit)
  {
      var rowForm = document.forms['insertForm'];
  
      if (typeof(rowForm.elements['funcs' + multi_edit + '[' + md5Field + ']']) != 'undefined') {
          rowForm.elements['funcs' + multi_edit + '[' + md5Field + ']'].selectedIndex = -1;
      }
  
      // "ENUM" field with more than 20 characters
      if (theType == 1) {
          rowForm.elements['fields' + multi_edit + '[' + md5Field +  ']'][1].selectedIndex = -1;
      }
      // Other "ENUM" field
      else if (theType == 2) {
          var elts     = rowForm.elements['fields' + multi_edit + '[' + md5Field + ']'];
          // when there is just one option in ENUM:
          if (elts.checked) {
              elts.checked = false;
          } else {
              var elts_cnt = elts.length;
              for (var i = 0; i < elts_cnt; i++) {
                  elts[i].checked = false;
              } // end for
  
          } // end if
      }
      // "SET" field
      else if (theType == 3) {
          rowForm.elements['fields' + multi_edit + '[' + md5Field +  '][]'].selectedIndex = -1;
      }
      // Foreign key field (drop-down)
      else if (theType == 4) {
          rowForm.elements['fields' + multi_edit + '[' + md5Field +  ']'].selectedIndex = -1;
      }
      // foreign key field (with browsing icon for foreign values)
      else if (theType == 6) {
          rowForm.elements['fields' + multi_edit + '[' + md5Field + ']'].value = '';
      }
      // Other field types
      else /*if (theType == 5)*/ {
          rowForm.elements['fields' + multi_edit + '[' + md5Field + ']'].value = '';
      } // end if... else if... else
  
      return true;
  } // end of the 'nullify()' function
  
  
  /**
   * javascript DateTime format validation.
   * its used to prevent adding default (0000-00-00 00:00:00) to database when user enter wrong values
   * Start of validation part
   */
  //function checks the number of days in febuary
  function daysInFebruary(year)
  {
      return (((year % 4 === 0) && (((year % 100 !== 0)) || (year % 400 === 0))) ? 29 : 28);
  }
  //function to convert single digit to double digit
  function fractionReplace(num)
  {
      num = parseInt(num, 10);
      return num >= 1 && num <= 9 ? '0' + num : '00';
  }
  
  /* function to check the validity of date
  * The following patterns are accepted in this validation (accepted in mysql as well)
  * 1) 2001-12-23
  * 2) 2001-1-2
  * 3) 02-12-23
  * 4) And instead of using '-' the following punctuations can be used (+,.,*,^,@,/) All these are accepted by mysql as well. Therefore no issues
  */
  function isDate(val, tmstmp)
  {
      val = val.replace(/[.|*|^|+|//|@]/g, '-');
      var arrayVal = val.split("-");
      for (var a = 0; a < arrayVal.length; a++) {
          if (arrayVal[a].length == 1) {
              arrayVal[a] = fractionReplace(arrayVal[a]);
          }
      }
      val = arrayVal.join("-");
      var pos = 2;
      var dtexp = new RegExp(/^([0-9]{4})-(((01|03|05|07|08|10|12)-((0[0-9])|([1-2][0-9])|(3[0-1])))|((02|04|06|09|11)-((0[0-9])|([1-2][0-9])|30)))$/);
      if (val.length == 8) {
          pos = 0;
      }
      if (dtexp.test(val)) {
          var month = parseInt(val.substring(pos + 3, pos + 5), 10);
          var day = parseInt(val.substring(pos + 6, pos + 8), 10);
          var year = parseInt(val.substring(0, pos + 2), 10);
          if (month == 2 && day > daysInFebruary(year)) {
              return false;
          }
          if (val.substring(0, pos + 2).length == 2) {
              year = parseInt("20" + val.substring(0, pos + 2), 10);
          }
          if (tmstmp === true) {
              if (year < 1978) {
                  return false;
              }
              if (year > 2038 || (year > 2037 && day > 19 && month >= 1) || (year > 2037 && month > 1)) {
                  return false;
              }
          }
      } else {
          return false;
      }
      return true;
  }
  
  /* function to check the validity of time
  * The following patterns are accepted in this validation (accepted in mysql as well)
  * 1) 2:3:4
  * 2) 2:23:43
  * 3) 2:23:43.123456
  */
  function isTime(val)
  {
      var arrayVal = val.split(":");
      for (var a = 0, l = arrayVal.length; a < l; a++) {
          if (arrayVal[a].length == 1) {
              arrayVal[a] = fractionReplace(arrayVal[a]);
          }
      }
      val = arrayVal.join(":");
      var tmexp = new RegExp(/^(([0-1][0-9])|(2[0-3])):((0[0-9])|([1-5][0-9])):((0[0-9])|([1-5][0-9]))(\.[0-9]{1,6}){0,1}$/);
      return tmexp.test(val);
  }
  
  function verificationsAfterFieldChange(urlField, multi_edit, theType)
  {
      var evt = window.event || arguments.callee.caller.arguments[0];
      var target = evt.target || evt.srcElement;
  
      //To generate the textbox that can take the salt
      var new_salt_box = "<br><input type=text name=salt[multi_edit][" + multi_edit + "][" + urlField + "]" +
          " id=salt_" + target.id + " placeholder='enter Salt'>";
  
      //If AES_ENCRYPT is Selected then append the new textbox for salt
      if (target.value == "AES_ENCRYPT" && !($("#salt_" + target.id).length)) {
          $("input[name='fields[multi_edit][" + multi_edit + "][" + urlField + "]']").after(new_salt_box);
      } else {
          //The value of the select is no longer AES_ENCRYPT, remove the textbox for salt
          $("#salt_" + target.id).remove();
      }
  
      // Unchecks the corresponding "NULL" control
      $("input[name='fields_null[multi_edit][" + multi_edit + "][" + urlField + "]']").prop('checked', false);
  
      // Unchecks the Ignore checkbox for the current row
      $("input[name='insert_ignore_" + multi_edit + "']").prop('checked', false);
      var $this_input = $("input[name='fields[multi_edit][" + multi_edit + "][" + urlField + "]']");
  
      // Does this field come from datepicker?
      if ($this_input.data('comes_from') == 'datepicker') {
          // Yes, so do not validate because the final value is not yet in
          // the field and hopefully the datepicker returns a valid date+time
          $this_input.removeClass("invalid_value");
          return true;
      }
  
      if (target.name.substring(0, 6) == "fields") {
          // validate for date time
          if (theType == "datetime" || theType == "time" || theType == "date" || theType == "timestamp") {
              $this_input.removeClass("invalid_value");
              var dt_value = $this_input.val();
              if (theType == "date") {
                  if (! isDate(dt_value)) {
                      $this_input.addClass("invalid_value");
                      return false;
                  }
              } else if (theType == "time") {
                  if (! isTime(dt_value)) {
                      $this_input.addClass("invalid_value");
                      return false;
                  }
              } else if (theType == "datetime" || theType == "timestamp") {
                  var tmstmp = false;
                  if (dt_value == "CURRENT_TIMESTAMP") {
                      return true;
                  }
                  if (theType == "timestamp") {
                      tmstmp = true;
                  }
                  if (dt_value == "0000-00-00 00:00:00") {
                      return true;
                  }
                  var dv = dt_value.indexOf(" ");
                  if (dv == -1) {
                      $this_input.addClass("invalid_value");
                      return false;
                  } else {
                      if (! (isDate(dt_value.substring(0, dv), tmstmp) && isTime(dt_value.substring(dv + 1)))) {
                          $this_input.addClass("invalid_value");
                          return false;
                      }
                  }
              }
          }
          //validate for integer type
          if (theType.substring(0, 3) == "int") {
              $this_input.removeClass("invalid_value");
              if (isNaN($this_input.val())) {
                  $this_input.addClass("invalid_value");
                  return false;
              }
          }
      }
  }
   /* End of datetime validation*/
  
  
  /**
   * Unbind all event handlers before tearing down a page
   */
  AJAX.registerTeardown('tbl_change.js', function () {
      $('span.open_gis_editor').die('click');
      $("input[name='gis_data[save]']").die('click');
      $('input.checkbox_null').die('click');
      $('select[name="submit_type"]').unbind('change');
      $("#insert_rows").die('change');
  });
  
  /**
   * Ajax handlers for Change Table page
   *
   * Actions Ajaxified here:
   * Submit Data to be inserted into the table.
   * Restart insertion with 'N' rows.
   */
  AJAX.registerOnload('tbl_change.js', function () {
      $.datepicker.initialized = false;
  
      $('span.open_gis_editor').live('click', function (event) {
          event.preventDefault();
  
          var $span = $(this);
          // Current value
          var value = $span.parent('td').children("input[type='text']").val();
          // Field name
          var field = $span.parents('tr').children('td:first').find("input[type='hidden']").val();
          // Column type
          var type = $span.parents('tr').find('span.column_type').text();
          // Names of input field and null checkbox
          var input_name = $span.parent('td').children("input[type='text']").attr('name');
          //Token
          var token = $("input[name='token']").val();
  
          openGISEditor();
          if (!gisEditorLoaded) {
              loadJSAndGISEditor(value, field, type, input_name, token);
          } else {
              loadGISEditor(value, field, type, input_name, token);
          }
      });
  
      /**
       * Uncheck the null checkbox as geometry data is placed on the input field
       */
      $("input[name='gis_data[save]']").live('click', function (event) {
          var input_name = $('form#gis_data_editor_form').find("input[name='input_name']").val();
          var $null_checkbox = $("input[name='" + input_name + "']").parents('tr').find('.checkbox_null');
          $null_checkbox.prop('checked', false);
      });
  
      /**
       * Handles all current checkboxes for Null; this only takes care of the
       * checkboxes on currently displayed rows as the rows generated by
       * "Continue insertion" are handled in the "Continue insertion" code
       *
       */
      $('input.checkbox_null').live('click', function (e) {
          nullify(
              // use hidden fields populated by tbl_change.php
              $(this).siblings('.nullify_code').val(),
              $(this).closest('tr').find('input:hidden').first().val(),
              $(this).siblings('.hashed_field').val(),
              $(this).siblings('.multi_edit').val()
          );
      });
  
  
      /**
       * Reset the auto_increment column to 0 when selecting any of the
       * insert options in submit_type-dropdown. Only perform the reset
       * when we are in edit-mode, and not in insert-mode(no previous value
       * available).
       */
      $('select[name="submit_type"]').bind('change', function (e) {
          var $table = $('table.insertRowTable');
          var auto_increment_column = $table.find('input[name^="auto_increment"]').attr('name');
          if (auto_increment_column) {
              var prev_value_field = $table.find('input[name="' + auto_increment_column.replace('auto_increment', 'fields_prev') + '"]');
              var value_field = $table.find('input[name="' + auto_increment_column.replace('auto_increment', 'fields') + '"]');
              var previous_value = $(prev_value_field).val();
              if (previous_value !== undefined) {
                  if ($(this).val() == 'insert' || $(this).val() == 'insertignore' || $(this).val() == 'showinsert') {
                      $(value_field).val(0);
                  } else {
                      $(value_field).val(previous_value);
                  }
              }
          }
      });
  
      /**
       * Continue Insertion form
       */
      $("#insert_rows").live('change', function (event) {
          event.preventDefault();
  
          /**
           * @var curr_rows   Number of current insert rows already on page
           */
          var curr_rows = $("table.insertRowTable").length;
          /**
           * @var target_rows Number of rows the user wants
           */
          var target_rows = $("#insert_rows").val();
  
          // remove all datepickers
          $('input.datefield, input.datetimefield').each(function () {
              $(this).datepicker('destroy');
          });
  
          if (curr_rows < target_rows) {
              while (curr_rows < target_rows) {
  
                  /**
                   * @var $last_row    Object referring to the last row
                   */
                  var $last_row = $("#insertForm").find(".insertRowTable:last");
  
                  // need to access this at more than one level
                  // (also needs improvement because it should be calculated
                  //  just once per cloned row, not once per column)
                  var new_row_index = 0;
  
                  //Clone the insert tables
                  $last_row
                  .clone()
                  .insertBefore("#actions_panel")
                  .find('input[name*=multi_edit],select[name*=multi_edit],textarea[name*=multi_edit]')
                  .each(function () {
  
                      var $this_element = $(this);
                      /**
                       * Extract the index from the name attribute for all input/select fields and increment it
                       * name is of format funcs[multi_edit][10][<long random string of alphanum chars>]
                       */
  
                      /**
                       * @var this_name   String containing name of the input/select elements
                       */
                      var this_name = $this_element.attr('name');
                      /** split {@link this_name} at [10], so we have the parts that can be concatenated later */
                      var name_parts = this_name.split(/\[\d+\]/);
                      /** extract the [10] from  {@link name_parts} */
                      var old_row_index_string = this_name.match(/\[\d+\]/)[0];
                      /** extract 10 - had to split into two steps to accomodate double digits */
                      var old_row_index = parseInt(old_row_index_string.match(/\d+/)[0], 10);
  
                      /** calculate next index i.e. 11 */
                      new_row_index = old_row_index + 1;
                      /** generate the new name i.e. funcs[multi_edit][11][foobarbaz] */
                      var new_name = name_parts[0] + '[' + new_row_index + ']' + name_parts[1];
  
                      var hashed_field = name_parts[1].match(/\[(.+)\]/)[1];
                      $this_element.attr('name', new_name);
  
                      // handle input text fields and textareas
                      if ($this_element.is('.textfield') || $this_element.is('.char')) {
                          // do not remove the 'value' attribute for ENUM columns
                          if ($this_element.closest('tr').find('span.column_type').html() != 'enum') {
                              $this_element.val($this_element.closest('tr').find('span.default_value').html());
                          }
                          $this_element
                          .unbind('change')
                          // Remove onchange attribute that was placed
                          // by tbl_change.php; it refers to the wrong row index
                          .attr('onchange', null)
                          // Keep these values to be used when the element
                          // will change
                          .data('hashed_field', hashed_field)
                          .data('new_row_index', new_row_index)
                          .bind('change', function (e) {
                              var $changed_element = $(this);
                              verificationsAfterFieldChange(
                                  $changed_element.data('hashed_field'),
                                  $changed_element.data('new_row_index'),
                                  $changed_element.closest('tr').find('span.column_type').html()
                              );
                          });
                      }
  
                      if ($this_element.is('.checkbox_null')) {
                          $this_element
                          // this event was bound earlier by jQuery but
                          // to the original row, not the cloned one, so unbind()
                          .unbind('click')
                          // Keep these values to be used when the element
                          // will be clicked
                          .data('hashed_field', hashed_field)
                          .data('new_row_index', new_row_index)
                          .bind('click', function (e) {
                              var $changed_element = $(this);
                              nullify(
                                  $changed_element.siblings('.nullify_code').val(),
                                  $this_element.closest('tr').find('input:hidden').first().val(),
                                  $changed_element.data('hashed_field'),
                                  '[multi_edit][' + $changed_element.data('new_row_index') + ']'
                              );
                          });
                      }
                  }) // end each
                  .end()
                  .find('.foreign_values_anchor')
                  .each(function () {
                          var $anchor = $(this);
                          var new_value = 'rownumber=' + new_row_index;
                          // needs improvement in case something else inside
                          // the href contains this pattern
                          var new_href = $anchor.attr('href').replace(/rownumber=\d+/, new_value);
                          $anchor.attr('href', new_href);
                      });
  
                  //Insert/Clone the ignore checkboxes
                  if (curr_rows == 1) {
                      $('<input id="insert_ignore_1" type="checkbox" name="insert_ignore_1" checked="checked" />')
                      .insertBefore("table.insertRowTable:last")
                      .after('<label for="insert_ignore_1">' + PMA_messages.strIgnore + '</label>');
                  } else {
  
                      /**
                       * @var $last_checkbox   Object reference to the last checkbox in #insertForm
                       */
                      var $last_checkbox = $("#insertForm").children('input:checkbox:last');
  
                      /** name of {@link $last_checkbox} */
                      var last_checkbox_name = $last_checkbox.attr('name');
                      /** index of {@link $last_checkbox} */
                      var last_checkbox_index = parseInt(last_checkbox_name.match(/\d+/), 10);
                      /** name of new {@link $last_checkbox} */
                      var new_name = last_checkbox_name.replace(/\d+/, last_checkbox_index + 1);
  
                      $last_checkbox
                      .clone()
                      .attr({'id': new_name, 'name': new_name})
                      .prop('checked', true)
                      .add('label[for^=insert_ignore]:last')
                      .clone()
                      .attr('for', new_name)
                      .before('<br />')
                      .insertBefore("table.insertRowTable:last");
                  }
                  curr_rows++;
              }
              // recompute tabindex for text fields and other controls at footer;
              // IMO it's not really important to handle the tabindex for
              // function and Null
              var tabindex = 0;
              $('.textfield, .char, textarea')
              .each(function () {
                  tabindex++;
                  $(this).attr('tabindex', tabindex);
                  // update the IDs of textfields to ensure that they are unique
                  $(this).attr('id', "field_" + tabindex + "_3");
              });
              $('.control_at_footer')
              .each(function () {
                  tabindex++;
                  $(this).attr('tabindex', tabindex);
              });
              // Add all the required datepickers back
              $('input.datefield, input.datetimefield').each(function () {
                  PMA_addDatepicker($(this));
              });
          } else if (curr_rows > target_rows) {
              while (curr_rows > target_rows) {
                  $("input[id^=insert_ignore]:last")
                  .nextUntil("fieldset")
                  .andSelf()
                  .remove();
                  curr_rows--;
              }
          }
      });
  });
  
  function changeValueFieldType(elem, searchIndex)
  {
      var fieldsValue = $("select#fieldID_" + searchIndex);
      if (0 == fieldsValue.size()) {
          return;
      }
  
      var type = $(elem).val();
      if (
          'IN (...)' == type
          || 'NOT IN (...)' == type
          || 'BETWEEN' == type
          || 'NOT BETWEEN' == type
      ) {
          $("#fieldID_" + searchIndex).attr('multiple', '');
      } else {
          $("#fieldID_" + searchIndex).removeAttr('multiple');
      }
  }
  