| Current File : /home/tradevaly/new.tradevaly.com.bd/phpmy/js/src/table/relation.js |
/**
* for table relation
*/
var TableRelation = {};
TableRelation.showHideClauses = function ($thisDropdown) {
if ($thisDropdown.val() === '') {
$thisDropdown.parent().nextAll('span').hide();
} else {
if ($thisDropdown.is('select[name^="destination_foreign_column"]')) {
$thisDropdown.parent().nextAll('span').show();
}
}
};
/**
* Sets dropdown options to values
* @param $dropdown
* @param values
* @param selectedValue
* @return {void}
*/
TableRelation.setDropdownValues = function ($dropdown, values, selectedValue) {
$dropdown.empty();
var optionsAsString = '';
// add an empty string to the beginning for empty selection
values.unshift('');
$.each(values, function () {
optionsAsString += '<option value=\'' + Functions.escapeHtml(this) + '\'' + (selectedValue === Functions.escapeHtml(this) ? ' selected=\'selected\'' : '') + '>' + Functions.escapeHtml(this) + '</option>';
});
$dropdown.append($(optionsAsString));
};
/**
* Retrieves and populates dropdowns to the left based on the selected value
*
* @param $dropdown the dropdown whose value got changed
* @return {void}
*/
TableRelation.getDropdownValues = function ($dropdown) {
var foreignDb = null;
var foreignTable = null;
var $databaseDd;
var $tableDd;
var $columnDd;
var foreign = '';
// if the changed dropdown is for foreign key constraints
if ($dropdown.is('select[name^="destination_foreign"]')) {
$databaseDd = $dropdown.parent().parent().parent().find('select[name^="destination_foreign_db"]');
$tableDd = $dropdown.parent().parent().parent().find('select[name^="destination_foreign_table"]');
$columnDd = $dropdown.parent().parent().parent().find('select[name^="destination_foreign_column"]');
foreign = '_foreign';
} else { // internal relations
$databaseDd = $dropdown.parent().find('select[name^="destination_db"]');
$tableDd = $dropdown.parent().find('select[name^="destination_table"]');
$columnDd = $dropdown.parent().find('select[name^="destination_column"]');
}
// if the changed dropdown is a database selector
if ($dropdown.is('select[name^="destination' + foreign + '_db"]')) {
foreignDb = $dropdown.val();
// if no database is selected empty table and column dropdowns
if (foreignDb === '') {
TableRelation.setDropdownValues($tableDd, []);
TableRelation.setDropdownValues($columnDd, []);
return;
}
} else { // if a table selector
foreignDb = $databaseDd.val();
foreignTable = $dropdown.val();
// if no table is selected empty the column dropdown
if (foreignTable === '') {
TableRelation.setDropdownValues($columnDd, []);
return;
}
}
var $msgbox = Functions.ajaxShowMessage();
var $form = $dropdown.parents('form');
var $db = $form.find('input[name="db"]').val();
var $table = $form.find('input[name="table"]').val();
var argsep = CommonParams.get('arg_separator');
var params = 'getDropdownValues=true' + argsep + 'ajax_request=true' +
argsep + 'db=' + encodeURIComponent($db) +
argsep + 'table=' + encodeURIComponent($table) +
argsep + 'foreign=' + (foreign !== '') +
argsep + 'foreignDb=' + encodeURIComponent(foreignDb) +
(foreignTable !== null ?
argsep + 'foreignTable=' + encodeURIComponent(foreignTable) : ''
);
var $server = $form.find('input[name="server"]');
if ($server.length > 0) {
params += argsep + 'server=' + $form.find('input[name="server"]').val();
}
$.ajax({
type: 'POST',
url: 'index.php?route=/table/relation',
data: params,
dataType: 'json',
success: function (data) {
Functions.ajaxRemoveMessage($msgbox);
if (typeof data !== 'undefined' && data.success) {
// if the changed dropdown is a database selector
if (foreignTable === null) {
// set values for table and column dropdowns
TableRelation.setDropdownValues($tableDd, data.tables);
TableRelation.setDropdownValues($columnDd, []);
} else { // if a table selector
// set values for the column dropdown
var primary = null;
if (typeof data.primary !== 'undefined'
&& 1 === data.primary.length
) {
primary = data.primary[0];
}
TableRelation.setDropdownValues($columnDd.first(), data.columns, primary);
TableRelation.setDropdownValues($columnDd.slice(1), data.columns);
}
} else {
Functions.ajaxShowMessage(data.error, false);
}
}
});
};
/**
* Unbind all event handlers before tearing down a page
*/
AJAX.registerTeardown('table/relation.js', function () {
$('body').off('change',
'select[name^="destination_db"], ' +
'select[name^="destination_table"], ' +
'select[name^="destination_foreign_db"], ' +
'select[name^="destination_foreign_table"]'
);
$('body').off('click', 'a.add_foreign_key_field');
$('body').off('click', 'a.add_foreign_key');
$('a.drop_foreign_key_anchor.ajax').off('click');
});
AJAX.registerOnload('table/relation.js', function () {
/**
* Ajax event handler to fetch table/column dropdown values.
*/
$('body').on('change',
'select[name^="destination_db"], ' +
'select[name^="destination_table"], ' +
'select[name^="destination_foreign_db"], ' +
'select[name^="destination_foreign_table"]',
function () {
TableRelation.getDropdownValues($(this));
}
);
/**
* Ajax event handler to add a column to a foreign key constraint.
*/
$('body').on('click', 'a.add_foreign_key_field', function (event) {
event.preventDefault();
event.stopPropagation();
// Add field.
$(this)
.prev('span')
.clone(true, true)
.insertBefore($(this))
.find('select')
.val('');
// Add foreign field.
var $sourceElem = $('select[name^="destination_foreign_column[' +
$(this).attr('data-index') + ']"]').last().parent();
$sourceElem
.clone(true, true)
.insertAfter($sourceElem)
.find('select')
.val('');
});
/**
* Ajax event handler to add a foreign key constraint.
*/
$('body').on('click', 'a.add_foreign_key', function (event) {
event.preventDefault();
event.stopPropagation();
var $prevRow = $(this).closest('tr').prev('tr');
var $newRow = $prevRow.clone(true, true);
// Update serial number.
var currIndex = $newRow
.find('a.add_foreign_key_field')
.attr('data-index');
var newIndex = parseInt(currIndex) + 1;
$newRow.find('a.add_foreign_key_field').attr('data-index', newIndex);
// Update form parameter names.
$newRow.find('select[name^="foreign_key_fields_name"]')
.not($newRow.find('select[name^="foreign_key_fields_name"]').first())
.find('select[name^="destination_foreign_column"]')
.not($newRow.find('select[name^="foreign_key_fields_name"]')
.not($newRow.find('select[name^="foreign_key_fields_name"]').first())
.find('select[name^="destination_foreign_column"]').first()
).each(function () {
$(this).parent().remove();
});
$newRow.find('input, select').each(function () {
$(this).attr('name',
$(this).attr('name').replace(/\d/, newIndex)
);
});
$newRow.find('input[type="text"]').each(function () {
$(this).val('');
});
// Finally add the row.
$newRow.insertAfter($prevRow);
});
/**
* Ajax Event handler for 'Drop Foreign key'
*/
$('a.drop_foreign_key_anchor.ajax').on('click', function (event) {
event.preventDefault();
var $anchor = $(this);
// Object containing reference to the current field's row
var $currRow = $anchor.parents('tr');
var dropQuery = Functions.escapeHtml(
$currRow.children('td')
.children('.drop_foreign_key_msg')
.val()
);
var question = Functions.sprintf(Messages.strDoYouReally, dropQuery);
$anchor.confirm(question, $anchor.attr('href'), function (url) {
var $msg = Functions.ajaxShowMessage(Messages.strDroppingForeignKey, false);
var params = Functions.getJsConfirmCommonParam(this, $anchor.getPostData());
$.post(url, params, function (data) {
if (data.success === true) {
Functions.ajaxRemoveMessage($msg);
CommonActions.refreshMain(false, function () {
// Do nothing
});
} else {
Functions.ajaxShowMessage(Messages.strErrorProcessingRequest + ' : ' + data.error, false);
}
}); // end $.post()
});
}); // end Drop Foreign key
var windowWidth = $(window).width();
$('.jsresponsive').css('max-width', (windowWidth - 35) + 'px');
});