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• Authentication for users on a Single Page App?

  - by John H

  I have developed a single page app prototype that is using Backbone on the front end and going to consume from a thin RESTful API on the server for it's data. Coming from heavy server side application development (php and python), I have really enjoyed the new different design approach with a thick client side MVC but am confused on how best to restrict the app to authenticated users who log in. I prefer to have the app itself behind a login and would also like to implement other types of logins eventually (openid, fb connect, etc) in addition to the site's native login. I am unclear how this is done and have been searching - but unsuccessful in finding information that made it clear to me. In the big picture, what is the current best practice for registering users and requiring them to login to use your single page app? Once a user is logged in, how are the api requests authenticated? Can I store a session but how do I detect for this session in the API calls? Any answers to this would be much appreciated!

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• Best thing to do about projects supporting multiple versions of Visual Studio?

  - by Earlz

  I have an open source project that works on .Net 2.0 and up. The thing is though that I prefer to use Visual Studio 2012, which forces the solution and project files to only work with VS2010/2012. What exactly should I do? I don't want for my users to have to create a solution from scratch if they don't have access to VS2010, but yet, I also don't want to attempt to keep 3 different project files in sync(VS2005, VS2008, and VS2010/2012) What is the usual solution for this?

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• what's included in a typical computer architecture class? [closed]

  - by sq1020

  Does this description fit what's usually included in a computer architecture class? Computer Organization and Assembly Language An introduction to the hardware organization and assembly language of the Intel processor. Topics include memory hierarchy and design- CPU design- pipelining- addressing modes- subroutine linkage- polled input/output- interrupts- high level language interfacing and macros.

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• New promising webdevelopment language?

  - by Rick

  I'm looking for a new language focused on webdevelopment. I know there are many current language/framework combination that are very suited for webdevelopment; ASP.Net, Ruby on Rails, PHP with numerous frameworks, etc... I like shiny new things! I like digging through language documentation or even an interpreter to figure out why something is not working the way I expect it to. Sure I could use an existing solution, but that wouldn't be fun! Are there any new up and coming language focused to webdevelopment (optionally language + webframework setup would be fine too)?

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• Ord function implementation in Delphi

  - by Federico Zancan

  Purely as an exercise at home, aimed to better understand some language basics, I tried to reimplement the Ord function, but I came across a problem. In fact, the existing Ord function can accept arguments of a variety of different types (AnsiChar, Char, WideChar, Enumeration, Integer, Int64) and can return Integer or Int64. I can't figure out how to declare multiple versions of the same function. How should this be coded in Delphi?

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• How do you update copyright notices?

  - by James

  So now it's 2011, and as I carry on coding on our active projects it's time to update some copyright notices. eg. Copyright Widgets Ltd 2010 to Copyright Widgets Ltd 2010, 2011 My question is when do you update the copyright notices? Do you change the notice in the head of a file the first time you work on that file? Since a module is one piece of code consisting of many files that work together, do you update all notices in that module when you change a single file in that module? Since a program is one piece of code (maybe consisting of many modules), do you update all notices in that program when you change a single file in that program? Or do you just go through and change en-mass over your morning coffee on the grounds your about to start programming and updateing things?

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• C++ simple arrays and pointers question

  - by nashmaniac

  So here's the confusion, let's say I declare an array of characters char name[3] = "Sam"; and then I declare another array but this time using pointers char * name = "Sam"; What's the difference between the two? I mean they work the same way in a program. Also how does the latter store the size of the stuff that someone puts in it, in this case 3 characters? Also how is it different from char * name = new char[3]; If those three are different where should they be used I mean in what circumstances?

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• Open Source Client-Based Project Management?

  - by Chuck

  For quite some time I've been searching for a web-based, open-source project management program that I can run on my rented space at Dreamhost to track client projects. dotProject seems nice, but I've never figured out how to create projects that only certain people can access. I'm usually working on two or three projects at a time for different clients, and would like to be able to allow access for each client to their project but not others. So, first of all, can anyone point me to how to do this in dotProject, and baring that, can anyone recommend an open-source solution to this problem?

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• What does this piece of code in C++ mean? [closed]

  - by user1838418

  const double pi = 3.141592653589793; const angle rightangle = pi/2; inline angle deg2rad(angle degree) { return degree * rightangle / 90.; } angle function1() { return rightangle * ( ((double) rand()) / ((double) RAND_MAX) - .5 ); } bool setmargin(angle theta, angle phi, angle margin) { return (theta > phi-margin && theta < phi+margin); } Please help me. I'm new to C++

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• Does the windows 8 store only support windows RT?

  - by Need4Sleep

  I'm in a project for creating a game engine and eventually a game, and we need ideas on how to get our game out into the internet. I had an idea with putting it onto the windows 8 store at a low cost(or free) in order to get the word out, but does the windows 8 store only support apps programmed in windows RT? our game will be built in C++ / OpenGL / GLEW / Actionscript / GLM / etc.. , so we wont be using any windows RT functionality at all.

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• Need help with this question [closed]

  - by Jaime

  Occasionally, multiplying the sizes of nested loops can give an overestimate for the Big-Oh running time. This result happens when an innermost loop is infrequently executed. Give the Big-O analysis of the running time. Implement the following code and run for several values of N, and compare your analysis with the actual running times. for(int i = 1; i <= n; i++) for(int j = 1; j<=i * i; j++) if(j%i == 0) for(int k = 0; k < j; k++) sum++;

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• Establishing relationships with unsolicited recruiters

  - by Michael

  Several times each year, I receive unsolicited introductions from tech recruiters, usually via LinkedIn and usually local firms. I am not currently looking for a new job. Is it advisable to establish a relationship with one or more recruiters when I'm not interested in finding new work, so that they have my resume on file? Here's another way I approach the question: My plumber was first hired at the point of need: I had a plumbing problem, looked up a few of them, and evaluated and hired based on their demeanor and cost estimates. I established a relationship with a general attorney, on the other hand, well in advance of ever actually needing services so that if or when services are needed he already knows enough about me to begin work. Should I approach recruiters like I approached my plumber or my lawyer? A separate discussion, I suppose, is whether or not the type of recruiters who troll LinkedIn for clients are generally helpful or not. Edit: I have never worked with a recruiter before, and therefore have little idea what to expect.

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• Thoughts and comments on Search Neutrality?

  - by SprocketGizmo

  Following the cases brought forward by Foundem, Ciao!, and eJustice.fr what are your thoughts on Search Neutrality? Should search engines be regulated by the FCC or FTC similarly to the way the FCC is pushing to regulate Net Neutrality? Relevant Articles: Op-Ed to the New York Times from the founder of Foundem Excerpt from Book on Search/Net Neutrality Blog discussing preceding link. Site founded by Foundem to promote Search Neutrality awareness.

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• Should *'s go next to the type or the variable name? [closed]

  - by derekerdmann

  Possible Duplicate: int* i; or int *i; or int * i; When working in C or C++, how should pointers be declared? Like this: char* derp; or this: char *derp; I typically use the first method, because the variable is a character pointer, but I know that it can create confusion when declaring multiple variables at once: char* herp, derp; herp becomes a character pointer, while derp is just a character. I know it often comes down to coding style, but which one is "better?" Should I sacrifice clarity to eliminate potential confusion?

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• Are Java certifications important for an architect role?

  - by Tahir Akram

  My this question is career path related. I want to know how much Java Certifications (SCJP, SCWCD and others) are important for an architect position. If a person posses a good experience in Java development and want to pursue his career on architect level, do you guys think he need to have certification on his CV. If he has never worked on lead developer roles? If you conducting my interview for an architect position. And I have worked as a Java web developer in different teams having 5 years of exp. Never lead any. And I am having certification badges on my CV. How can a developer make his career path towards being an architect in a team?

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• How are Java ByteBuffer's limit and position variable's updated?

  - by Dummy Derp

  There are two scenarios: writing and reading Writing: Whenever I write something to the ByteBuffer by calling its put(byte[]) method the position variable is incremented as: current position + size of byte[] and limit stays at the max. If, however, I put the data in a view buffer then I will have to, manually, calculate and update the position Before I call the write(ByteBuffer) method of the channel to write something, I will have to flip() the Bytebuffer so that position points to zero and limit points to the last byte that was written to the ByteBuffer. Reading: Whenever I call the read(ByteBuffer) method of a channel to read something, the position variable stays at 0 and the limit variable of the ByteBuffer points to the last byte that was read. So, if the ByteBuffer is smaller than the file being read, the limit variable is pushed to max This means that the ByteBuffer is already flipped and I can proceed to extracting the values from the ByteBuffer. Please, correct me where I am wrong :)

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• How long can a user remember what they were working on? [migrated]

  - by GlenPeterson

  A web application lets the user browse its screens for future or past months. The time period the user is currently viewing follows the user through every screen of the system. But users can be logged in for a month or more. After a certain period of inactivity, we will prompt the user: You were viewing November 2008 when you last clicked. Want to view the current (default) time period instead? How long between user clicks should we wait to show this message? I'm guessing somewhere between 30 minutes and 3 hours most people will forget what they were doing, but I'd love to have some data, or someone's experience to base it on. Other suggestions related to this issue?

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• When should I use static variables with primitive types?

  - by Felipe Cypriano

  Recently I came across the question NSString: Why use static over literal? and in the comments arrived a new question. In Objective-C there some "special" types that are just maps to C primitives. Like the NSInteger. #if __LP64__ || (TARGET_OS_EMBEDDED && !TARGET_OS_IPHONE) || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64 typedef long NSInteger; #else typedef int NSInteger; #endif I know how to use the static keywords for objects but I don't understand the implications on C primitive types. When should I use a static NSInteger x instead of NSInteger x? What happens with the memory in both cases?

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• HTML Canvas: Should my app x, y values be global?

  - by Joe

  I have a large file of functions. Each of these functions is responsible for drawing a particular part of the application. My app has x and y parameters that I use in the setup function to move the whole app around in order to try different placements. So, naturally, I need to use these x and y values to anchor each function's component rendering so that everything moves in unison if the global x,y values ever change. My question is, is it bad practice/architecture to have these x,y values in the global namespace and having the each function directly access them like so? function renderFace() { var x = App.x; var y = App.y; // drawing here } is there a better way i'm missing?

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• Is reliance on parametrized queries the only way to protect against SQL injection?

  - by Chris Walton

  All I have seen on SQL injection attacks seems to suggest that parametrized queries, particularly ones in stored procedures, are the only way to protect against such attacks. While I was working (back in the Dark Ages) stored procedures were viewed as poor practice, mainly because they were seen as less maintainable; less testable; highly coupled; and locked a system into one vendor; (this question covers some other reasons). Although when I was working, projects were virtually unaware of the possibility of such attacks; various rules were adopted to secure the database against corruption of various sorts. These rules can be summarised as: No client/application had direct access to the database tables. All accesses to all tables were through views (and all the updates to the base tables were done through triggers). All data items had a domain specified. No data item was permitted to be nullable - this had implications that had the DBAs grinding their teeth on occasion; but was enforced. Roles and permissions were set up appropriately - for instance, a restricted role to give only views the right to change the data. So is a set of (enforced) rules such as this (though not necessarily this particular set) an appropriate alternative to parametrized queries in preventing SQL injection attacks? If not, why not? Can a database be secured against such attacks by database (only) specific measures? EDIT Emphasis of the question changed slightly, in the light of the initial responses received. Base question unchanged. EDIT2 The approach of relying on paramaterized queries seems to be only a peripheral step in defense against attacks on systems. It seems to me that more fundamental defenses are both desirable, and may render reliance on such queries not necessary, or less critical, even to defend specifically against injection attacks. The approach implicit in my question was based on "armouring" the database and I had no idea whether it was a viable option. Further research has suggested that there are such approaches. I have found the following sources that provide some pointers to this type of approach: http://database-programmer.blogspot.com http://thehelsinkideclaration.blogspot.com The principle features I have taken from these sources is: An extensive data dictionary, combined with an extensive security data dictionary Generation of triggers, queries and constraints from the data dictionary Minimize Code and maximize data While the answers I have had so far are very useful and point out difficulties arising from disregarding paramaterized queries, ultimately they do not answer my original question(s) (now emphasised in bold).

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• Can SAML use saleforce login information to log into another system inside a view?

  - by steve

  I want my sales people, whom use salesforce every day, to be able to view orders in a ecommerce system through a dashboard view in salesforce. The ecom is built and sitting on my web server but the sales reps dont like to log into too many things in one day so they are not using what I built them. I read recently that salesforce can use SAML but it was unclear as to what you can do with it. What I'd like, is to make a new dash board view that will open up the ecom inside of salesforce. The ecom uses a login system but if it is inside of saleforce would SAML automatically log into the ecom?

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• Which simple Java JPA ORM tool to use ?

  - by Guillaume

  What Java ORM library implementing JPA that match following criteria would you recommend and why ? free & open source alive (at least bug fixes and a mailing list) with good documentation simple (simpler than hibernate) I need to select a simple ORM tool that can be set up in minutes, without too much configuration and easy to understand, for setting simple CRUD DAOs. A query builder will be an interesting plus. Later I can have to move to Hibernate, that's why being JPA compliant is a must. I have found some candidates on the web, but not so much feedback, so I will gladly take your advices on the topic. ----- EDIT --------- I have been successfully testing ebean/avaje with a small test cases. Any one has a feedback on using these tools in production ?

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• OOP concept: is it possible to update the class of an instantiated object?

  - by Federico

  I am trying to write a simple program that should allow a user to save and display sets of heterogeneous, but somehow related data. For clarity sake, I will use a representative example of vehicles. The program flow is like this: The program creates a Garage object, which is basically a class that can contain a list of vehicles objects Then the users creates Vehicles objects, these Vehicles each have a property, lets say License Plate Nr. Once created, the Vehicle object get added to a list within the Garage object --Later on--, the user can specify that a given Vehicle object is in fact a Car object or a Truck object (thus giving access to some specific attributes such as Number of seats for the Car, or Cargo weight for the truck) At first sight, this might look like an OOP textbook question involving a base class and inheritance, but the problem is more subtle because at the object creation time (and until the user decides to give more info), the computer doesn't know the exact Vehicle type. Hence my question: how would you proceed to implement this program flow? Is OOP the way to go? Just to give an initial answer, here is what I've came up until now. There is only one Vehicle class and the various properties/values are handled by the main program (not the class) through a dictionary. However, I'm pretty sure that there must be a more elegant solution (I'm developing using VB.net): Public Class Garage Public GarageAdress As String Private _ListGarageVehicles As New List(Of Vehicles) Public Sub AddVehicle(Vehicle As Vehicles) _ListGarageVehicles.Add(Vehicle) End Sub End Class Public Class Vehicles Public LicensePlateNumber As String Public Enum VehicleTypes Generic = 0 Car = 1 Truck = 2 End Enum Public VehicleType As VehicleTypes Public DictVehicleProperties As New Dictionary(Of String, String) End Class NOTE that in the example above the public/private modifiers do not necessarily reflect the original code

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• Best Java Book(s) for an Experienced Developer

  - by Steven Elliott Jr

  I have been a .NET developer now for about the past 5/6 years give or take. I have never done any professional Java development and the last time I really touched it was probably back in college. I have been toying with the Scala language a little bit but nothing serious. Recently, I've been offered an opportunity to do some pretty cool work, but using Java instead of .NET. I think I can get by alright with my current skill set, meaning I already know how to program well and am familiar with languages such as C# and C++, etc. So, the syntax and all that language stuff are really not a problem. What I need is a really good reference book and a book about how to think in Java. Each language/Framework/Stack tries to address things a certain way and I'm sure Java is no different. What are some great Java books that you simply can't live without? Are there any books that talk about the most important parts of Java that must be understood before all else? As a side note, I will be doing mostly Java web development. Not really 100% on what types of stuff they are using for persistence, framework, server, etc. Thanks again for the consideration.

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• Hadoop and Object Reuse, Why?

  - by Andrew White

  In Hadoop, objects passed to reducers are reused. This is extremely surprising and hard to track down if you're not expecting it. Furthermore, the original tracker for this "feature" doesn't offer any evidence that this change actually improved performance (unless I missed it). It would speed up the system substantially if we reused the keys and values [...] but I think it is worth doing. This seems completely counter to this very popular answer. Is there some credence to the Hadoop developer's claim? Is there something "special" about Hadoop that would invalidate the notion of object creation being cheap?

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