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234
#pma/js/tbl_relation.js
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234
#pma/js/tbl_relation.js
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* for tbl_relation.php
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*
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*/
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function show_hide_clauses($thisDropdown)
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{
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if ($thisDropdown.val() === '') {
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$thisDropdown.parent().nextAll('span').hide();
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} else {
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if ($thisDropdown.is('select[name^="destination_foreign_column"]')) {
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$thisDropdown.parent().nextAll('span').show();
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}
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}
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}
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/**
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* Sets dropdown options to values
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*/
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function setDropdownValues($dropdown, values, selectedValue) {
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$dropdown.empty();
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var optionsAsString = '';
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// add an empty string to the beginning for empty selection
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values.unshift('');
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$.each(values, function () {
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optionsAsString += "<option value='" + escapeHtml(this) + "'" + (selectedValue == this ? " selected='selected'" : "") + ">" + escapeHtml(this) + "</option>";
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});
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$dropdown.append($(optionsAsString));
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}
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/**
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* Retrieves and populates dropdowns to the left based on the selected value
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*
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* @param $dropdown the dropdown whose value got changed
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*/
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function getDropdownValues($dropdown) {
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var foreignDb = null, foreignTable = null;
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var $databaseDd, $tableDd, $columnDd;
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var foreign = '';
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// if the changed dropdown is for foreign key constraints
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if ($dropdown.is('select[name^="destination_foreign"]')) {
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$databaseDd = $dropdown.parent().parent().parent().find('select[name^="destination_foreign_db"]');
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$tableDd = $dropdown.parent().parent().parent().find('select[name^="destination_foreign_table"]');
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$columnDd = $dropdown.parent().parent().parent().find('select[name^="destination_foreign_column"]');
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foreign = '_foreign';
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} else { // internal relations
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$databaseDd = $dropdown.parent().find('select[name^="destination_db"]');
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$tableDd = $dropdown.parent().find('select[name^="destination_table"]');
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$columnDd = $dropdown.parent().find('select[name^="destination_column"]');
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}
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// if the changed dropdown is a database selector
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if ($dropdown.is('select[name^="destination' + foreign + '_db"]')) {
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foreignDb = $dropdown.val();
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// if no database is selected empty table and column dropdowns
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if (foreignDb === '') {
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setDropdownValues($tableDd, []);
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setDropdownValues($columnDd, []);
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return;
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}
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} else { // if a table selector
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foreignDb = $databaseDd.val();
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foreignTable = $dropdown.val();
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// if no table is selected empty the column dropdown
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if (foreignTable === '') {
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setDropdownValues($columnDd, []);
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return;
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}
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}
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var $msgbox = PMA_ajaxShowMessage();
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var $form = $dropdown.parents('form');
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var url = 'tbl_relation.php?getDropdownValues=true&ajax_request=true' +
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'&token=' + $form.find('input[name="token"]').val() +
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'&db=' + $form.find('input[name="db"]').val() +
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'&table=' + $form.find('input[name="table"]').val() +
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'&foreign=' + (foreign !== '') +
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'&foreignDb=' + encodeURIComponent(foreignDb) +
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(foreignTable !== null ?
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'&foreignTable=' + encodeURIComponent(foreignTable) : ''
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);
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var $server = $form.find('input[name="server"]');
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if ($server.length > 0) {
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url += '&server=' + $form.find('input[name="server"]').val();
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}
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$.ajax({
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url: url,
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datatype: 'json',
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success: function (data) {
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PMA_ajaxRemoveMessage($msgbox);
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if (typeof data !== 'undefined' && data.success) {
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// if the changed dropdown is a database selector
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if (foreignTable === null) {
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// set values for table and column dropdowns
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setDropdownValues($tableDd, data.tables);
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setDropdownValues($columnDd, []);
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} else { // if a table selector
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// set values for the column dropdown
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var primary = null;
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if (typeof data.primary !== 'undefined'
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&& 1 === data.primary.length
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) {
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primary = data.primary[0];
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}
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setDropdownValues($columnDd, data.columns, primary);
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}
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} else {
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PMA_ajaxShowMessage(data.error, false);
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}
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}
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});
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}
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/**
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* Unbind all event handlers before tearing down a page
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*/
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AJAX.registerTeardown('tbl_relation.js', function () {
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$('body').off('change',
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'select[name^="destination_db"], ' +
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'select[name^="destination_table"], ' +
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'select[name^="destination_foreign_db"], ' +
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'select[name^="destination_foreign_table"]'
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);
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$('body').off('click', 'a.add_foreign_key_field');
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$('body').off('click', 'a.add_foreign_key');
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$('a.drop_foreign_key_anchor.ajax').off('click');
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});
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AJAX.registerOnload('tbl_relation.js', function () {
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/**
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* Ajax event handler to fetch table/column dropdown values.
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*/
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$('body').on('change',
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'select[name^="destination_db"], ' +
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'select[name^="destination_table"], ' +
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'select[name^="destination_foreign_db"], ' +
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'select[name^="destination_foreign_table"]',
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function () {
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getDropdownValues($(this));
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}
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);
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/**
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* Ajax event handler to add a column to a foreign key constraint.
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*/
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$('body').on('click', 'a.add_foreign_key_field', function (event) {
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event.preventDefault();
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event.stopPropagation();
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// Add field.
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$(this)
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.prev('span')
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.clone(true, true)
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.insertBefore($(this))
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.find('select')
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.val('');
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// Add foreign field.
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var $source_elem = $('select[name^="destination_foreign_column[' +
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$(this).attr('data-index') + ']"]:last').parent();
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$source_elem
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.clone(true, true)
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.insertAfter($source_elem)
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.find('select')
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.val('');
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});
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/**
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* Ajax event handler to add a foreign key constraint.
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*/
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$('body').on('click', 'a.add_foreign_key', function (event) {
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event.preventDefault();
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event.stopPropagation();
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var $prev_row = $(this).closest('tr').prev('tr');
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var odd_even = ($prev_row.attr('class') == 'odd') ? 'even' : 'odd';
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var $new_row = $prev_row.clone(true, true).attr('class', odd_even);
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// Update serial number.
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var curr_index = $new_row
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.find('a.add_foreign_key_field')
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.attr('data-index');
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var new_index = parseInt(curr_index) + 1;
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$new_row.find('a.add_foreign_key_field').attr('data-index', new_index);
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// Update form parameter names.
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$new_row.find('select[name^="foreign_key_fields_name"]:not(:first), ' +
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'select[name^="destination_foreign_column"]:not(:first)'
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).each(function () {
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$(this).parent().remove();
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});
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$new_row.find('input, select').each(function () {
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$(this).attr('name',
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$(this).attr('name').replace(/\d/, new_index)
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);
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});
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// Finally add the row.
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$new_row.insertAfter($prev_row);
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});
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/**
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* Ajax Event handler for 'Drop Foreign key'
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*/
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$('a.drop_foreign_key_anchor.ajax').on('click', function (event) {
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event.preventDefault();
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var $anchor = $(this);
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// Object containing reference to the current field's row
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var $curr_row = $anchor.parents('tr');
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var drop_query = escapeHtml(
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$curr_row.children('td')
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.children('.drop_foreign_key_msg')
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.val()
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);
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var question = PMA_sprintf(PMA_messages.strDoYouReally, drop_query);
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$anchor.PMA_confirm(question, $anchor.attr('href'), function (url) {
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var $msg = PMA_ajaxShowMessage(PMA_messages.strDroppingForeignKey, false);
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$.post(url, {'is_js_confirmed': 1, 'ajax_request': true}, function (data) {
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if (data.success === true) {
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PMA_ajaxRemoveMessage($msg);
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PMA_commonActions.refreshMain(false, function () {
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// Do nothing
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});
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} else {
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PMA_ajaxShowMessage(PMA_messages.strErrorProcessingRequest + " : " + data.error, false);
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}
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}); // end $.post()
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}); // end $.PMA_confirm()
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}); //end Drop Foreign key
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});
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