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  • ASP.NET MVC solution to a forms application?

    - by Gloria Huang
    Hello, We're building a survey system and utilising ASP.NET MVC and wondered if anyone can offer suggestions on the architecture. Here's the problem we're trying to solve. Essentially an agency sends out several surveys every year. They're very structured and not like SurveyMonkey style of surveys - they're actually applications of feedback. Much like a Visa Application there are lots of things they need to do and sometimes it takes them 2-3 weeks to fill it out. They can upload files (proofs of purchase etc - PDF/JPG) and also multiple "items". Eg. Say for instance they've worked for McDonalds, there could be 20 different franchises, they build a list of locations they've worked. 3 weeks later there could be another 3 new locations and 2 may have closed down. So we need to ensure the forms are able to handle those situations. The forms themselves (markup and data) change every year - I should mention that this for a taxation/finance/budget system. We were thinking of using MVC, using Xml to store the data (temporarily), XSD to validate the data, XSL to transform the data to presentable markup (for them to fill out) and then once they "Submit" an application it gets stored into the DB in relevant areas. When the user starts the application process, they can save the progress so far (we validate whatever they entred and ignore any they havent), save it as an Xml blob and store in the DB. When they're finally ready to submit it, then we do a full validation and upload the files and store them securely (it has their business proofs and accounting statements) and then run some workflows. What I'm really concerned about is how to manage changing forms versions (a year later). How are form/application systems written these days? We have 2 months to pull this off and about 30 forms to deliver. So 30xXML, 30xXSD, 30xXSL.

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  • Hadoop or Hadoop Streaming for MapReduce on AWS

    - by aeolist
    I'm about to start a mapreduce project which will run on AWS and I am presented with a choice, to either use Java or C++. I understand that writing the project in Java would make more functionality available to me, however C++ could pull it off too, through Hadoop Streaming. Mind you, I have little background in either language. A similar project has been done in C++ and the code is available to me. So my question: is this extra functionality available through AWS or is it only relevant if you have more control over the cloud? Is there anything else I should bear in mind in order to make a decision, like availability of plugins for hadoop that work better with one language or the other? Thanks in advance

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  • Issues with Rails, Amazon S3, and protected URLs

    - by Shpigford
    So I followed this little tutorial about protecting downloads of files that are uploaded to Amazon S3 with Paperclip. When I've developed locally, it's worked fine, but since pushing the exact same code to a production server...I now get this error from Amazon when I try to access the files: <Error> <Code>InvalidArgument</Code> <Message>Either the Signature query string parameter or the Authorization header should be specified, not both</Message> <ArgumentValue>Basic dGVjaHVrdWxlbGU6ZWxlbHVrdWhjZXQ=</ArgumentValue> <ArgumentName>Authorization</ArgumentName> <RequestId>F6E455857C54F95A</RequestId> <HostId>X4QA2pw9wpHtJtJ2T8qxCyINjq4PLHQVF4VrlYjpX7Ayh694BgQprh5p8H7NRCAt</HostId> </Error> Example URL: http://s3.amazonaws.com/media.example.com/assets/videos/1/original.mov?AWSAccessKeyId=MY_ACCESS_KEY&Expires=1271972624&Signature=7wWH2WYHPO0o9szwPJbimUMqAig%3D That URL is generated using AWS::S3::S3Object.url_for using the aws-s3 gem. So...not even sure where to start. The fact that it works fine when the app is running locally but not when in production really doesn't make sense. The production server is running Ubuntu 8.04.4 LTS (Hardy).

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  • JSF vs Stripes, which is best?

    - by Davoink
    Which is best, or in other words, whish is easiest to use? Stripes or JSF. Although I haven't used both in anger I need to gauge what is the best option to work with for both starting new projects and converting existing Struts projects. I have a fear that JSF won't render as nicely as I want but what are others experiences? Seems Stripes is far more straight forward, would I be correct in this assumption? Cheers.

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  • Amazon EC2 EBS automatic backup one-liner works manually but not from cron

    - by dan
    I am trying to implement an automatic backup system for my EBS on Amazon AWS. When I run this command as ec2-user: /opt/aws/bin/ec2-create-snapshot --region us-east-1 -K /home/ec2-user/pk.pem -C /home/ec2-user/cert.pem -d "vol-******** snapshot" vol-******** everything works fine. But if I add this line into /etc/crontab and restart the crond service: 15 12 * * * ec2-user /opt/aws/bin/ec2-create-snapshot --region us-east-1 -K /home/ec2-user/pk.pem -C /home/ec2-user/cert.pem -d "vol-******** snapshot" vol-******** that doesn't work. I checked var/log/cron and there is this line, therefore the command gets executed: Dec 13 12:15:01 ip-10-204-111-94 CROND[4201]: (ec2-user) CMD (/opt/aws/bin/ec2-create-snapshot --region us-east-1 -K /home/ec2-user/pk.pem -C /home/ec2-user/cert.pem -d "vol-******** snapshot" vol-******** ) Can you please help me to troubleshoot the problem? I guess is some environment problem - maybe the lack of some variable. If that's the case I don't know what to do about it. Thanks.

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  • how to access webservice from one project to another project

    - by prince23
    hi, i have an project with name called(dbservice layer) which is in path: d:\webservice\DBService. here i have an webservice which connects to DB and returns an object of an class. once i added an reference here i get an url:http://localhost:2371/Jobs.svc now i have another project name (UILayer) whic is in path: E:\School\UILayer i added an service reference here with url as http://localhost:2371/Jobs.svc but i get an messgae telling service is unable why is that happening. if both my webserivce layer and ui layer are in same project. then i able to use the webserive in the ui layer. and get the required output so i wanted to know is there any way we can acesss the webserive from one project to another project thanks in advance prince

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  • Getting 401 on Twitter OAuth POST requests

    - by Baishampayan Ghose
    I am trying to use Twitter OAuth and my POST requests are failing with a 401 (Invalid OAuth Request) error. For example, if I want to post a new status update, I am sending a HTTP POST request to https://twitter.com/statuses/update.json with the following parameters - status=Testing&oauth_version=1.0&oauth_token=xxx& oauth_nonce=xxx&oauth_timestamp=xxx&oauth_signature=xxx& oauth_consumer_key=xxx&in_reply_to=xxx&oauth_signature_method=HMAC-SHA1` My GET requests are all working fine. I can see on the mailing lists that a lot of people have had identical problems but I could not find a solution anywhere. I am using the oauth.py Python library.

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  • Why doesn't border-radius work properly on text inputs in MobileSafari?

    - by abrahamvegh
    Here is a reference HTML document: <!DOCTYPE html> <html> <head> <style> body { background-color: #000; } input { -webkit-border-radius: 20px; } </style> </head> <body> <input type="text" value="text" /> </body> </html> The border-radius renders fine on Safari/WebKit-based desktop browsers, but on the "MobileSafari" variant, namely the iPhone and iPad browsers, it renders with this strange box, which destroys the illusion of rounded corners when the input is being displayed on top of a differently-colored background.

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  • problem showing pictures stored outside web root folder

    - by David
    On a website users can upload pictures. For security reasons these are stored outside the webroot (public_html) folder. When I need to display the picture, I send the headers and have "readfile" read and output the picture data, like so: header("Pragma: public"); header("Expires: 0"); // set expiration time header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header('Content-type: image/jpg'); header('Content-Length: ' . $filesize); readfile($path_url . '/' . $photo); This works great, but the site is growing and this is starting to be a burden on the server. Question: is there a way to send the picture or picture data to the user, without the server first having to load the picture (obviously with the picture still being stored outside the webroot folder)? Thanks! David

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  • What is the general process of web hosting?

    - by ggfan
    I want to upload my site public so people can use it. I am currently using a free PHP webhosting company that supports up to a certian amount. When sites that say they offer unlimited upload, data, etc for like $10/month, is that all you need to run a big site? Or how do I host a big site, if it gets popular?

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  • Thumbnails from HTML pages created and used automatically in web application

    - by Jesper Rønn-Jensen
    I am working on a Ruby on Rails app that visualizes product trees. The tree is built of nodes an everything is rendered in HTML/CSS3. Some of the products make several hundred SQL queries as the tree builds up (up to 800 queries on the biggest tree). I'd like to have small thumbnails of each tree to present it on an index page. So rendering each tree once again and modifying CSS to make a tiny representation is an option. But i think it's probably easier to generate thumbnails, crop, cache, and show these on the index page. Any ideas on how to do this? Any links/articles/blog posts that could help me?

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  • How could I embed a html/css/js view in a webstart application

    - by phmr
    I would like to use a html/css/js view in my webstart project without requesting all permissions. I figured out that I could use the java HTTPServer to process the requests but I need a way to avoid using real sockets, so that the HTTPServer instantiation doesn't ask for some permission. Do you know any projects that achieve that ? and if not, what should I do to get an HTTPServer completely working locally (without hitting boundaries...) ? edit: maybe an HTTPServer is too much, I maybe only need a HttpHandler..

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  • Dashcode code translation

    - by Alex Mcp
    Hi, a quick, probably easy question whose answer is probably "best practice" I'm following a tutorial for a custom-template mobile Safari webapp, and to change views around this code is used: function btnSave_ClickHandler(event) { var views = document.getElementById('stackLayout'); var front = document.getElementById('mainScreen'); if (views && views.object && front) { views.object.setCurrentView(front, true); } } My question is just about the if conditional statement. What is this triplet saying, and why do each of those things need to be verified before the view can be changed? Does views.object just test to see if the views variable responds to the object method? Why is this important? EDIT - This is/was the main point of this question, and it regards not Javascript as a language and how if loops work, but rather WHY these 3 things specifically need to be checked: Under what scenarios might views and front not exist? I don't typically write my code so redundantly. If the name of my MySQL table isn't changing, I'll just say UPDATE 'mytable' WHERE... instead of the much more verbose (and in my view, redundant) $mytable = "TheSQLTableName"; if ($mytable == an actual table && $mytable exists && entries can be updated){ UPDATE $mytable; } Whereas if the table's name (or in the JS example, the view's names) ARE NOT "hard coded" but are instead a user input or otherwise mutable, I might right my code as the DashCode example has it. So tell me, can these values "go wrong" anyhow? Thanks!

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  • Web P2P video confrence solution

    - by dtroy
    I'm looking for the best possible solution which will allow me to incorporate live video/audio conference between 2 users(only 2 at this point) into a flash gaming platform. The video chat is not just an extra feature, it's the main one. I'm mainly looking at open source implementations or something I'll be able to implement myself, but will consider commercial products if they are exactly what I need. Here are a few things I've looked at, but so far, I didn't find any of them good enough: Flash player 10's P2P capabilities sound promising, but I am aware of the fact that Adobe has not release any information on the RTMFP protocol and that there is no commercial server which supports it at this point. Stream all the video/audio live through a flash server (not p2p), but from my personal experience you don't get a smooth conversation. I think TokBox uses this method Java applets are a possible solution too (to perform p2p), but I don't think it will be a nice and elegant solution to combine them in the game at this point (and requires the user to authorize them). BTW, I couldn't find any useful implementations. So, If you know of any, i'll look into them. Google Gmail Video Chat uses a custom (and proprietary) browser plug-in which does the p2p and streams the video/audio into the flash player. This is a possible solution, but I rather not implement the entire p2p protocol stack + browser plug-in at this stage and concentrate on other aspect of the game itself. I think they are using XMPP based protocol similar to Jingle and they've release a Jingle librarby but without the video confrencing implementation. EDIT: In response to Branden: I am aware of Adobe Stratus. Stratus is a beta, hosted rendezvous service that aids establishing communications between Flash Player endpoints (RTMFP server). This current release of the Stratus is prerelease and is designed for evaluation purposes only. The service is not final. There is no guarantee that the service will continue to exist in the future or any information about the future cost. That's why I don't think it can be used as a commercial solution. At least not yet. I'd appreciate your suggestions and advice. thanks!

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  • How to disable Safari Reader in a web page

    - by michael
    I'm curious to know more about what triggers the Reader option in Safari and what does not. I wouldn't plan to implement anything that would disable it, but curious as a technical exercise. Here is what I've learned so far with some basic playing around: You need at least one H tag It does not go by character count alone but by the number of P tags and length Probably looks for sentence breaks '.' and other criteria Safari will provide the 'Reader' if, with a H tag, and the following: 1 P tag, 2417 chars 4 P tags, 1527 chars 5 P tags, 1150 chars 6 P tags, 862 chars If you subtract 1 character from any of the above, the 'Reader' option is not available. I should note that the character count of the H tag plays a part but sadly did not realize this when I determined the results above. Assume 20+ characters for H tag and fixed throughout the results above. Some other interesting things: Setting <p style="display:none;"> for P tags removes them from the count Setting display to none, and then showing them 230ms later with Javascript avoided the Reader option too I'd be interested if anyone can determine this in full.

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  • How does a web browser work?

    - by Anil Namde
    I have tried to find good documentation of browsers using google but failed to get what I am looking for. Can someone guide me to a location where I can actually see how a browser functions? The whole purpose of the exercise is to get answers for following queries and more like these: How images, CSS and JS files are downloaded How JS is executed How an Ajax request is executed and many more like these..... Thanks all,

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  • CSS and Page Size and Horizontal Scrollbar

    - by Steve
    When I added some CSS stuff to my page, the page got wider and and horizontal appeared even the content is very minimal and does not require to scroll. How can I remove it. I used the following to remove it but it appears as a hack and I am just playing around with CSS, so is there a proper way to do this

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  • Is it possible to deploy a SOAP server with Axis without using WSDD?

    - by Alceu Costa
    In the project I am working I have deployed a SOAP server using Deployment Descriptors (WSDD) files. To do that a webserver (e.g tomcat, jetty) is started and then the following command is executed: java -cp %AXISCLASSPATH% org.apache.axis.client.AdminClient deploy.wsdd What I need is to skip the above command to avoid a call to the Axis AdminClient. Is it possible to deploy my webservice as war file? Note: A solution with JWS can't be used due to its limitations.

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  • Error while launching soapUi 3.01

    - by Ayrad
    soapui.bat Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/cl i/CommandLineParser Where can I find this library? I already put JAVA HOME to my sdk and I am using windows XP. Any ideas how I can resolve this?

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  • ColdFusion MVC frameworks & RESTful Service mismatch?

    - by Henry
    Most CF MVC Frameworks use the front controller pattern. Usually Search Engine Safe (SES) plugin together with URL Rewrite are used to construct friendly URLs. However, when it comes to implementing RESTful services, using a MVC framework seems like a layer of complexity added on top of another layer of complexity. How should one tame this beast? Any nice and clean approach of supporting RESTful services with ColdFusion? Any MVC framework out there that can expose RESTful services easily? Thanks

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  • How can HTML5 "replace" Flash?

    - by Kassini
    A topic of debate that's seen a resurgence since the unveiling of the iPad is the issue of Flash versus HTML5. There are those that suggest that HTML5 will one day supplant/replace Adobe Flash. I do not develop software that runs in a browser, so my (limited) understanding is: HTML is a pure-text markup language that is delivered over HTTP to a client browser. The client browser interprets the markup and renders (with varying degrees of success) the page according to an standard specification. Adobe Flash is a propriety framework for working with audio, video, sound and raster/vector graphics. It requires special authoring tools (a compiler perhaps?) and a custom player that's available as a plug-in to most common browsers. Could someone please explain (to this C/C++ developer) how it is possible from a technical/coding point-of-view that a text-based markup language (HTML5) could be considered a replacement to a multimedia framework (Flash)? Please no opinionated arguments - just technical facts.

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