fertjp.blogg.se - Jquery insert p element for each db item

#JQUERY INSERT P ELEMENT FOR EACH DB ITEM UPDATE#
#JQUERY INSERT P ELEMENT FOR EACH DB ITEM CODE#

The only thing you need to supply to the post function is the data to be handled by ajaxProcessing.php. Make sure that the get request sends the cookie data to the server as a name=value pair: As stated earlier, the get method relies on name=value pairs to do its work properly.The information in the cookie is the user's name: The first critical step in making sure that you get the right information from the database is to assign the value of the cookie set during login to a variable that can be used by jQuery.Open the function by making sure that the document (the current Web page DOM information) is completely loaded:.Just before that tag, the jQuery AJAX get method will be set up to retrieve the user's pictures.

#JQUERY INSERT P ELEMENT FOR EACH DB ITEM CODE#

Rather than storing the jQuery code in a different file and including it, let's use a slightly different technique that is very valuable when small jQuery scripts are used.

Open chap4/4-2.php to set up a get function to retrieve the current user's pictures into the Web browser.

jQuery provides a shorthand method call for making this kind of request to the server, and conveniently, it is called get. You can use GET as a form method or in AJAX. Most Web developers follow the rule of using GET when only retrieving data and using POST when sending data to the server that will invoke a change on the server. Most forms utilize the POST method to request data from the server, but URLs are limited to the GET method. Each item is set up in a name=value pair, which can be easily parsed by scripting languages like jQuery and PHP. Unless Web-site developers are using methods to hide the strings, you may have seen something similar to this:Įverything past the question mark is a query string that can be used in a GET request to the server. If you have been developing Web sites even for the shortest period of time, you are likely aware of query strings in the URL. Getting Content Based on the Current User

#JQUERY INSERT P ELEMENT FOR EACH DB ITEM UPDATE#

Let's look at some techniques for using jQuery's AJAX methods to update content. Some content updates may be based on the user information for the current user, other updates may be based on requests performed by any user, such as information based on a search performed by the Web-site visitor. In many cases, you'll want to use various jQuery AJAX functions to update visible Web-site content. add() to add the new item to the Array.Learn More Buy Using AJAX to Update Content So if you were to create them separately, you would need to use. This will give you a jQuery object with an Array of 2 items. var $obj = $("div element span element") So when you create a jQuery object by passing 2 or more sibling elements, it splits them apart, and makes them separate items in the Array. To deal with siblings, jQuery has them stored as additional items in its Array. after(), you're trying to add a sibling to each single element in the array. A DOM element can be a single element with nested descendants, but not two siblings. To explain why, this is because a jQuery object is an Array of DOM elements. append() or store the result in a variable to append.ĮDIT: (As noted in another answer, you can now use after() like add(), in that it returns a new set and doesn't modify the original.) Because it doesn't modify the original object, you need to either call it in the. It returns a new jQuery object with both elements as siblings.

This will append it as a sibling like you want. $('div#container').append( elementToAdd.add(p) )

$('div#container').append( elementToAdd ) var elementToAdd = $('').html('header') ĮlementToAdd.push( p ) // gets the DOM element at index 0 push() a DOM element (not a jQuery object) into the set. Didn't really make out much after that.ĮDIT: To modify the original set, you can. The selector here is what ends up being whatever you pass to. (inside pushStack method) ret.selector = lector + "." + name + "(" + selector + ")" I'll try to post some code of what I mean in a minute or two here.

after on an element that has no parentNode, is being used as a selector string which I think is failing when you are passing a jQuery object. So, I took a deep breath and opened jquery-1.4.2.js (in vim :D) and what I found was that whatever is being passed to.

after() will also work on disconnected DOM nodes. Try this var elementToAdd = $('').html('header') Įdit 2: ok, I am not extremely good at this, but here goes.Īs pointed out, the jQuery documentation indeed notes that the element may not be attached to the DOM.Īs of jQuery 1.4. after works with elements that have not been added to the DOM yet.