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Viewing file:     indexes.js (7.23 KB)      -rw-rw-rw-

/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * @fileoverview    function used for index manipulation pages
 * @name            Table Structure
 *
 * @requires    jQuery
 * @requires    jQueryUI
 * @required    js/functions.js
 */

/**
 * Hides/shows the inputs and submits appropriately depending
 * on whether the index type chosen is 'SPATIAL' or not.
 */
function checkIndexType()
{
    /**
     * @var Object Dropdown to select the index type.
     */
    $select_index_type = $('#select_index_type');
    /**
     * @var Object Table header for the size column.
     */
    $size_header = $('#index_columns thead tr th:nth-child(2)');
    /**
     * @var Object Inputs to specify the columns for the index.
     */
    $column_inputs = $('select[name="index[columns][names][]"]');
    /**
     * @var Object Inputs to specify sizes for columns of the index.
     */
    $size_inputs = $('input[name="index[columns][sub_parts][]"]');
    /**
     * @var Object Footer containg the controllers to add more columns
     */
    $add_more = $('#index_frm .tblFooters');

    if ($select_index_type.val() == 'SPATIAL') {
        // Disable and hide the size column
        $size_header.hide();
        $size_inputs.each(function () {
            $(this)
                .prop('disabled', true)
                .parent('td').hide();
        });

        // Disable and hide the columns of the index other than the first one
        var initial = true;
        $column_inputs.each(function () {
            $column_input = $(this);
            if (! initial) {
                $column_input
                    .prop('disabled', true)
                    .parent('td').hide();
            } else {
                initial = false;
            }
        });

        // Hide controllers to add more columns
        $add_more.hide();
    } else {
        // Enable and show the size column
        $size_header.show();
        $size_inputs.each(function () {
            $(this)
                .prop('disabled', false)
                .parent('td').show();
        });

        // Enable and show the columns of the index
        $column_inputs.each(function () {
            $(this)
                .prop('disabled', false)
                .parent('td').show();
        });

        // Show controllers to add more columns
        $add_more.show();
    }
}

/**
 * Unbind all event handlers before tearing down a page
 */
AJAX.registerTeardown('indexes.js', function () {
    $('#select_index_type').die('change');
    $('a.drop_primary_key_index_anchor.ajax').die('click');
    $("#table_index tbody tr td.edit_index.ajax, #indexes .add_index.ajax").die('click');
    $('#index_frm input[type=submit]').die('click');
});

/**
 * @description <p>Ajax scripts for table index page</p>
 *
 * Actions ajaxified here:
 * <ul>
 * <li>Showing/hiding inputs depending on the index type chosen</li>
 * <li>create/edit/drop indexes</li>
 * </ul>
 */
AJAX.registerOnload('indexes.js', function () {
    checkIndexType();
    checkIndexName("index_frm");
    $('#select_index_type').live('change', function (event) {
        event.preventDefault();
        checkIndexType();
        checkIndexName("index_frm");
    });

    /**
     * Ajax Event handler for 'Drop Index'
     */
    $('a.drop_primary_key_index_anchor.ajax').live('click', function (event) {
        event.preventDefault();
        var $anchor = $(this);
        /**
         * @var $curr_row    Object containing reference to the current field's row
         */
        var $curr_row = $anchor.parents('tr');
        /** @var    Number of columns in the key */
        var rows = $anchor.parents('td').attr('rowspan') || 1;
        /** @var    Rows that should be hidden */
        var $rows_to_hide = $curr_row;
        for (var i = 1, $last_row = $curr_row.next(); i < rows; i++, $last_row = $last_row.next()) {
            $rows_to_hide = $rows_to_hide.add($last_row);
        }

        var question = escapeHtml(
            $curr_row.children('td')
                .children('.drop_primary_key_index_msg')
                .val()
        );

        $anchor.PMA_confirm(question, $anchor.attr('href'), function (url) {
            var $msg = PMA_ajaxShowMessage(PMA_messages.strDroppingPrimaryKeyIndex, false);
            $.get(url, {'is_js_confirmed': 1, 'ajax_request': true}, function (data) {
                if (data.success === true) {
                    PMA_ajaxRemoveMessage($msg);
                    var $table_ref = $rows_to_hide.closest('table');
                    if ($rows_to_hide.length == $table_ref.find('tbody > tr').length) {
                        // We are about to remove all rows from the table
                        $table_ref.hide('medium', function () {
                            $('div.no_indexes_defined').show('medium');
                            $rows_to_hide.remove();
                        });
                        $table_ref.siblings('div.notice').hide('medium');
                    } else {
                        // We are removing some of the rows only
                        toggleRowColors($rows_to_hide.last().next());
                        $rows_to_hide.hide("medium", function () {
                            $(this).remove();
                        });
                    }
                    if ($('#result_query').length) {
                        $('#result_query').remove();
                    }
                    if (data.sql_query) {
                        $('<div id="result_query"></div>')
                            .html(data.sql_query)
                            .prependTo('#page_content');
                        PMA_highlightSQL($('#page_content'));
                    }
                    PMA_commonActions.refreshMain(false, function () {
                        $("a.ajax[href^=#indexes]").click();
                    });
                    PMA_reloadNavigation();
                } else {
                    PMA_ajaxShowMessage(PMA_messages.strErrorProcessingRequest + " : " + data.error, false);
                }
            }); // end $.get()
        }); // end $.PMA_confirm()
    }); //end Drop Primary Key/Index

    /**
     *Ajax event handler for index edit
    **/
    $("#table_index tbody tr td.edit_index.ajax, #indexes .add_index.ajax").live('click', function (event) {
        event.preventDefault();
        var url, title;
        if ($(this).find("a").length === 0) {
            // Add index
            var valid = checkFormElementInRange(
                $(this).closest('form')[0],
                'added_fields',
                'Column count has to be larger than zero.'
            );
            if (! valid) {
                return;
            }
            url = $(this).closest('form').serialize();
            title = PMA_messages.strAddIndex;
        } else {
            // Edit index
            url = $(this).find("a").attr("href");
            if (url.substring(0, 16) == "tbl_indexes.php?") {
                url = url.substring(16, url.length);
            }
            title = PMA_messages.strEditIndex;
        }
        url += "&ajax_request=true";
        indexEditorDialog(url, title, function () {
            // refresh the page using ajax
            PMA_commonActions.refreshMain(false, function () {
                $("a.ajax[href^=#indexes]").click();
            });
        });
    });
});