web-applications

iPhone Web App -- Links launched via "Home Screen" mode

Hi, I have an mobile web application that I'd like users to be able to use on "home screen mode" (that is, adding it as a bookmark to the homescreen, and then launching the web app via the home screen button). However, this seems to behave differently than if it the web application was accessed via mobile Safari. For example, whenever...

ASP.NET Web-Application Architectures / Patterns

Does anybody knows good, short and slim tutorials, which describe actual/modern web-application architectures / patterns (especially for ASP.NET based (classic and MVC) applications (maybe also with embedded Silverlight components) ? How would you you design today an ASP.NET application which uses different datasources (databases, servic...

Registering Users to a Login Database - Web Frontend?

I have a database which manages login information for an application, and find myself (for rather tragic reasons involving combo boxes - don't ask) needing to manage the registration of new users through a web frontend. Quite literally all it needs to do is have a single form composed of a few edit boxes and a handful of combo boxes. Kee...

efficient way to create a xls file in a jsp page

Hello, what is the most efficient way to create a xls file in a jsp page? I created an xls file using poi in jsp page, but if not the most efficient. Thanks ...

eCommerce systems with demo

I want to try some eCommerce systems to take look of how they implement the diffentent aspects Items publication Stock Sells Return Etc, Etc I'm developing a system myself (web application writen in PHP) and I have the feeling than I'm over complicating the process in several parts (particularly in the relations between products and ...

stay logged in in php application for +1 week

We have a php application written in zend framework and are wondering what would be the best way if we wanted to keep our users logged in for more than a day, e.g. a week or even more. Do we need sessions for that? (uses table space and memory?) or is it better to work with cookies? (security?) ...

Language-independent tutorial or book on web-apps

Is there any language-independent tutorial or book for developing web applications? For example implementation of login procedures, photo-gallery making etc, not focused on any particular language? ...

Streamline and make form/crud operations more efficient in web applications?

Hi everybody, When looking back at last weeks work (identical to many others), I've found myself spending the major part of my time putting together forms of which POST-data are used to perform database CRUD operations through my MVC-models. When reflecting over this, it becomes a bit worrying. It's not really appropriate to spend the ...

How to edit images using javascript in real time and save the edited image on the server?

Is it possible to edit images using a javascript library and then send the edited image to the server for saving. Edits will be in real time, means the user can see the edit result in the same time he is editing without the need to refresh the page. I want a javascript library to do some edits on an image on a webpage 'such as crop,...

How to detect if web script in Perl is run using ModPerl::Registry (mod_perl handler)?

Is it possible in to detect in web app run under mod_perl if it is run using ModPerl::Registry? I want to write script which would run under ModPerl::Registry (or similar handler), but can function also as mod_perl response handler. ...

Implementing Multitasking on an iPhone/iOS4 Web App

I am looking to build a web app that implements background audio and fast app switching. These features work out of the box, when run as regular Safari web pages, but as soon as you add the web-app-capable tag, and try to run in full screen mode, this functionality breaks. I did some testing and even the most basic web app will reload e...

Review my design: Password resetting facility for web site

When someone has lost a password, they click on the lost or forgotten password link. They will need to enter their email address, then answer their own secret question if the secret question is correct, an email will be sent to them with a link that expires after 24hrs. As the email is sent, a record is entered in a database table hold...

Is it possible to integrate JMX with SLAMD to monitor attributes during load testing

I'm about to undertake load testing of a web application that is suffering from intermittent failures in a production environment. I have enabled some JMX monitoring on certain components, e.g. an OSCache implementation, with the goal of gathering its statistics around the time of failure to determine how/if it contributes. I've been c...

Hosting for simple page with file upload

Hello, I need to make a simple page with an option for the user to send a form with an attached file (movie file, 2MB limit). What free hosting would be best for that purpose? I checked App Engine but in order to allow file uploads you need to store it in the datastore and there is a 1MB limit. Thanks Joel ...

Web App Architecture Question (Large DB, exponentially). Use Azure Tables or SimpleDB instead?

I have a web app that stores a large amount of text data. The db is currently increasing by 1GB a week. I expect this to grow exponentially as we get more customers, so 1GB this week, 2GB next week, 4GB the following week, then 8GB, etc... Right now this data is stored in a single MS SQL 2008 database that 10GB in size. Performance is ...

Learn mobile app development vs. continue web app development and hope mobile industry improves?

I'm building some web apps for clients. They're usually CRMs, project management systems, custom CMS, support system etc...ie. all work and business related systems. Often times, I think it would be awesome if the client had a mobile app to manage their web apps and the employees who use them. The challenge is building one mobile app ...

How to navigate around and get familiar with large Java/Java EE code base?

Hi All, This questions is inspired from How to navigate around and get familiar with large C or C++ code base ? This is indeed an major problem for someone how has just joined the team and who is not aware of Application Architecture and Code Design. Currently I am in similar situation but in my case I have very large Java/Java EE cod...

suitable web framework for compositing JSON data in to HTML

I'm looking for a good web framework for compositing multiple JSON sources fetched with HTTP requests in to static HTML. I am not looking to do this on the client-side (browser, javascript), I am looking for the best server-side solution. So, what I need to do is: Fetch several different JSON documents over HTTP Format that JSON as HT...

Matching all records in a datastore query

Is there a way to substitute: def get_objects(attr1,attr2,..): objects = Entities.all() if attr1 != None: objects.filter('attr1',attr1) if attr2 != None: objects.filter('attr2',attr2) .... return objects With a single query: Entities.all().filter('attr1',attr1).filter('attr2',attr2) By using som...

Mobile Safari, Web Apps, Site.Manifest and no internet connection

Using HTML5 and the Site.Manifest file, is it at all possible to create a web app that can be added to the iPhone/iPad home screen but have no requirement for an internet connection afterward? ...