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www/docs.md
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@ -112,6 +112,8 @@ For added security, you can load the script using [Subresource Integrity (SRI)](
<script src="https://unpkg.com/htmx.org@1.7.0" integrity="TODO: REGEN" crossorigin="anonymous"></script> <script src="https://unpkg.com/htmx.org@1.7.0" integrity="TODO: REGEN" crossorigin="anonymous"></script>
``` ```
If you are migrating to htmx from intercooler.js, please see the [migration guide here](/migration-guide).
## <a name="ajax"></a> [AJAX](#ajax) ## <a name="ajax"></a> [AJAX](#ajax)
The core of htmx is a set of attributes that allow you to issue AJAX requests directly from HTML: The core of htmx is a set of attributes that allow you to issue AJAX requests directly from HTML:

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@ -20,6 +20,7 @@ You can copy and paste them and then adjust them for your needs.
| [Bulk Update](/examples/bulk-update) | Demonstrates bulk updating of multiple rows of data | [Bulk Update](/examples/bulk-update) | Demonstrates bulk updating of multiple rows of data
| [Click To Load](/examples/click-to-load) | Demonstrates clicking to load more rows in a table | [Click To Load](/examples/click-to-load) | Demonstrates clicking to load more rows in a table
| [Delete Row](/examples/delete-row) | Demonstrates row deletion in a table | [Delete Row](/examples/delete-row) | Demonstrates row deletion in a table
| [Edit Row](/examples/edit-row) | Demonstrates how to edit rows in a table
| [Lazy Loading](/examples/lazy-load) | Demonstrates how to lazy load content | [Lazy Loading](/examples/lazy-load) | Demonstrates how to lazy load content
| [Inline Validation](/examples/inline-validation) | Demonstrates how to do inline field validation | [Inline Validation](/examples/inline-validation) | Demonstrates how to do inline field validation
| [Infinite Scroll](/examples/infinite-scroll) | Demonstrates infinite scrolling of a page | [Infinite Scroll](/examples/infinite-scroll) | Demonstrates infinite scrolling of a page

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---
layout: demo_layout.njk
---
## Edit Row
This example shows how to implement editable rows. First let's look at the table body:
```html
<table class="table delete-row-example">
<thead>
<tr>
<th>Name</th>
<th>Email</th>
<th></th>
</tr>
</thead>
<tbody hx-target="closest tr" hx-swap="outerHTML">
...
</tbody>
</table>
```
This will tell the requests from within the table to target the closest enclosing row that the request is triggered
on and to replace the entire row.
Here is the HTML for a row:
```html
<tr>
<td>${contact.name}</td>
<td>${contact.email}</td>
<td>
<button class="btn btn-danger"
hx-get="/contact/${contact.id}/edit"
hx-trigger="edit"
_="on click
if .editing is not empty
Swal.fire({title: 'Already Editing',
showCancelButton: true,
confirmButtonText: 'Yep, Edit This Row!',
text:'Hey! You are already editing a row! Do you want to cancel that edit and continue?'})
if the result's isConfirmed is false
halt
end
send cancel to .editing
end
trigger edit">
Edit
</button>
</td>
</tr>
```
Here we are getting a bit fancy and only allowing one row at a time to be edited, using [hyperscript](http://hyperscript.org).
We check to see if there is a row with the `.editing` class on it and confirm that the user wants to edit this row
and dismiss the other one. If so, we send a cancel event to the other row so it will issue a request to go back to
its initial state.
We then trigger the `edit` event on the current element, which triggers the htmx request to get the editable version
of the row.
Note that if you didn't care if a user was editing multiple rows, you could omit the hyperscript and custom `hx-trigger`,
and just let the normal click handling work with htmx. You could also implement mutual exclusivity by simply targeting the
entire table when the Edit button was clicked. Here we wanted to show how to integrate htmx and hyperscript to solve
the problem and narrow down the server interactions a bit, plus we get to use a nice SweetAlert confirm dialog.
Finally, here is what the row looks like when the data is being edited:
```html
<tr hx-trigger='cancel' class='editing' hx-get="/contact/${contact.id}">
<td><input name='name' value='${contact.name}'</td>
<td><input name='email' value='${contact.email}'</td>
<td>
<button class="btn btn-danger" hx-get="/contact/${contact.id}">
Cancel
</button>
<button class="btn btn-danger" hx-put="/contact/${contact.id}" hx-include="closest tr">
Save
</button>
</td>
</tr>
```
Here we have a few things going on: First off the row itself can respond to the `cancel` event, which will bring
back the read-only version of the row. This is used by the hyperscript above. There is a cancel button that allows
cancelling the current edit. Finally, there is a save button that issues a `PUT` to update the contact. Note that
there is an [`hx-include`](attributes/hx-include) that includes all the inputs in the closest row. Tables rows are
notoriously difficult to use with forms due to HTML constraints (you can't put a `form` directly inside a `tr`) so
this makes things a bit nicer to deal with.
{% include demo_ui.html.liquid %}
<script src="//cdn.jsdelivr.net/npm/sweetalert2@11"></script>
<script>
//=========================================================================
// Fake Server Side Code
//=========================================================================
// data
var contacts = [
{
name: "Joe Smith",
email: "joe@smith.org",
status: "Active",
id: 0
},
{
name: "Angie MacDowell",
email: "angie@macdowell.org",
status: "Active",
id: 1
},
{
name: "Fuqua Tarkenton",
email: "fuqua@tarkenton.org",
status: "Active",
id: 2
},
{
name: "Kim Yee",
email: "kim@yee.org",
status: "Inactive",
id: 3
},
];
// routes
init("/demo", function(request, params){
return tableTemplate(contacts);
});
onGet(/\/contact\/\d+/, function(request, params){
var id = parseInt(request.url.split("/")[2]); // get the contact
var contact = contacts[id];
console.log(request, id, contact)
if(request.url.endsWith("/edit")) {
return editTemplate(contacts[id])
} else {
return rowTemplate(contacts[id])
}
});
onPut(/\/contact\/\d+/, function(request, params){
var id = parseInt("/contact/0/edit".split("/")[2]); // get the contact
contact = contacts[id]
contact.name = params['name'];
contact.email = params['email'];
return rowTemplate(contact);
});
// templates
function rowTemplate(contact) {
return `<tr>
<td>${contact.name}</td>
<td>${contact.email}</td>
<td>
<button class="btn btn-danger"
hx-get="/contact/${contact.id}/edit"
hx-trigger="edit"
_="on click
if .editing is not empty
Swal.fire({title: 'Already Editing',
showCancelButton: true,
confirmButtonText: 'Yep, Edit This Row!',
text:'Hey! You are already editing a row! Do you want to cancel that edit and continue?'})
if the result's isConfirmed is false
halt
end
send cancel to .editing
end
trigger edit">
Edit
</button>
</td>
</tr>`;
}
function editTemplate(contact) {
return `<tr hx-trigger='cancel' class='editing' hx-get="/contact/${contact.id}">
<td><input name='name' value='${contact.name}'</td>
<td><input name='email' value='${contact.email}'</td>
<td>
<button class="btn btn-danger" hx-get="/contact/${contact.id}">
Cancel
</button>
<button class="btn btn-danger" hx-put="/contact/${contact.id}" hx-include="closest tr">
Save
</button>
</td>
</tr>`;
}
function tableTemplate(contacts) {
var rows = "";
for (var i = 0; i < contacts.length; i++) {
rows += rowTemplate(contacts[i], i, "");
}
return `
<table class="table delete-row-example">
<thead>
<tr>
<th>Name</th>
<th>Email</th>
<th></th>
</tr>
</thead>
<tbody hx-target="closest tr" hx-swap="outerHTML">
${rows}
</tbody>
</table>`;
}
</script>

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