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✏️ Editing: structure.js

/**
 * @fileoverview    functions used on the database structure page
 * @name            Database Structure
 *
 * @requires    jQuery
 * @requires    jQueryUI
 * @required    js/functions.js
 */

var DatabaseStructure = {};

/**
 * AJAX scripts for /database/structure
 *
 * Actions ajaxified here:
 * Drop Database
 * Truncate Table
 * Drop Table
 *
 */

/**
 * Unbind all event handlers before tearing down a page
 */
AJAX.registerTeardown('database/structure.js', function () {
    $(document).off('click', 'a.truncate_table_anchor.ajax');
    $(document).off('click', 'a.drop_table_anchor.ajax');
    $(document).off('click', '#real_end_input');
    $(document).off('click', 'a.favorite_table_anchor.ajax');
    $('a.real_row_count').off('click');
    $('a.row_count_sum').off('click');
    $('select[name=submit_mult]').off('change');
});

/**
 * Adjust number of rows and total size in the summary
 * when truncating, creating, dropping or inserting into a table
 */
DatabaseStructure.adjustTotals = function () {
    var byteUnits = [
        Messages.strB,
        Messages.strKiB,
        Messages.strMiB,
        Messages.strGiB,
        Messages.strTiB,
        Messages.strPiB,
        Messages.strEiB
    ];
    /**
     * @var $allTr jQuery object that references all the rows in the list of tables
     */
    var $allTr = $('#tablesForm').find('table.data tbody').first().find('tr');
    // New summary values for the table
    var tableSum = $allTr.length;
    var rowsSum = 0;
    var sizeSum = 0;
    var overheadSum = 0;
    var rowSumApproximated = false;

$allTr.each(function () {
        var $this = $(this);
        var i;
        var tmpVal;
        // Get the number of rows for this SQL table
        var strRows = $this.find('.tbl_rows').text();
        // If the value is approximated
        if (strRows.indexOf('~') === 0) {
            rowSumApproximated = true;
            // The approximated value contains a preceding ~ (Eg 100 --> ~100)
            strRows = strRows.substring(1, strRows.length);
        }
        strRows = strRows.replace(/[,.\s]/g, '');
        var intRow = parseInt(strRows, 10);
        if (! isNaN(intRow)) {
            rowsSum += intRow;
        }
        // Extract the size and overhead
        var valSize         = 0;
        var valOverhead     = 0;
        var strSize         = $this.find('.tbl_size span:not(.unit)').text().trim();
        var strSizeUnit     = $this.find('.tbl_size span.unit').text().trim();
        var strOverhead     = $this.find('.tbl_overhead span:not(.unit)').text().trim();
        var strOverheadUnit = $this.find('.tbl_overhead span.unit').text().trim();
        // Given a value and a unit, such as 100 and KiB, for the table size
        // and overhead calculate their numeric values in bytes, such as 102400
        for (i = 0; i < byteUnits.length; i++) {
            if (strSizeUnit === byteUnits[i]) {
                tmpVal = parseFloat(strSize);
                valSize = tmpVal * Math.pow(1024, i);
                break;
            }
        }
        for (i = 0; i < byteUnits.length; i++) {
            if (strOverheadUnit === byteUnits[i]) {
                tmpVal = parseFloat(strOverhead);
                valOverhead = tmpVal * Math.pow(1024, i);
                break;
            }
        }
        sizeSum += valSize;
        overheadSum += valOverhead;
    });
    // Add some commas for readability:
    // 1000000 becomes 1,000,000
    var strRowSum = rowsSum + '';
    var regex = /(\d+)(\d{3})/;
    while (regex.test(strRowSum)) {
        strRowSum = strRowSum.replace(regex, '$1' + ',' + '$2');
    }
    // If approximated total value add ~ in front
    if (rowSumApproximated) {
        strRowSum = '~' + strRowSum;
    }
    // Calculate the magnitude for the size and overhead values
    var sizeMagnitude = 0;
    var overheadMagnitude = 0;
    while (sizeSum >= 1024) {
        sizeSum /= 1024;
        sizeMagnitude++;
    }
    while (overheadSum >= 1024) {
        overheadSum /= 1024;
        overheadMagnitude++;
    }

sizeSum = Math.round(sizeSum * 10) / 10;
    overheadSum = Math.round(overheadSum * 10) / 10;

// Update summary with new data
    var $summary = $('#tbl_summary_row');
    $summary.find('.tbl_num').text(Functions.sprintf(Messages.strNTables, tableSum));
    if (rowSumApproximated) {
        $summary.find('.row_count_sum').text(strRowSum);
    } else {
        $summary.find('.tbl_rows').text(strRowSum);
    }
    $summary.find('.tbl_size').text(sizeSum + ' ' + byteUnits[sizeMagnitude]);
    $summary.find('.tbl_overhead').text(overheadSum + ' ' + byteUnits[overheadMagnitude]);
};

/**
 * Gets the real row count for a table or DB.
 * @param {object} $target Target for appending the real count value.
 */
DatabaseStructure.fetchRealRowCount = function ($target) {
    var $throbber = $('#pma_navigation').find('.throbber')
        .first()
        .clone()
        .css({ visibility: 'visible', display: 'inline-block' })
        .on('click', false);
    $target.html($throbber);
    $.ajax({
        type: 'GET',
        url: $target.attr('href'),
        cache: false,
        dataType: 'json',
        success: function (response) {
            if (response.success) {
                // If to update all row counts for a DB.
                if (response.real_row_count_all) {
                    $.each(JSON.parse(response.real_row_count_all),
                        function (index, table) {
                            // Update each table row count.
                            $('table.data td[data-table*="' + table.table + '"]')
                                .text(table.row_count);
                        }
                    );
                }
                // If to update a particular table's row count.
                if (response.real_row_count) {
                    // Append the parent cell with real row count.
                    $target.parent().text(response.real_row_count);
                }
                // Adjust the 'Sum' displayed at the bottom.
                DatabaseStructure.adjustTotals();
            } else {
                Functions.ajaxShowMessage(Messages.strErrorRealRowCount);
            }
        },
        error: function () {
            Functions.ajaxShowMessage(Messages.strErrorRealRowCount);
        }
    });
};

AJAX.registerOnload('database/structure.js', function () {
    /**
     * Event handler on select of "Make consistent with central list"
     */
    $('select[name=submit_mult]').on('change', function (event) {
        var url = 'index.php?route=/database/structure';
        var action = $(this).val();

if (action === 'make_consistent_with_central_list') {
            event.preventDefault();
            event.stopPropagation();

$('#makeConsistentWithCentralListModal').modal('show').on('shown.bs.modal', function () {
                $('#makeConsistentWithCentralListContinue').on('click', function () {
                    const $form = $('#tablesForm');
                    const argSep = CommonParams.get('arg_separator');
                    const data = $form.serialize() + argSep + 'ajax_request=true' + argSep + 'ajax_page_request=true';

Functions.ajaxShowMessage();
                    AJAX.source = $form;

$.post(
                        'index.php?route=/database/structure/central-columns/make-consistent',
                        data,
                        AJAX.responseHandler
                    );

$('#makeConsistentWithCentralListModal').modal('hide');
                });
            });

return;
        }

if (action === 'copy_tbl' ||
            action === 'add_prefix_tbl' ||
            action === 'replace_prefix_tbl' ||
            action === 'copy_tbl_change_prefix'
        ) {
            event.preventDefault();
            event.stopPropagation();
            if ($('input[name="selected_tbl[]"]:checked').length === 0) {
                return false;
            }
            var formData = $('#tablesForm').serialize();
            var modalTitle = '';
            if (action === 'copy_tbl') {
                url = 'index.php?route=/database/structure/copy-form';
                modalTitle = Messages.strCopyTablesTo;
            } else if (action === 'add_prefix_tbl') {
                url = 'index.php?route=/database/structure/add-prefix';
                modalTitle = Messages.strAddPrefix;
            } else if (action === 'replace_prefix_tbl') {
                url = 'index.php?route=/database/structure/change-prefix-form';
                modalTitle = Messages.strReplacePrefix;
            } else if (action === 'copy_tbl_change_prefix') {
                url = 'index.php?route=/database/structure/change-prefix-form';
                modalTitle = Messages.strCopyPrefix;
            }
            $.ajax({
                type: 'POST',
                url: url,
                dataType: 'html',
                data: formData
            }).done(function (modalBody) {
                const bulkActionModal = $('#bulkActionModal');
                bulkActionModal.on('show.bs.modal', function () {
                    this.querySelector('.modal-title').innerText = modalTitle;
                    this.querySelector('.modal-body').innerHTML = modalBody;
                });
                bulkActionModal.modal('show').on('shown.bs.modal', function () {
                    $('#bulkActionContinue').on('click', function () {
                        $('#ajax_form').trigger('submit');
                        $('#bulkActionModal').modal('hide');
                    });
                });
            });

return;
        }

if (action === 'analyze_tbl') {
            url = 'index.php?route=/table/maintenance/analyze';
        } else if (action === 'sync_unique_columns_central_list') {
            url = 'index.php?route=/database/structure/central-columns/add';
        } else if (action === 'delete_unique_columns_central_list') {
            url = 'index.php?route=/database/structure/central-columns/remove';
        } else if (action === 'check_tbl') {
            url = 'index.php?route=/table/maintenance/check';
        } else if (action === 'checksum_tbl') {
            url = 'index.php?route=/table/maintenance/checksum';
        } else if (action === 'drop_tbl') {
            url = 'index.php?route=/database/structure/drop-form';
        } else if (action === 'empty_tbl') {
            url = 'index.php?route=/database/structure/empty-form';
        } else if (action === 'export') {
            url = 'index.php?route=/export/tables';
        } else if (action === 'optimize_tbl') {
            url = 'index.php?route=/table/maintenance/optimize';
        } else if (action === 'repair_tbl') {
            url = 'index.php?route=/table/maintenance/repair';
        } else if (action === 'show_create') {
            url = 'index.php?route=/database/structure/show-create';
        } else {
            $('#tablesForm').trigger('submit');

return;
        }

var $form = $(this).parents('form');
        var argsep = CommonParams.get('arg_separator');
        var data = $form.serialize() + argsep + 'ajax_request=true' + argsep + 'ajax_page_request=true';

Functions.ajaxShowMessage();
        AJAX.source = $form;

$.post(url, data, AJAX.responseHandler);
    });

/**
     * Ajax Event handler for 'Truncate Table'
     */
    $(document).on('click', 'a.truncate_table_anchor.ajax', function (event) {
        event.preventDefault();

/**
         * @var $this_anchor Object  referring to the anchor clicked
         */
        var $thisAnchor = $(this);

// extract current table name and build the question string
        /**
         * @var curr_table_name String containing the name of the table to be truncated
         */
        var currTableName = $thisAnchor.parents('tr').children('th').children('a').text();
        /**
         * @var question    String containing the question to be asked for confirmation
         */
        var question = Messages.strTruncateTableStrongWarning + ' ' +
            Functions.sprintf(Messages.strDoYouReally, 'TRUNCATE `' + Functions.escapeHtml(currTableName) + '`') +
            Functions.getForeignKeyCheckboxLoader();

$thisAnchor.confirm(question, $thisAnchor.attr('href'), function (url) {
            Functions.ajaxShowMessage(Messages.strProcessingRequest);

var params = Functions.getJsConfirmCommonParam(this, $thisAnchor.getPostData());

$.post(url, params, function (data) {
                if (typeof data !== 'undefined' && data.success === true) {
                    Functions.ajaxShowMessage(data.message);
                    // Adjust table statistics
                    var $tr = $thisAnchor.closest('tr');
                    $tr.find('.tbl_rows').text('0');
                    $tr.find('.tbl_size, .tbl_overhead').text('-');
                    DatabaseStructure.adjustTotals();
                } else {
                    Functions.ajaxShowMessage(Messages.strErrorProcessingRequest + ' : ' + data.error, false);
                }
            }); // end $.post()
        }, Functions.loadForeignKeyCheckbox);
    }); // end of Truncate Table Ajax action

/**
     * Ajax Event handler for 'Drop Table' or 'Drop View'
     */
    $(document).on('click', 'a.drop_table_anchor.ajax', function (event) {
        event.preventDefault();

var $thisAnchor = $(this);

// extract current table name and build the question string
        /**
         * @var $curr_row    Object containing reference to the current row
         */
        var $currRow = $thisAnchor.parents('tr');
        /**
         * @var curr_table_name String containing the name of the table to be truncated
         */
        var currTableName = $currRow.children('th').children('a').text();
        /**
         * @var is_view Boolean telling if we have a view
         */
        var isView = $currRow.hasClass('is_view') || $thisAnchor.hasClass('view');
        /**
         * @var question    String containing the question to be asked for confirmation
         */
        var question;
        if (! isView) {
            question = Messages.strDropTableStrongWarning + ' ' +
                Functions.sprintf(Messages.strDoYouReally, 'DROP TABLE `' + Functions.escapeHtml(currTableName) + '`');
        } else {
            question =
                Functions.sprintf(Messages.strDoYouReally, 'DROP VIEW `' + Functions.escapeHtml(currTableName) + '`');
        }
        question += Functions.getForeignKeyCheckboxLoader();

$thisAnchor.confirm(question, $thisAnchor.attr('href'), function (url) {
            var $msg = Functions.ajaxShowMessage(Messages.strProcessingRequest);

var params = Functions.getJsConfirmCommonParam(this, $thisAnchor.getPostData());

$.post(url, params, function (data) {
                if (typeof data !== 'undefined' && data.success === true) {
                    Functions.ajaxShowMessage(data.message);
                    $currRow.hide('medium').remove();
                    DatabaseStructure.adjustTotals();
                    Navigation.reload();
                    Functions.ajaxRemoveMessage($msg);
                } else {
                    Functions.ajaxShowMessage(Messages.strErrorProcessingRequest + ' : ' + data.error, false);
                }
            }); // end $.post()
        }, Functions.loadForeignKeyCheckbox);
    }); // end of Drop Table Ajax action

// Calculate Real End for InnoDB
    /**
     * Ajax Event handler for calculating the real end for a InnoDB table
     *
     */
    $(document).on('click', '#real_end_input', function (event) {
        event.preventDefault();

/**
         * @var question    String containing the question to be asked for confirmation
         */
        var question = Messages.strOperationTakesLongTime;

$(this).confirm(question, '', function () {
            return true;
        });
        return false;
    }); // end Calculate Real End for InnoDB

// Add tooltip to favorite icons.
    $('.favorite_table_anchor').each(function () {
        Functions.tooltip(
            $(this),
            'a',
            $(this).attr('title')
        );
    });

// Get real row count via Ajax.
    $('a.real_row_count').on('click', function (event) {
        event.preventDefault();
        DatabaseStructure.fetchRealRowCount($(this));
    });
    // Get all real row count.
    $('a.row_count_sum').on('click', function (event) {
        event.preventDefault();
        DatabaseStructure.fetchRealRowCount($(this));
    });
});

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