Re: [jQuery] Best way for storing user preferences?
Raffael Luthiger wrote: 3) Every time the page is loaded the js-script asks the server for a XML (or JSON) file with the preferences in there. Option 3, but save the data you got from the server in a cookie, which you destroy after 1 day or something like that. Each time the user changes the div, a new cookie is set and data is send back to the server. This saves you half in traffic and is the best solution if you ask me. Gilles p.s. there is a jQuery cookie plugin :p ___ jQuery mailing list discuss@jquery.com http://jquery.com/discuss/
Re: [jQuery] Best way for storing user preferences?
Raffael Luthiger wrote:
2) The js-script gets generated each time the page is called. And the
corresponding vars are set in there.
3) Every time the page is loaded the js-script asks the server for a XML
(or JSON) file with the preferences in there.
5) More (and better) ideas?
I'd use a combination of these.
This same problem plagued me for a while too, I didn't like the idea of
generating JS on the fly, and an ajax request seemed overkill,
then it suddenly struck me today:
From the backend, serialize your data as JSON, and place it in the
value attribute of a hidden input element. eg:
in HTML:
input type=hidden id=state value={hide:['section1','section2']}/
then in JS:
eval('var state = ' + $('#state').val());
I'm currently writing a plugin to pull JSON data from a document
like this (roughly based on XForms model/instance concepts), although
as I say I've only just started this today :)
- Mark Gibson
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Re: [jQuery] Best way for storing user preferences?
I'd go for something like option 4, but instead of the custom attribute/DTD stuff, just give it a classname. i.e.: div class=closed/div Luke Raffael Luthiger wrote: Hi, I've seen searching lately for a good way of storing preferences which a jQuery script needs later on. The specific information the script needs is the starting state of a div element (either open or closed). The preferences are stored in a DB and sent from there somehow to the browser. The sent and storing part is now the part I am searching for. After searching around for a while I found several ideas/solutions. But none seems to be perfect for me. So I wanted to ask you what is the best way to do it: 1) Store the information in an invincible div at the end of the page. And then parse this div. E.g: div id=prefs var1: value1; var2: value2; /div 2) The js-script gets generated each time the page is called. And the corresponding vars are set in there. 3) Every time the page is loaded the js-script asks the server for a XML (or JSON) file with the preferences in there. 4) Write a XHTML DTD module in order to extend the div element with a state-attribute. E.g: div state=closed 5) More (and better) ideas? To say is that those pages are often reloaded. From my point of view 3) generates to much traffic on the net. 1) is just a hack and therefor not really a good solution. I have my jQuery scripts already in an external file. This way they can be cached by the browser and don't have to be sent every time. So I don't really like 2) either. Right now I would go with 4) unless someone has a better idea. Does anybody have a better solution? Raffael ___ jQuery mailing list discuss@jquery.com http://jquery.com/discuss/ -- zinc Roe Design www.zincroe.com (647) 477-6016 ___ jQuery mailing list discuss@jquery.com http://jquery.com/discuss/
Re: [jQuery] Best way for storing user preferences?
Thanks Gilles, Mark and Luke! I was thinking about the cookie as well. But the problem I see here that a cookie can have in the maximum the size of 4k. It's not that I would reach the limit now, but I don't want to run into strange problems as soon as the application get larger over time. From this point of view Mark's solutions is more flexible. And I can generate those hidden input fields when I generate the page as well. The idea with the classes can get a little bit messy since I already have IDs and classes on those divs. At least I see that nobody would go for my favorite option. So I can probably drop it. Raffael Webunity | Gilles van den Hoven wrote: Option 3, but save the data you got from the server in a cookie, which you destroy after 1 day or something like that. Each time the user changes the div, a new cookie is set and data is send back to the server. This saves you half in traffic and is the best solution if you ask me. ___ jQuery mailing list discuss@jquery.com http://jquery.com/discuss/
Re: [jQuery] Best way for storing user preferences?
Raffael Luthiger wrote: Thanks Gilles, Mark and Luke! I was thinking about the cookie as well. But the problem I see here that a cookie can have in the maximum the size of 4k. It's not that I would reach the limit now, but I don't want to run into strange problems as soon as the application get larger over time. From this point of view Mark's solutions is more flexible. And I can generate those hidden input fields when I generate the page as well. Use the cookie to set a unique id, the get the uid and do an ajax call to the server to get the larger state info from a database, based on the uid. -Steve The idea with the classes can get a little bit messy since I already have IDs and classes on those divs. At least I see that nobody would go for my favorite option. So I can probably drop it. Raffael Webunity | Gilles van den Hoven wrote: Option 3, but save the data you got from the server in a cookie, which you destroy after 1 day or something like that. Each time the user changes the div, a new cookie is set and data is send back to the server. This saves you half in traffic and is the best solution if you ask me. ___ jQuery mailing list discuss@jquery.com http://jquery.com/discuss/ ___ jQuery mailing list discuss@jquery.com http://jquery.com/discuss/
