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phpmyadmin_ynh/sources/js/db_structure.js
2014-01-14 12:28:06 +01:00

385 lines
15 KiB
JavaScript

/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* @fileoverview functions used on the database structure page
* @name Database Structure
*
* @requires jQuery
* @requires jQueryUI
* @required js/functions.js
*/
/**
* AJAX scripts for db_structure.php
*
* Actions ajaxified here:
* Drop Database
* Truncate Table
* Drop Table
*
*/
/**
* Unbind all event handlers before tearing down a page
*/
AJAX.registerTeardown('db_structure.js', function () {
$("span.fkc_switch").unbind('click');
$('#fkc_checkbox').unbind('change');
$("a.truncate_table_anchor.ajax").die('click');
$("a.drop_table_anchor.ajax").die('click');
$('a.drop_tracking_anchor.ajax').die('click');
$('#real_end_input').die('click');
});
/**
* Adjust number of rows and total size in the summary
* when truncating, creating, dropping or inserting into a table
*/
function PMA_adjustTotals() {
var byteUnits = new Array(
PMA_messages.strB,
PMA_messages.strKiB,
PMA_messages.strMiB,
PMA_messages.strGiB,
PMA_messages.strTiB,
PMA_messages.strPiB,
PMA_messages.strEiB
);
/**
* @var $allTr jQuery object that references all the rows in the list of tables
*/
var $allTr = $("#tablesForm table.data tbody:first tr");
// New summary values for the table
var tableSum = $allTr.size();
var rowsSum = 0;
var sizeSum = 0;
var overheadSum = 0;
var rowSumApproximated = false;
$allTr.each(function () {
var $this = $(this);
var i, 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 ~ and a following 2 (Eg 100 --> ~1002)
strRows = strRows.substring(1, strRows.length - 1);
}
strRows = strRows.replace(/[,.]/g, '');
var intRow = parseInt(strRows, 10);
if (! isNaN(intRow)) {
rowsSum += intRow;
}
// Extract the size and overhead
var valSize = 0;
var valOverhead = 0;
var strSize = $.trim($this.find('.tbl_size span:not(.unit)').text());
var strSizeUnit = $.trim($this.find('.tbl_size span.unit').text());
var strOverhead = $.trim($this.find('.tbl_overhead span:not(.unit)').text());
var strOverheadUnit = $.trim($this.find('.tbl_overhead span.unit').text());
// 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 readablility:
// 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 size_magnitude = 0, overhead_magnitude = 0;
while (sizeSum >= 1024) {
sizeSum /= 1024;
size_magnitude++;
}
while (overheadSum >= 1024) {
overheadSum /= 1024;
overhead_magnitude++;
}
sizeSum = Math.round(sizeSum * 10) / 10;
overheadSum = Math.round(overheadSum * 10) / 10;
// Update summary with new data
var $summary = $("#tbl_summary_row");
$summary.find('.tbl_num').text($.sprintf(PMA_messages.strTables, tableSum));
$summary.find('.tbl_rows').text(strRowSum);
$summary.find('.tbl_size').text(sizeSum + " " + byteUnits[size_magnitude]);
$summary.find('.tbl_overhead').text(overheadSum + " " + byteUnits[overhead_magnitude]);
}
AJAX.registerOnload('db_structure.js', function () {
/**
* Handler for the print view multisubmit.
* All other multi submits can be handled via ajax, but this one needs
* special treatment as the results need to open in another browser window
*/
$('#tablesForm').submit(function (event) {
var $form = $(this);
if ($form.find('select[name=submit_mult]').val() === 'print') {
event.preventDefault();
event.stopPropagation();
$('form#clone').remove();
var $clone = $form
.clone()
.hide()
.appendTo('body');
$clone
.find('select[name=submit_mult]')
.val('print');
$clone
.attr('target', 'printview')
.attr('id', 'clone')
.submit();
}
});
/**
* Event handler for 'Foreign Key Checks' disabling option
* in the drop table confirmation form
*/
$("span.fkc_switch").click(function (event) {
if ($("#fkc_checkbox").prop('checked')) {
$("#fkc_checkbox").prop('checked', false);
$("#fkc_status").html(PMA_messages.strForeignKeyCheckDisabled);
return;
}
$("#fkc_checkbox").prop('checked', true);
$("#fkc_status").html(PMA_messages.strForeignKeyCheckEnabled);
});
$('#fkc_checkbox').change(function () {
if ($(this).prop("checked")) {
$("#fkc_status").html(PMA_messages.strForeignKeyCheckEnabled);
return;
}
$("#fkc_status").html(PMA_messages.strForeignKeyCheckDisabled);
}); // End of event handler for 'Foreign Key Check'
/**
* Ajax Event handler for 'Truncate Table'
*/
$("a.truncate_table_anchor.ajax").live('click', function (event) {
event.preventDefault();
/**
* @var $this_anchor Object referring to the anchor clicked
*/
var $this_anchor = $(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 curr_table_name = $this_anchor.parents('tr').children('th').children('a').text();
/**
* @var question String containing the question to be asked for confirmation
*/
var question = PMA_messages.strTruncateTableStrongWarning + ' ' +
$.sprintf(PMA_messages.strDoYouReally, 'TRUNCATE ' + escapeHtml(curr_table_name));
$this_anchor.PMA_confirm(question, $this_anchor.attr('href'), function (url) {
PMA_ajaxShowMessage(PMA_messages.strProcessingRequest);
$.get(url, {'is_js_confirmed' : 1, 'ajax_request' : true}, function (data) {
if (data.success === true) {
PMA_ajaxShowMessage(data.message);
// Adjust table statistics
var $tr = $this_anchor.closest('tr');
$tr.find('.tbl_rows').text('0');
$tr.find('.tbl_size, .tbl_overhead').text('-');
//Fetch inner span of this anchor
//and replace the icon with its disabled version
var span = $this_anchor.html().replace(/b_empty/, 'bd_empty');
//To disable further attempts to truncate the table,
//replace the a element with its inner span (modified)
$this_anchor
.replaceWith(span)
.removeClass('truncate_table_anchor');
PMA_adjustTotals();
} else {
PMA_ajaxShowMessage(PMA_messages.strErrorProcessingRequest + " : " + data.error, false);
}
}); // end $.get()
}); //end $.PMA_confirm()
}); //end of Truncate Table Ajax action
/**
* Ajax Event handler for 'Drop Table' or 'Drop View'
*/
$("a.drop_table_anchor.ajax").live('click', function (event) {
event.preventDefault();
var $this_anchor = $(this);
//extract current table name and build the question string
/**
* @var $curr_row Object containing reference to the current row
*/
var $curr_row = $this_anchor.parents('tr');
/**
* @var curr_table_name String containing the name of the table to be truncated
*/
var curr_table_name = $curr_row.children('th').children('a').text();
/**
* @var is_view Boolean telling if we have a view
*/
var is_view = $curr_row.hasClass('is_view') || $this_anchor.hasClass('view');
/**
* @var question String containing the question to be asked for confirmation
*/
var question;
if (! is_view) {
question = PMA_messages.strDropTableStrongWarning + ' ' +
$.sprintf(PMA_messages.strDoYouReally, 'DROP TABLE ' + escapeHtml(curr_table_name));
} else {
question =
$.sprintf(PMA_messages.strDoYouReally, 'DROP VIEW ' + escapeHtml(curr_table_name));
}
$this_anchor.PMA_confirm(question, $this_anchor.attr('href'), function (url) {
var $msg = PMA_ajaxShowMessage(PMA_messages.strProcessingRequest);
$.get(url, {'is_js_confirmed' : 1, 'ajax_request' : true}, function (data) {
if (data.success === true) {
PMA_ajaxShowMessage(data.message);
toggleRowColors($curr_row.next());
$curr_row.hide("medium").remove();
PMA_adjustTotals();
PMA_reloadNavigation();
PMA_ajaxRemoveMessage($msg);
} else {
PMA_ajaxShowMessage(PMA_messages.strErrorProcessingRequest + " : " + data.error, false);
}
}); // end $.get()
}); // end $.PMA_confirm()
}); //end of Drop Table Ajax action
/**
* Ajax Event handler for 'Drop tracking'
*/
$('a.drop_tracking_anchor.ajax').live('click', function (event) {
event.preventDefault();
var $anchor = $(this);
/**
* @var curr_tracking_row Object containing reference to the current tracked table's row
*/
var $curr_tracking_row = $anchor.parents('tr');
/**
* @var question String containing the question to be asked for confirmation
*/
var question = PMA_messages.strDeleteTrackingData;
$anchor.PMA_confirm(question, $anchor.attr('href'), function (url) {
PMA_ajaxShowMessage(PMA_messages.strDeletingTrackingData);
$.get(url, {'is_js_confirmed': 1, 'ajax_request': true}, function (data) {
if (data.success === true) {
var $tracked_table = $curr_tracking_row.parents('table');
var table_name = $curr_tracking_row.find('td:nth-child(2)').text();
// Check how many rows will be left after we remove
if ($tracked_table.find('tbody tr').length === 1) {
// We are removing the only row it has
$('#tracked_tables').hide("slow").remove();
} else {
// There are more rows left after the deletion
toggleRowColors($curr_tracking_row.next());
$curr_tracking_row.hide("slow", function () {
$(this).remove();
});
}
// Make the removed table visible in the list of 'Untracked tables'.
var $untracked_table = $('table#noversions');
// This won't work if no untracked tables are there.
if ($untracked_table.length > 0) {
var $rows = $untracked_table.find('tbody tr');
$rows.each(function (index) {
var $row = $(this);
var tmp_tbl_name = $row.find('td:first-child').text();
var is_last_iteration = (index == ($rows.length - 1));
if (tmp_tbl_name > table_name || is_last_iteration) {
var $cloned = $row.clone();
// Change the table name of the cloned row.
$cloned.find('td:first-child').text(table_name);
// Change the link of the cloned row.
var new_url = $cloned
.find('td:nth-child(2) a')
.attr('href')
.replace('table=' + tmp_tbl_name, 'table=' + encodeURIComponent(table_name));
$cloned.find('td:nth-child(2) a').attr('href', new_url);
// Insert the cloned row in an appropriate location.
if (tmp_tbl_name > table_name) {
$cloned.insertBefore($row);
toggleRowColors($row);
return false;
} else {
$cloned.insertAfter($row);
toggleRowColors($cloned);
}
}
});
}
PMA_ajaxShowMessage(data.message);
} else {
PMA_ajaxShowMessage(PMA_messages.strErrorProcessingRequest + " : " + data.error, false);
}
}); // end $.get()
}); // end $.PMA_confirm()
}); //end Drop Tracking
//Calculate Real End for InnoDB
/**
* Ajax Event handler for calculatig the real end for a InnoDB table
*
*/
$('#real_end_input').live('click', function (event) {
event.preventDefault();
/**
* @var question String containing the question to be asked for confirmation
*/
var question = PMA_messages.strOperationTakesLongTime;
$(this).PMA_confirm(question, '', function () {
return true;
});
return false;
}); //end Calculate Real End for InnoDB
}); // end $()