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• Does Seaside scale?

  - by Richard Durr

  Seaside is known as "the heretical web framework". One of the points that make it heretical is that it has much shared state. That however is something which, in my current understanding, hinders easy scaling. Ruby on rails on the other hand shares as less state as possible. It has been known to scale pretty well, even if it is dog slow compared to modern smalltalk vms. flickr uses php and has scaled to an extremly big infrastructure... So has anybody some experience in the scaling of Seaside?

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• django-uni-form helpers and CSRF tags over POST

  - by linked

  Hi, I'm using django-uni-forms to display my fields, with a rather rudimentary example straight out of their book. When I render the form fields using <form>{%csrf_tag%} {%form|as_uni_form%}</form>, everything works as expected. However, django-uni-form Helpers allow you to generate the form tag (and other helper-related content) using the following syntax -- {% with form.helper as helper %}{% uni_form form helper%}{%endwith%} -- This creates the <form> tag for me, so there's nowhere to embed my own CSRF_token. When I try to use this syntax, the form renders perfectly, but without a CSRF token, and so submitting the form fails every time. Does anyone have experience with this? Is there an established way to add the token? I much prefer the second syntax, for re-use reasons. Thanks!

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• Internet and Intellisense bad for your memory?

  - by Barry Jones

  Having programmed for a while now I have noticed that I am becoming more and more reliant on the internet and intellisense to do my job. But I was wondering how much that has effected my knowledge over the past year or so. But does this matter? For example I am more likely now to remember that when I need to program against objects I have no knowledge about, I will go to the System.Reflection namespace and a quick look down the list will provide me with enough detail to get going again. But if you was to ask me which classes etc are required I would struggle to name them all. This problem of remembering seems to manifest itself more when going for interviews when people seem to focus more on the minute detail of obscure areas of the .NET framework and not on the wide and varied knowledge and experience of the applicant. Anyway I digress. Does anyone else think that maybe its time to turn of the intellisense and try and find better ways to learn, then quick fixes and work arounds of the internet?

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• Adding a red5 app in a multiuser website

  - by Zakaria

  hi everybody, I have an mvc php website where users can publish their public information: http://www.example.com/foobar/profile. Beside this project, based on some red5 samples, I have an application (done with Flex) that sends audio: rtmp://server/sendAudio (very basic but works). I want to create for each subscribed on my website an admin part where can send an audio stream: http://admin.example.com/foobar. And, when someone goes on their public profile, they can listen to the streamed audio: http://www.example.com/foobar/profile). How can I use my red5/flash app dynamically with my php website so that my users can broadcast their proper canal? Do you have some experience to share ? Thank you, Regards.

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• What XSS/CSRF attacks (if any) to be aware of when allowing video embeds?

  - by fireeyedboy

  I've been assigned a project for a website where users will be allowed to upload video's (using a YouTube API) but more importantly (for me) they will also be allowed to submit video embed codes (from numerous video sites, YouTube, Vimeo, etc. etc.). Having no experience with allowing users to embed video: How can I best protect against cross site scripting and/or cross site request forgery attacks specifically for video embedding? What are some of the common pitfalls to watch for? At a minumum I would think to strip all tags except <object> and <embed>. But I have a feeling this will not be enough, will it? If it is of importance, the environment will be: PHP/Zend Framework MySQL Bonuspoints: Is there a common minimum golden rule/code template for video embed codes that are valid across all video sites that I could use to filter the input?

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• Which machine learning library to use

  - by Space_C0wb0y

  I am looking for a library that, ideally, has the following features: implements hierarchical clustering of multidimensional data (ideally on similiarity or distance matrix) implements support vector machines is in C++ is somewhat documented (this one seems to be hardest) I would like this to be in C++, as I am most comfortable with that language, but I will also use any other language if the library is worth it. I have googled and found some, but I do not really have the time to try them all out, so I want hear what other people had for experiences. Please only answer if you have some experience with the library you recommend. P.S.: I could also use different libraries for the clustering and the SVM.

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• WCF Caching Solution - Need Advice

  - by Brandon

  The company I work for is looking to implement a caching solution. We have several WCF Web Services hosted and we need to cache certain values that can be persisted and fetched regardless of a client's session to a service. I am looking at the following technologies: Caching Application Block 4.1 WCF TCP Service using HttpRuntime Caching Memcached Win32 and Client Microsoft AppFabric Caching Beta 2 Our test server is a Windows Server 2003 with IIS6, but our production server is Windows Server 2008, so any of the above options would work (except for AppFabric Caching on our test server). Does anyone have any experience with any of these? This caching solution will not be used to store a lot of data, but it will need to be fetched from frequently and fast. Thanks in advance.

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• .NET Recaptcha https

  - by TygerKrash

  We've started using the ASP.NET recaptcha control and it works fine. but one of the requirements we have is that all outbound traffic goes over Https. I know that recaptcha supports https, but It's not clear how to configure (or even if it is configurable) when using the ASP.NET plugin option. has anyone got any experience of this? I'll expand a little on what I've found so far.... The Recaptcha package contains 3 public classes RecaptchaControl, RecaptchaValidator and RecaptchaResponse RecaptchaControl is an Asp.NET control, the recaptcha specific methods on there seem to be concerning themes/look and feel. An instance of the Validator has a RemoteIP field (which I presume would represent the verification server), but I can't a way of binding that to the control. RecaptchaResponse seems to more or less represent an enum with possible responses (valid/invalid/failed to connect).

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• Database design: Using hundred of fields for little values

  - by user964260

  I'm planning to develop a PHP Web App, it will mainly be used by registered users(sessions) While thinking about the DB design, I was contemplating that in order to give the best user experience possible there would be lots of options for the user to activate, deactivate, specify, etc. For example: - Options for each layout elements, dialog boxes, dashboard, grid, etc. - color, size, stay visible, invisible, don't ask again, show everytime, advanced mode, simple mode, etc. This would get like 100s of fields ranging from simple Yes/No or 1 to N values..., for each user. So, is it having a field for each of these options the way to go? or how do those CRMs or CMS or other Web Apps do it to store lots of 1-2 char long values? Do they group them on Text fields separated by a special char and then "explode" them as an array for runtime usage? thank you

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• Which language to learn C# or Salesforce.com/apex for C++ programmer

  - by polapts

  Being a C++ programmer with 7-8 years of experience, I wanted to know the market trends. When I searched a little bit I found more jobs with keyword C# than C++ or Java. I am just wondering if it is a good idea to learn C# or Java from a career perspective. Also, I read somewhere about Salesforce/apex. It was mentioned that this is something in vogue. So my question is which technology I should go for C#/Java/Salesforce(Apex) from career perspective? Thanks

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• Is OpenId easier or harder for users?

  - by Spines

  I'm wondering if I should use OpenId for my website. My first exposure to OpenId was StackOverflow, and I found it confusing that they only had a login link, yet no register link. Now that I've learned about OpenId though I prefer it over the regular way of registration. I have a feeling that only a small percentage of the internet users know how to login with a third party account provider, and most would prefer just to create an account. It makes sense for StackOverflow to use OpenId since the target audience is tech-savvy, however my website caters to the general public. Does anyone have any statistics or first hand experience with using OpenId versus regular registration?

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• Adobe Flex + Air or Java + JavaFX 2.0?

  - by kuyapangu

  Hey guys! I'm looking into a cloud-computing related career. I've recently graduated from school and have been meaning to study a new programming language. From what I understand, I need to get into RIA development for this. Flex and Java have certainly caught my attention, but I am torn as to whether focus on Flex then continue with Air, or study Java first and see how JavaFX 2.0 pans out, and then continue with Flex thereafter. I've no previous experience with either, and I'm sort of giving myself something like two years or so to learn. What do guys think? Thanks for the feedback! :)

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• Python Scraper for Javascript?

  - by Diego

  Hey all, Can anyone direct me to a good Python screen scraping library for javascript code (hopefully one with good documentation/tutorials)? I'd like to see what options are out there, but most of all the easiest to learn with fastest results... wondering if anyone had experience. I've heard some stuff about spidermonkey, but maybe there are better ones out there? Specifically, I use BeautifulSoup and Mechanize to get to here, but need a way to open the javascript popup, submit data, and download/parse the results in the javascript popup. <a href="javascript:openFindItem(12510109)" onclick="s_objectID=&quot;javascript:openFindItem(12510109)_1&quot;;return this.s_oc?this.s_oc(e):true">Find Item</a> I'd like to implement this with Google App engine and Django. Thanks!

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• Any AOP support library for Python ?

  - by edomaur

  I am trying to use some AOP in my Python programming, but I do not have any experience of the various libs that exists. So my question is : What AOP support exists for Python, and what are the advantages of the differents libraries between them ? Edit : I've found some, but I don't know how they compare : Aspyct Lightweight AOP for Python Edit2 : In which context will I use this ? I have two applications, written in Python, which have typically methods which compute taxes and other money things. I'd like to be able to write a "skeleton" of a functionnality, and customize it at runtime, for example changing the way local taxes are applied (by country, or state, or city, etc.) without having to overload the full stack.

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• Browser Side Photo Editing Library

  - by echox

  Hi! Currently I'm searching for a free solution to simple edit some photos at the users browser. Resizing and Cropping would be mandatory. I'm not searching for an online service (for example SUMO or PIXLR which are great), because I want to include the software into a WYSIWYG Editor. JavaScript would be really nice, but it would have to work in IE 8. Pixastic is a great example, but works only in modern browsers (not IE 8 :-/) Any suggestions what I could use? Maybe setting up some kind of image processing service with ImageMagick and communicating with it through AJAX could also be an solution? Has anyone gained some experience with such a solution?

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• PHP, MVC, 404 - How can I redirect to 404?

  - by Doug

  I'm trying to build my own MVC as a practice and learning experience. So far, this is what I have: <?php require "config.php"; $page = $_GET['page']; if( isset( $page ) ) { echo "isset is true"; if( file_exists( MVCROOT . "/$page.php" ) ) { include "$page.php"; } else { header("HTTP/1.0 404 Not Found"); } } ?> My problem here is, I can't use header to send to a 404 because the headers have been send already. Should I just redirect to a 404.html or is there a better way? Feel free to critique what I have so far (it's very little). I would love suggestions and ideas. Thanks!

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• If OOP makes problems with large projects, what doesn't?

  - by osca

  I learned Python OOP at school. My (good in theory, bad in practice) informatics told us about how good OOP was for any purpose; Even/Especially for large projects. Now I don't have any experience with teamwork in software development (what a pity, I'd like to program in a team) and I don't know anything about scaling and large projects either. Since some time I'm reading more and more about that object-oriented programming has (many) disadvantages when it comes to really big and important projects/systems. I got a bit confused by that as I always thought that OOP helped you keep large amounts of code clean and structured. Now why should OOP be problematic in large projects? If it is, what would be better? Functional, Declarative/Imperative?

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• How can I avoid running ActiveRecord callbacks?

  - by Ethan

  I have some models that have after_save callbacks. Usually that's fine, but in some situations, like when creating development data, I want to save the models without having the callbacks run. Is there a simple way to do that? Something akin to... Person#save( :run_callbacks => false ) or Person#save_without_callbacks I looked in the Rails docs and didn't find anything. However in my experience the Rails docs don't always tell the whole story. UPDATE I found a blog post that explains how you can remove callbacks from a model like this: Foo.after_save.clear I couldn't find where that method is documented but it seems to work.

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• Templating Engine Pros and Cons with Zend Framework

  - by manyxcxi

  I am getting familiar with Zend Framework (and MVC with PHP in general) for a personal project. I have previous experience with Smarty and have no major gripes with it, but I would like to use this project as a good in-depth learning exercise. Those of you familiar with different templating engines and ZF: Do you believe there are better templating engines than Smarty in conjunction with ZF and why? I would like to apply what I learn to the real world and production environments. The personal project will be fairly robust. User management, sessions, security, database interaction, form input, jQuery, etc.

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• How to query data from a password protected https website using C# .NET

  - by Addie

  I'd like my application to query a csv file from a secure website. I have no experience with web programming so I'd appreciate detailed instructions. Currently I have the user login to the site, manually query the csv, and have my application load the file locally. I'd like to automate this by having the user enter his login information, authenticating him on the website, and querying the data. The application is written in C# .NET. The url of the site is: https://www2.emidas.com/default.asp. I've tested the following code already and am able to access the file once the user has already authenticated himself and created a manual query. System.Net.WebClient Client = new WebClient(); Stream strm = Client.OpenRead("https://www3.emidas.com/users/<username>/file.csv");

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• How to set up Django app to make cookies work on subdomain

  - by Dzida

  Hi, I have deployed my application on subdomain.domain.com (it works only on that one subdomain). Everything works fine except the fact that from time to time users cannot log in to application (the message "Looks like your browser isn't configured to accept cookies. Please enable cookies, reload this page, and try again" is shown when trying to log into admin panel). I've noticed that restarting the web server eliminates this problem for some time. Does anyone have experience with setting up django project on subdomain and can guide me how to configure my application to make it work correctly without need to ocasionally make reset?

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• How can I create a new class instance from a class within a (static) class?

  - by Mervin

  I'm new to Java (have experience with C#), This is what i want to do: public final class MyClass { public class MyRelatedClass { ... } } public class OtherRandomClass { public void DoStuff() { MyRelatedClass data = new MyClass.MyRelatedClass(); } } which gives this error in Eclipse: "No enclosing instance of type BitmapEffects is accessible. Must qualify the allocation with an enclosing instance of type BitmapEffects (e.g. x.new A() where x is an instance of BitmapEffects)." this is possible in C# with static classes , how should it be done here?

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• How to get an internship with a low GPA?

  - by Jason Baker

  A lot of changed majors and some other mitigating circumstances have left me with a pretty low GPA. My GPA in the last couple of semesters hasn't been stellar, but my grades have gotten a LOT better. I want to try and start putting in some resumes to get a good internship this summer. I do think that I have some decent experience for someone at my level, but I see my GPA being a pretty big potential stumbling block. Is there anything I can do to help my chances of getting a good internship? (For the record, the mitigating circumstances aren't something I'd feel comfortable discussing with a potential employer. I'd prefer getting a job by proving my merit, not making excuses.)

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• Scripting language to embed into a Java server application

  - by Alexey Kalmykov

  I want to make a business logic of server side Java application as a set of scripts. So I need from a scripting engine: Maximum Java interoperability (i.e. Spring framework) Script reloading and recompiling Easy DB access from scripting language Clear and simple syntax (some DSL capabilities would be nice to have), easy learning curve for non-hardcore developers Performance and stability I had some experience in the similar project with Rhino and it was pretty good. But I want to see if there is something better. Currently I'm looking into Groovy. JRuby and Jython are a bit more complex than I need for this task. Any other suggestion? What to take into consideration?

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• Are view models used in rails?

  - by Valentin Vasilyev

  I'm starting to develop a small application in ruby on rails and many questions arise. I should say that I have about 1 year of experience with ASP.NET MVC and feel at home with models views and controllers. I've been using view models extensively (with the help of AutoMapper) and now wondering if view models are used similarly in rails camp. From various examples (rails casts mainly) I've gathered that it is common to either combine data from multiple models right in your view (which is frowned upon in ASP.NET MVC), or to use virtual attributes on models to obtain "missing" data. I know that business model should not be modelled after UI needs, for example there should not be a 'password confirm' property in your model, this should be a view model property. Rails virtual properties seem to violate this principle. How is it done in rails? Thanks.

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