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  • How to manage feeds with subclassed object in Django 1.2?

    - by Matteo
    Hi, I'm trying to generate a feed rss from a model like this one, selecting all the Entry objects: from django.db import models from django.contrib.sites.models import Site from django.contrib.auth.models import User from imagekit.models import ImageModel import datetime class Entry(ImageModel): date_pub = models.DateTimeField(default=datetime.datetime.now) author = models.ForeignKey(User) via = models.URLField(blank=True) comments_allowed = models.BooleanField(default=True) icon = models.ImageField(upload_to='icon/',blank=True) class IKOptions: spec_module = 'journal.icon_specs' cache_dir = 'icon/resized' image_field = 'icon' class Post(Entry): title = models.CharField(max_length=200) description = models.TextField() slug = models.SlugField(unique=True) def __unicode__(self): return self.title class Photo(Entry): alt = models.CharField(max_length=200) description = models.TextField(blank=True) original = models.ImageField(upload_to='photo/') class IKOptions: spec_module = 'journal.photo_specs' cache_dir = 'photo/resized' image_field = 'original' def __unicode__(self): return self.alt class Quote(Entry): blockquote = models.TextField() cite = models.TextField(blank=True) def __unicode__(self): return self.blockquote When I use the render_to_response in my views I simply call: def get_journal_entries(request): entries = Entry.objects.all().order_by('-date_pub') return render_to_response('journal/entries.html', {'entries':entries}) And then I use a conditional template to render the right snippets of html: {% extends "base.html" %} {% block main %} <hr> {% for entry in entries %} {% if entry.post %}[...]{% endif %}[...] But I cannot do the same with the Feed Framework in django 1.2... Any suggestion, please?

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  • How can I get sessions to work if I'm using Google App Engine + Django 1.1?

    - by user341642
    Is there a way for me to get sessions working? I know Django has built in session management, and GAE has some tools for it if you're using their watered down version of Django 0.96, but is there a way to get sessions to work if you're trying to use GAE w/ Django 1.1 (i.e. use_library() call). I assume using a db-backed session doesn't work, and a file system backed one won't work b/c we don't have access to the filesystem if we deploy to the Google production servers. This kinda worked (as in didn't crap out) when I used SessionMiddleware backed by a local-memory backed cache and a non-persistent cache (i.e. setting SESSION_ENGINE to django.contrib.sessions.backends.cache). But the session never seems to persist in this case, no matter how I set the timeouts. A new session key is generated on every page reload. Maybe this is b/c the GAE assumes complete statelessness with each request and blows away my local cache? Apologies in advance, I'm pretty new to Python. Any suggestions would be greatly appreciated.

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  • Loading dynamic content and rewrite URL on Hashchange event with Jquery Mobile

    - by user3611500
    I'm building a mobile version for my website using Jquery Mobile API. The framework provides automate AJAX navigation processing. But as far as i know it require "real" pages for loading purpose. What i want to do is override the automate navigation process of it and process the hashchange on my own. But i can't not rewrite the url using window.hashChange, which is running well on my non-mobile website version : $(function () { $(window).off().hashchange(function () { if (location.hash.length > 1) { PageSelect(); } }); $(window).hashchange(); }); I just only want to take advantage on jquery mobile interfaces, i don't want anything with its automate ajax navigation stuff ! I tried to disable it using ajaxEnabled() but got no luck.

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  • Creating Wizard in ASP.NET MVC (Part 2)

    - by bipinjoshi
    In Part 1 of this article series you developed a wizard in an ASP.NET MVC application. Although the wizard developed in Part 1 works as expected it has one shortcoming. It causes full page postback whenever you click on Previous or Next button. This behavior may not pose much problem if a wizard has only a few steps. However, if a wizard has many steps and each step accepts many entries then full page postback can deteriorate the user experience. To overcome this shortcoming you can add Ajax to the wizard so that only the form is posted to the server. In this part of the series you will convert the application developed in Part 1 to use Ajax.http://www.binaryintellect.net/articles/8e278bfa-7244-4e3e-b5aa-2954a91331da.aspx 

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  • Here we go again - quest for web hosted forum via javascript

    - by jim
    Hello all, disclaimer If this is the wrong location for this question, then please advise me accordingly. backgound I've been using Disqus and intense debate as a 'comments' service for a variety of my sites to great effect and love the fact that i get alot of the facebook/twitter integration 'for free', as well as the SEO benefits. request To this end, does anyone out there know of similar services that can be used to pull entire forums/threaded discussions into the app in a similar fashion (i.e. via ajax webservices). google has been at a loss to turn anything up on this front and i'm therefore wondeing if it's unlikely that such a 'service' exists. respect hope this stikes a chord out there... btw - altho using this in asp.net mvc, I'm aware that this technology could be used on any platform capable of consuming javascript via ajax, thus the wide spread of 'tags'.

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  • Best way to redirect users back to the pretty URL who land on the _escaped_fragment_ one?

    - by Ryan
    I am working on an AJAX site and have successfully implemented Google's AJAX recommendation by creating _escape_fragment_ versions of each page for it to index. Thus each page has 2 URLs: pretty: example.com#!blog ugly: example.com?_escaped_fragment_=blog However, I have noticed in my analytics that some users are arriving on the site via the "ugly" URL and am looking for a clean way to redirect them to the pretty URL without impacting Google's ability to index the site. I have considered using a 301 redirect in the head but fear that Googlebot might try to follow it and end up in an endless loop. I have also considered using a JavaScript redirect that Googlebot wouldn't execute but fear that Google may interpret this as cloaking and penalize the website. Is there a good, clean, acceptable way to redirect real users away from the ugly URL if for some reason or another they end up arriving at the site that way?

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  • Application use on website

    - by Palmer
    Is there a good way to run a C# application on clientside in lieu of JavaScript? I have done some front end work with JavaScript and backend C# for web developing at an old job, but I am interested in hosting a website myself soon. I have a C# application I would like to be open source, but before people care to download I'd like them to be able to use it. At its basic level it's a simple text editor, but there's much more to it in the nitty gritty. I could write it in JavaScript, but it would require me to keep documentation and up to date changes on JavaScript and C# in that case. I was thinking of creating an AJAX panel and somehow loading my winform application into a frame, but I don't know how or what words to google because I've never done it before except AJAX.

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  • In practice, what are the key differences between Heroku and webfaction? [closed]

    - by jdotjdot
    I've been building and hosting webapps, mainly in Django and Flask, for some time now. Mainly, I've been hosting them on Heroku, because of the free tier and the ease of git-enabled application updating. I have seen that a lot of Django users prefer Webfaction. I looked through their offerings, and they seem to me like a standard web hosting service. Questions: Why might be webfaction considered a good hosting service for Django apps? If Heroku is generally called a "Platform-as-a-Service," what does that make Webfaction? Does it have any important similiarities/distinctions from Heroku that I might somehow be missing?

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  • How to repeat a POST request using Chrome's developer tools?

    - by Luke The Obscure
    Not sure if this is the right stack exchange to ask this, but here goes... I'm trying to wean myself off of Firebug, which has served me very well for a lot of years. One feature that seems to be missing in Chrome's dev tools is the ability to repeat an AJAX POST. In firebug I can right click on the request in the console and hit "Open in new tab" and the request is repeated exactly as it was originally sent. In Chrome, the same action just does a normal GET on the link, without any of the post data. Is there any way to repeat an AJAX POST in Chrome's dev tools?

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  • How to identify the client is a search robot?

    - by Yau Leung
    I have built my entire site using AJAX (indeed it's GWT). I have also implemented AJAX crawling proposed by Google. However, after the implementation, I found that neither Yahoo , Bing, nor Baidu implemented that scheme! I'm wondering if there is a way to identify the web client is a search robot. If they are, they will be shown the HTML snapshot I created. It will be best if I can identify them in APACHE level, then I can just do a mod_rewrite. But it's still ok if I can do that in PHP or GWT.

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  • If my URL's are static, but then parsed by Javascript, does that make it crawlable?

    - by Talasan Nicholson
    Lets say I have a link: <a href="/about/">About Us</a> But in Javascript [or jQuery] catches it and then adds the hash based off of the href attribute: $('a').click(function(e) { e.preventDefault(); // Extremely oversimplified.. window.location.hash = $(this).attr('href'); }); And then we use a hashchange event to do the general 'magic' of Ajax requests. This allows for the actual href to be seen by crawlers, but gives client-side users with JS enabled an ajax-based website. Does this 'help' the general SEO issues that come along with hashtags? I know hashbangs are 'ok', but afaik they aren't reliable?

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  • How to manually list set of urls for search engines to index

    - by MarutiB
    So I have created a video website which has thousands of videos and thousands of videos get added to it on a daily basis. Here is my problem :- I have created a website which basically loads the skeleton in html and puts all the content through javascript and Ajax. The problem is search engines aren't going anywhere except for the home page. Is there a way say in robots.txt where i give a link to a single html which has links to all these videos ? I agree my site is not accessible for a non-javascript user but stats show that this ratio is very low ( 0.2 % ). Is there a way I can still keep the complete AJAX website and still get each individual videos listed on google ?

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  • Google indexing pages with #! although we don't have any

    - by Benjamin Gruenbaum
    Our company has developed a Single Page Application using AngularJS and its routing. Google indexed our site decently with JavaScript but it did not index some pages very well so we have developed an HTML only version. We have followed the Ajax Crawling Specification posted here and have a <meta name='fragment' content='!'> tag and canonical urls. We expect http://www.example.com/foo/bar to be fetched from http://www.example.com/?_escaped_fragment_=/foo/bar. However, we have found out that when we rolled the AJAX specification we now have all pages indexed twice, once with the JavaScript version as http://www.example.com/foo/bar and once with the new version as http://www.example.com/#!/foo/bar. This is harmful to us since it's duplicate content and also mis-representing out site. I have tried looking for similar questions here and in the Google product forum but could not come up with anything.

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  • Vb.Net web browser control not firing document complete with AJAX web site.

    - by ajl
    The VB.Net desktop app uses the IE browser control to navigate the web. When a normal page loads the document_complete event fires and I can read the resulting page and go from there. The issue I am having is that the page I am driving is written with AJAX, so the document complete event never fires. Furthermore, when you view the source of the page after it loaded a new portion via AJAX, it hasn't change. How are people handling this? What are my options?

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  • How to prevent ajax toolkit DropDownExtender from closing on click?

    - by Abe Miessler
    I have the code below to implement a dropdownlist with checkboxes. My problem is that every time i click a checkbox the dropdownlist closes and i need to reopen it to select more checkboxes. How do i make it so the dropdownlist dosn't close until i click off of it? <asp:Panel ID="pnl_Items" runat="server" BorderColor="Aqua" BorderWidth="1"> <asp:CheckBoxList ID="cbl_Items" runat="server"> <asp:ListItem Text="Item 1" /> <asp:ListItem Text="Item 2" /> <asp:ListItem Text="Item 3" /> </asp:CheckBoxList> </asp:Panel> <br /> <asp:TextBox ID="tb_Items" runat="server"></asp:TextBox> <ajax:DropDownExtender ID="TextBox1_DropDownExtender" runat="server" DynamicServicePath="" Enabled="True" DropDownControlID="pnl_Items" on TargetControlID="tb_Items"> </ajax:DropDownExtender>

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  • ASP.NET MVC Ajax Form: Is enctype correct? Why doesn't file get uploaded?

    - by Fabio Milheiro
    In the case that the user doesn't have Javascript activated, in order to draw a form, I begin this way: <% using (Html.BeginForm("Create", "Language", FormMethod.Post, new {enctype="multipart/form-data"})) { %> If the user has Javascript activated, the following code is used: <% using (Ajax.BeginForm("Create", "Language", new AjaxOptions { UpdateTargetId = "CommonArea" }, new { enctype = "multipart/form-data" })) { %> The problem is this: In the first case, I can get the file uploaded using the following instruction in the business layer: // Get the uploaded file HttpPostedFile Flag = HttpContext.Current.Request.Files["Flag"]; In the second case, this instruction doesn't work. How do I know upload that file using the Ajax.BeginForm? Is the code right? Can anyone more experience advise about using jQuery plug-in to upload file before the form submission? Thank you

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  • MySql multiple selects batching in .net

    - by Amith George
    I have a situation in my application. For each x-axis point in my chart, I am plotting 5 y-axis values. To calculate each of these 5 values, I need to make 4 different queries. Ie, for each x-axis point I need to fire 20 sql queries. Now, I need to plot 40 such points in the my chart. Its resulting in a pathetic performance where it takes close to a minute to get all the data back from the database. Each of 4 different queries consists of a join between 2 tables. One has only 6 rows. The other close to 10,000. Each of the 4 queries has different WHERE clauses, so they are different queries. For each point in the x-axis, only the values for the where clauses change. I have tried combining each of the 4 queries into one big string. Basically batch the four selects. These are again batched for each y-axis value. So, for each x-axis point, I am now firing one big command that consists of 20 different select statements. Technically, I should be experiencing a big performance boost, right? Instead of hitting the db 40x5x4 = 800 times, I am now hitting it just 40 times. But instead of taking 60 seconds, it taking 50-55 seconds... not much of a help. I am using MySql 5.1, and the 6.1 version of its .Net connector. What can I do to improve the performance? Edit: One of the 4 queries is as follows: SELECT SUM(TIME_TO_SEC(TIMEDIFF(T1.col2, T1.col1))* T2.col1 / (3600 *1000)) AS TotalTime FROM Table T1 JOIN Table T2 ON T1.col3 = T2.col3 WHERE T1.col4 = 'i' AND T1.col1 >= '2009-12-25 00:00:00' AND T1.col2 <= '2009-12-26 00:00:00'; The other 3 queries are similar, only the where clause changes slightly. This set of 4 queries is fired 5 times. The first 3 times against the join of table T1 and T2, passing in different values for col4. And the next two times against the join of table T3 and T2 passing in different values for col4. These 5 values are the y-axis values for a particular x-axis point. The data returned by all these queries is the same format. so, we tried doing a UNION ALL on all these queries. No substantial difference. One strange thing, however, after indexing the foreign key on the table T1 [while it contained over a lakh records], the queries were using the index, but they had become slower. At times, the queries would take double the time to return the data.

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  • What are jQuery best practices regarding Ajax convenience methods and error handling?

    - by JonathanHayward
    Let's suppose, for an example, that I want to partly clone Gmail's interface with jQuery Ajax and implement periodic auto-saving as well as sending. And in particular, let us suppose that I care about error handling, expecting network and other errors, and instead of just being optimistic I want sensible handling of different errors. If I use the "low-level" feature of $.ajax() then it's clear how to specify an error callback, but the convenience methods of $.get(), $.post(), and .load() do not allow an error callback to be specified. What are the best practices for pessimistic error handling? Is it by registering a .ajaxError() with certain wrapped sets, or an introspection-style global error handler in $.ajaxSetup()? What would the relevant portions of code look like to initiate an autosave so that a "could not autosave" type warning is displayed if an attempted autosave fails, and perhaps a message that is customized to the type of error? Thanks,

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  • Winforms web browser control not firing document complete with AJAX web site.

    - by ajl
    The VB.Net desktop app uses the IE browser control to navigate the web. When a normal page loads the document_complete event fires and I can read the resulting page and go from there. The issue I am having is that the page I am driving is written with AJAX, so the document complete event never fires. Furthermore, when you view the source of the page after it loaded a new portion via AJAX, it hasn't change. How are people handling this? What are my options?

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  • How hard is it to modify the Django Models?

    - by alex
    I am doing geolocation, and Django does not have a PointField. So, I am forced to writing in RAW SQL. GeoDjango, the Django library, does not support the following query for MYSQL databases (can someone verify that for me?) cursor.execute("SELECT id FROM l_tag WHERE\ (GLength(LineStringFromWKB(LineString(asbinary(utm),asbinary(PointFromWKB(point(%s, %s)))))) < %s + accuracy + %s)\ I don't nkow why GeoDjango library cannot do this in MYSQL database. I hate writing RAW SQL for calculating distances between two points. Is there a way I can create my own library for Django that can handle this? If so, how hard is it?

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  • how to send a dynamic set of parameters to webmethod using jquery ajax method?

    - by kranthi
    hi, I am using jquery ajax method on my aspx page,which will invoke the webmethod in the code behind.Currently the webmethod takes a couple of parameters like firstname,lastname,address etc which I am passing from jquery ajax method using data:JSON.stringify({fname:firstname,lname:lastname,city:city}) now my requirement has been changed such that,the number and type of parameters that are going to be passed is not fixed for ex.parameter combination can be something like fname,city or fname,city or city,lname or fname,lname,city or something else.So the webmethod should be such that it should accept any number parameters.I thought of using arrays to do so, as described here. But I do not understand how can I identify which and how many parameters have been passed to the webmethod to insert/update the data to the DB.Please could someone help me with this? thanks

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  • How to make Asynchronous(AJAX) File Upload using iframe ?

    - by BugKiller
    Hi, I'm trying to make ajax file upload . I read that it is not possible to do that without using iframe . I wrote : <iframe id="uploadTrg" name="uploadTrg" height="0" width="0" frameborder="0" scrolling="yes"></iframe> <form id="myForm" action="file-component" method="post" enctype="multipart/form-data" target="uploadTrg"> File: <input type="file" name="file"> <input type="submit" value="Submit" id="submitBtn"/> </form> and using jquery form plugin : $('#myForm').ajaxForm({ dataType: 'json', success: function(data){ alert(data.toSource()); } }); The Result : the file is uploaded successfully and I can see the uploaded file , but a dialog box appears : since I send back a json result to display the file name + size etc .. My Question : How can I use the iFrame to be able to make " ajax file upload".

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