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<%doc>
(within a form)
<table>
<tr>
<th>Field 1</th>
<th>Field 2</th>
</tr>
<tr id="mytemplate">
<td><input type="text" name="field1"></td>
<td><select name="field2">...</td>
...
</tr>
</table>
<& /elements/auto-table.html,
table => 'mytable',
template_row = 'mytemplate',
rows => [
{ field1 => 'foo', field2 => 'CA', ... },
{ field1 => 'bar', field2 => 'TX', ... }, ...
],
&>
or if you prefer:
...
fieldorder => [ 'field1', 'field2', ... ],
rows => [
[ 'foo', 'CA' ],
[ 'bar', 'TX' ],
],
In the process/ handler, something like:
my @rows;
my %vars = $cgi->Vars;
for my $k ( keys %vars ) {
$k =~ /^${pre}magic(\d+)$/ or next;
my $rownum = $1;
# find all submitted names ending in this rownum
my %thisrow =
map { $_ => $vars{$_} }
grep /^(.*[\d])$rownum$/, keys %vars;
$thisrow->{num} = delete $thisrow{"${pre}magic$rownum"};
push @rows, $thisrow;
}
</%doc>
<tbody id="<%$pre%>autotable"></tbody>
<script type="text/javascript">
var <%$pre%>template;
var <%$pre%>tbody;
var <%$pre%>next_rownum;
var <%$pre%>set_rownum;
var <%$pre%>addRow;
var <%$pre%>deleteRow;
var <%$pre%>fieldorder = <% encode_json($fieldorder) %>;
function <%$pre%>possiblyAddRow_factory(obj) {
var callback = obj.onchange;
return function() {
if ( obj.rownum == <%$pre%>tbody.lastChild.rownum ) {
// then this is the last row, and it's being changed, so spawn a new row
<%$pre%>addRow();
}
if ( callback ) {
callback.apply(obj);
}
}
}
function <%$pre%>set_rownum(obj, rownum) {
obj.rownum = rownum;
if ( obj.id ) {
obj.id = obj.id + rownum;
}
if ( obj.getAttribute('name') ) {
obj.setAttribute('name', obj.getAttribute('name') + rownum);
// also, in this case it's a form field that will be part of the record
// so set up an onchange handler
obj.onchange = <%$pre%>possiblyAddRow_factory(obj);
}
for (var i = 0; i < obj.children.length; i++) {
if ( obj.children[i] instanceof Node ) {
<%$pre%>set_rownum(obj.children[i], rownum);
}
}
}
function <%$pre%>addRow(data) {
// duplicate the node
// warning: cloneNode doesn't clone event handlers that were set through
// the DOM
// if 'data' is an object, prepopulate the row's fields with the object's
// elements
// returns the rownum of the new row
var row = <%$pre%>template.cloneNode(true);
<%$pre%>tbody.appendChild(row);
var this_rownum = <%$pre%>next_rownum;
<%$pre%>set_rownum(row, this_rownum);
if(data instanceof Array) {
for (i = 0; i < data.length && i < <%$pre%>fieldorder.length; i++) {
var el = document.getElementsByName(<%$pre |js_string%> +
<%$pre%>fieldorder[i] +
this_rownum)[0];
if (el) {
if ( el.tagName.toLowerCase() == 'span' ) {
el.innerHTML = data[i];
} else if ( el.type == 'checkbox' ) {
el.checked = (el.value == data[i]);
} else {
el.value = data[i];
}
}
}
} else if (data instanceof Object) {
for (var field in data) {
var el = document.getElementsByName(<%$pre |js_string%> +
field +
this_rownum)[0];
if (el) {
if ( el.tagName.toLowerCase() == 'span' ) {
el.innerHTML = data[field];
} else if ( el.type == 'checkbox' ) {
el.checked = (el.value == data[field]);
} else {
el.value = data[field];
}
}
}
} // else nothing
<%$pre%>next_rownum++;
return this_rownum;
}
function <%$pre%>deleteRow(rownum) {
if ( rownum == <%$pre%>tbody.lastChild.rownum ) {
// if this is the last row, spawn another one after it
<%$pre%>addRow();
}
var r = document.getElementById('<%$pre%>row' + rownum);
<%$pre%>tbody.removeChild(r);
}
function <%$pre%>set_prefix(obj) {
if ( obj.id ) {
obj.id = <%$pre |js_string%> + obj.id;
}
if ( obj.getAttribute('name') ) {
obj.setAttribute('name', <%$pre |js_string%> + obj.getAttribute('name'));
}
for (var i = 0; i < obj.children.length; i++) {
if ( obj.children[i] instanceof Node ) {
<%$pre%>set_prefix(obj.children[i]);
}
}
}
function <%$pre%>init() {
<%$pre%>template = document.getElementById(<% $template_row |js_string%>);
<%$pre%>tbody = document.getElementById('<%$pre%>autotable');
<%$pre%>next_rownum = <%$pre%>template.sectionRowIndex;
// detach the template row
var table = <%$pre%>template.parentNode;
table.removeChild(<%$pre%>template);
// give it an id
<%$pre%>template.id = 'row';
// prefix the ids and names of the TR object and all its descendants
<%$pre%>set_prefix(<%$pre%>template);
// add a magic identifier so we know it's been submitted
var magic = document.createElement('INPUT');
magic.setAttribute('type', 'hidden');
magic.setAttribute('name', '<%$pre%>magic');
magic.value = '1';
// and a delete button
%# should this be enclosed in an actual <button> for aesthetics?
var delete_button = document.createElement('IMG');
delete_button.id = '<%$pre%>delete_button';
delete_button.src = '<%$fsurl%>images/cross.png';
delete_button.alt = 'X';
// use an inline string for this so that it will be cloned properly
delete_button.setAttribute('onclick', "<%$pre%>deleteRow(this.rownum);");
// and an error display
var error_span = document.createElement('SPAN');
error_span.className = 'error';
error_span.style.color = '#FF0000';
error_span.setAttribute('name', '<%$pre%>error');
error_span.style.padding = '5px';
var delete_cell = document.createElement('TD');
delete_cell.style.textAlign = 'left';
delete_cell.appendChild(delete_button);
delete_cell.appendChild(magic); // it has to go somewhere
delete_cell.appendChild(error_span);
<%$pre%>template.appendChild(delete_cell);
// preload rows
var rows = <% encode_json(\@rows) %>;
for (var i = 0; i < rows.length; i++) {
<%$pre%>addRow(rows[i]);
}
<%$pre%>addRow();
}
<%$pre%>init();
</script>
<%init>
my %opt = @_;
my $pre = '';
$pre = $opt{'table'} . '_' if $opt{'table'};
my $template_row = $opt{'template_row'}
or die "auto-table requires template_row\n"; # a DOM id
# rows that we will preload, as hashrefs of name => value
my @rows = @{ $opt{'data'} || [] };
foreach (@rows) {
# allow an array of FS::Record objects to be passed
if ( blessed($_) and $_->isa('FS::Record') ) {
$_ = $_->hashref;
}
}
my $fieldorder = $opt{'fieldorder'} || [];
</%init>
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