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  • Managing accounts on a private website for a real-life community

    - by Smudge
    Hey Pro Webmasters, I'm looking at setting-up a walled-in website for a real-life community of people, and I was wondering if anyone has any experience with managing member accounts for this kind of thing. Some conditions that must be met: This community has a set list of real-life members, each of whom would be eligible for one account on the website. We don't expect or require that they all sign-up. It is purely opt-in, but we anticipate that many of them would be interested in the services we are setting up. Some of the community members emails are known, but some of them have fallen off the grid over the years, so ideally there would be a way for them to get back in touch with us through the public-facing side of the site. (And we'd want to manually verify the identity of anyone who does so). Their names are known, and for similar projects in the past we have assigned usernames derived from their real-life names. This time, however, we are open to other approaches, such as letting them specify their own username or getting rid of usernames entirely. The specific web technology we will use (e.g. Drupal, Joomla, etc) is not really our concern right now -- I am more interested in how this can be approached in the abstract. Our database already includes the full member roster, so we can email many of them generated links to a page where they can create an account. (And internally we can require that these accounts be paired with a known member). Should we have them specify their own usernames, or are we fine letting them use their registered email address to log-in? Are there any paradigms for walled-in community portals that help address security issues if, for example, one of their email accounts is compromised? We don't anticipate attempted break-ins being much of a threat, because nothing about this community is high-profile, but we do want to address security concerns. In addition, we want to make the sign-up process as painless for the members as possible, especially given the fact that we can't just make sign-ups open to anyone. I'm interested to hear your thoughts and suggestions! Thanks!

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  • Beginner C# image loading woes - NullReferenceException

    - by Seth Taddiken
    I keep getting a "NullReferenceExeption was unhandled" with "Object reference not set to an instance of an object." written under it. I have all of the images (png) correct with names and added to references. protected override void LoadContent() { spriteBatch = new SpriteBatch(GraphicsDevice); backGround = Content.Load<Texture2D>("Cracked"); player1.playerBlock = Content.Load<Texture2D>("square"); player2.playerBlock = Content.Load<Texture2D>("square2"); }

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  • Why enumerator structs are a really bad idea (redux)

    - by Simon Cooper
    My previous blog post went into some detail as to why calling MoveNext on a BCL generic collection enumerator didn't quite do what you thought it would. This post covers the Reset method. To recap, here's the simple wrapper around a linked list enumerator struct from my previous post (minus the readonly on the enumerator variable): sealed class EnumeratorWrapper : IEnumerator<int> { private LinkedList<int>.Enumerator m_Enumerator; public EnumeratorWrapper(LinkedList<int> linkedList) { m_Enumerator = linkedList.GetEnumerator(); } public int Current { get { return m_Enumerator.Current; } } object System.Collections.IEnumerator.Current { get { return Current; } } public bool MoveNext() { return m_Enumerator.MoveNext(); } public void Reset() { ((System.Collections.IEnumerator)m_Enumerator).Reset(); } public void Dispose() { m_Enumerator.Dispose(); } } If you have a look at the Reset method, you'll notice I'm having to cast to IEnumerator to be able to call Reset on m_Enumerator. This is because the implementation of LinkedList<int>.Enumerator.Reset, and indeed of all the other Reset methods on the BCL generic collection enumerators, is an explicit interface implementation. However, IEnumerator is a reference type. LinkedList<int>.Enumerator is a value type. That means, in order to call the reset method at all, the enumerator has to be boxed. And the IL confirms this: .method public hidebysig newslot virtual final instance void Reset() cil managed { .maxstack 8 L_0000: nop L_0001: ldarg.0 L_0002: ldfld valuetype [System]System.Collections.Generic.LinkedList`1/Enumerator<int32> EnumeratorWrapper::m_Enumerator L_0007: box [System]System.Collections.Generic.LinkedList`1/Enumerator<int32> L_000c: callvirt instance void [mscorlib]System.Collections.IEnumerator::Reset() L_0011: nop L_0012: ret } On line 0007, we're doing a box operation, which copies the enumerator to a reference object on the heap, then on line 000c calling Reset on this boxed object. So m_Enumerator in the wrapper class is not modified by the call the Reset. And this is the only way to call the Reset method on this variable (without using reflection). Therefore, the only way that the collection enumerator struct can be used safely is to store them as a boxed IEnumerator<T>, and not use them as value types at all.

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  • Game state management (Game, Menu, Titlescreen, etc)

    - by munchor
    Basically, in every single game I've made so far, I always have a variable like "current_state", which can be "game", "titlescreen", "gameoverscreen", etc. And then on my Update function I have a huge: if current_state == "game" game stuf ... else if current_state == "titlescreen" ... However, I don't feel like this is a professional/clean way of handling states. Any ideas on how to do this in a better way? Or is this the standard way?

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  • Should one comment differently in functional languages

    - by Tom Squires
    I'm just getting started with functional programming and I'm wondering the correct way to comment my code. It seems a little redundant to comment a short function as the names and signature already should tell you everything you need to know. Commenting larger functions also seems a little redundant since they are generally comprised of smaller self-descriptive functions. What is the correct way to comment a functional program? Should I use the same approach as in iterative programming?

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  • How To Spot An Online Ticket Scam

    Police have shut down 100 online ticket scam websites this month, by taking action through the organisation in charge of registering all web addresses; Icann (Internet Corporations of Assigned Names ... [Author: Chris Holgate - Computers and Internet - May 15, 2010]

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  • Can't repeatedly reload uwsgi

    - by Connorhd
    In Ubuntu 12.04 I can only reload my uwsgi app once, after this reload and force-reload fail. This appears to be because after the first reload the process names change from uwsgi to uwsgi-core, and the reload script looks for uwsgi processes with specific pids. I'm not sure if this is just a bug, and if so is there somewhere sensible for me to report it? Otherwise is there something I could be doing wrong to cause this?

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  • Math > Logic for a Logarithmic Score Meter

    - by oodavid
    I'm trying to implement a score meter whereby I specify a maximum value (say 15,000) and I can render values on it in a logarithmic manner ie: +------+---+--+-++ +------+---+--+-++ |== | |====== | +------+---+--+-++ +------+---+--+-++ 200 pts 1,000 pts +------+---+--+-++ +------+---+--+-++ |============= | |================| +------+---+--+-++ +------+---+--+-++ 5,000 pts 15,000 pts + The upper bound needs to be variable, and need to be able to convert a score to a percentage, using the above mockup as an example: score2pct(15000, 200) = 0.2 score2pct(15000, 1000) = 0.4 score2pct(15000, 5000) = 0.8 score2pct(15000, 15000) = 1 Does anyone have any pointers for me?

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  • 1.6 or 1.7: Browser side Java version for Oracle VM console

    - by katsumii
    I noticed one of the recent FAQ in OVM forum is about console.OTN Discussion Forums : Oracle VM Server for x86vnc console not running on Oracle VM 3.1.1 One of the variable for running console is Java version. I myself hit the bug below on Windows with JDK1.7 This is Windows only bug. I had success with JDK1.7 on Linux.Bug ID: 7191616 javaws.exe crashes when starting jnlp filejnlp file provided in the steps to reproduce always crashes javaws.exe in Java 7 Update 6.No problems in Update 4

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  • Finding the endpoint of a named bone in Irrlicht

    - by Boreal
    I'm making a tank game that will have multiple tanks. I want to be able to define the weapon placements using bones that I can add right inside the modelling program (Blender to be exact). All tanks will have a bone called Body and a bone called Turret, and then names like Cannon0 and PickupGun for where the shots will be fired from that are attached to the Turret bone. Is there some way to find the absolute end position of a bone that I choose by name?

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  • Week in Geek: Malware for Android has Increased 472% since July

    - by Asian Angel
    This week we learned how to safely eject your USB devices from the desktop context menu, make the Kindle Fire Silk Browser *actually* fast, “disable Windows startup programs, use DNS names on your home network, & restore a vintage keyboard”, print or save a directory listing to a file, make your computer press a key every X seconds, and more. How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS

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  • SQL Saturday #300 - Kansas City

    SQL Saturday is coming to Kansas on September 13, 2014. Our very own Steve Jones will be presenting, alongside other big names like Glenn Berry, Kathi Kellenberger, Sean and Jen McCown, Jason Strate, and many more. Register while space is available. Get alerts within 15 seconds of SQL Server issuesSQL Monitor checks performance data every 15 seconds, so you can fix issues before your users even notice them. Start monitoring with a free trial.

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  • How Important is the Domain Name?

    The domain you use for a your web site can have a huge impact in the way that humans and search engine spiders perceive it. Domain names were once so expensive that only those wanting to protect a br... [Author: John Anthony - Computers and Internet - May 28, 2010]

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  • Pointers in C vs No pointers in PHP

    - by AnnaBanana
    Both languages have the same syntax. Why does C have the weird * character that denotes pointers (which is some kind of memory address of the variable contents?), when PHP doesn't have it and you can do pretty much the same things in PHP that you can do in C, without pointers? I guess the PHP compiler handles this internally, why doesn't C do the same? Doesn't this add unneeded complexity in C? For example I don't understand them :)

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  • Why do some languages recommend using spaces rather than tabs?

    - by TK Kocheran
    Maybe I'm alone in this, but few things annoy me like people indenting using spaces rather than tabs. How is typing SpaceSpaceSpaceSpace easier and more intuitive than typing Tab? Sure, tab width is variable, but it's much more indicative of indentation space than spaces. The same thing goes for backspacing; backspace once or four times? Why do languages like Python recommend using spaces over tabs?

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  • Where to find a template or script with frame on the left side(list of articleHeadlines) and on the right side the content

    - by Gero
    I am looking for something like the following: http://www.scala-lang.org/api/current/index.html#scala.Any http://resources.arcgis.com/en/help/arcobjects-net/componenthelp/index.html#/Overview/004t00000009000000/ On the left side i want to have/create in some admintool categeries, subcategories and add names/links to the articles on the right side. So when i click on one of the articles/links, i would see the content on the right side. Is there any script or template or whatever that would allow me that?

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  • Is code like this a "train wreck" (in violation of Law of Demeter)?

    - by Michael Kjörling
    Browsing through some code I've written, I came across the following construct which got me thinking. At a first glance, it seems clean enough. Yes, in the actual code the getLocation() method has a slightly more specific name which better describes exactly which location it gets. service.setLocation(this.configuration.getLocation().toString()); In this case, service is an instance variable of a known type, declared within the method. this.configuration comes from being passed in to the class constructor, and is an instance of a class implementing a specific interface (which mandates a public getLocation() method). Hence, the return type of the expression this.configuration.getLocation() is known; specifically in this case, it is a java.net.URL, whereas service.setLocation() wants a String. Since the two types String and URL are not directly compatible, some sort of conversion is required to fit the square peg in the round hole. However, according to the Law of Demeter as cited in Clean Code, a method f in class C should only call methods on C, objects created by or passed as arguments to f, and objects held in instance variables of C. Anything beyond that (the final toString() in my particular case above, unless you consider a temporary object created as a result of the method invocation itself, in which case the whole Law seems to be moot) is disallowed. Is there a valid reasoning why a call like the above, given the constraints listed, should be discouraged or even disallowed? Or am I just being overly nitpicky? If I were to implement a method URLToString() which simply calls toString() on a URL object (such as that returned by getLocation()) passed to it as a parameter, and returns the result, I could wrap the getLocation() call in it to achieve exactly the same result; effectively, I would just move the conversion one step outward. Would that somehow make it acceptable? (It seems to me, intuitively, that it should not make any difference either way, since all that does is move things around a little. However, going by the letter of the Law of Demeter as cited, it would be acceptable, since I would then be operating directly on a parameter to a function.) Would it make any difference if this was about something slightly more exotic than calling toString() on a standard type? When answering, do keep in mind that altering the behavior or API of the type that the service variable is of is not practical. Also, for the sake of argument, let's say that altering the return type of getLocation() is also impractical.

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  • Icons can't be seen on Ubuntu 12.04 LTS's Launcher after updates

    - by Jan Tait
    After updating yesterday, (can unfortunately not remember the specific updates) the launcher could not be made to appear. Rebooting the system showed the launcher only as a black bar at the left edge of the screen without any icons in the launcher. If the mouse arrow is moved over the black launcher bar, the names of the applications next to the launcher appears. What could be done to have the icons to be visible in the launcher?

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  • wordpress is truncating and replacing category name and description in version 2.7.1 [migrated]

    - by Jayapal Chandran
    version: WordPress 2.7.1 I recently created a new category in a blog by wordpress. I created a long category name like win32 api programming and the description as windows api programming and win23api programming. But after saving it the name and the description changes to name: win32 api instead of win32 api programming and desc: Win32 api snippets I don't want to upgrade my wordpress because i dont like some new features in the new releases. what should i do to get my actual strings(names) intact?

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  • SFML 2.0 Too Many Variables in Class Preventing Draw To Screen

    - by Josh
    This is a very strange phenomenon to me. I have a class definition for a game, but when I add another variable to the class, the draw method does not print everything to the screen. It will be easier understood showing the code and output. Code for good draw output: class board { protected: RectangleShape rect; int top, left; int i, j; int rowSelect, columnSelect; CircleShape circleArr[4][10]; CircleShape codeArr[4]; CircleShape keyArr[4][10]; //int pegPresent[4]; public: board(void); void draw(RenderWindow& Window); int mouseOver(RenderWindow& Window); void placePeg(RenderWindow& Window, int pegSelect); }; Screen: Code for missing draw: class board { protected: RectangleShape rect; int top, left; int i, j; int rowSelect, columnSelect; CircleShape circleArr[4][10]; CircleShape codeArr[4]; CircleShape keyArr[4][10]; int pegPresent[4]; public: board(void); void draw(RenderWindow& Window); int mouseOver(RenderWindow& Window); void placePeg(RenderWindow& Window, int pegSelect); }; Screen: As you can see, all I do is un-comment the protected array and most of the pegs are gone from the right hand side. I have checked and made sure that I didn't accidentally created a variable with that name already. I haven't used it anywhere. Why does it not draw the remaining pegs as it should? My only thought is that maybe I am declaring too many variables for the class, but that doesn't really make sense to me. Any thoughts and help is greatly appreciated.

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  • What do you call this { character?

    - by John Isaacks
    When talking to another programmer I would refer to ( and ) as parentheses. I would refer to [ and ] as brackets. What do you refer to { and } as? I checked the wikipedia article and there were several names listed: curly brackets squiggly brackets definite brackets swirly brackets birdie brackets Scottish brackets squirrelly brackets braces gullwings Is there a term commonly used within programmers to identify these characters?

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  • Seven Accounting Changes for 2010

    - by Theresa Hickman
    I read a very interesting article called Seven Accounting Changes That Will Affect Your 2010 Annual Report from SmartPros that nicely summarized how 2010 annual financial statements will be impacted.  Here’s a Reader’s Digest version of the changes: 1.  Changes to revenue recognition if you sell bundled products with multiple deliverables: Old Rule: You needed to objectively establish the “fair value” of each bundled item. So if you sold a dishwasher plus installation and could not establish the fair value of the installation, you might have to delay recognizing revenue of the dishwasher days or weeks later until it was installed. New Rule (ASU 2009-13): “Objective” proof of each service or good is no longer required; you can simply estimate the selling price of the installation and warranty. So the dishwasher vendor can recognize the dishwasher revenue immediately at the point of sale without waiting a few weeks for the installation. Then they can recognize the estimated value of the installation after it is complete. 2.  Changes to revenue recognition for devices with embedded software: Old Rule: Hardware devices with embedded software, such as the iPhone, had to follow stringent software revrec rules. This forced Apple to recognize iPhone revenues over two years, the period of time that software updates were provided. New Rule (ASU 2009-14): Software revrec rules no longer apply to these devices with embedded software; these devices can now follow ASU 2009-13. This allows vendors, such as Apple, to recognize revenue sooner. 3.  Fair value disclosures: Companies (both public and private) now need to spend extra time gathering, summarizing, and disclosing information about items measured at fair value, such as significant transfers in and out of Level 1(quoted market price), Level 2 (valuation based on observable markets), and Level 3 (valuations based on internal information). 4.  Consolidation of variable interest entities (a.k.a special purpose entities): Consolidation rules for variable interest entities now require a qualitative, not quantitative, analysis to determine the primary beneficiary. Instead of simply looking at the percentage of voting interests, the primary beneficiary could have less than the majority interests as long as it has the power to direct the activities and absorb any losses.  5.  XBRL: Starting in June 2011, all U.S. public companies are required to file financial statements to the SEC using XBRL. Note: Oracle supports XBRL reporting. 6.  Non-GAAP financial disclosures: Companies that report non-GAAP measures of performance, such as EBITDA in SEC filings, have more flexibility.  The new interpretations can be found here: http://www.sec.gov/divisions/corpfin/guidance/nongaapinterp.htm.  7.  Loss contingencies disclosures: Companies should expect additional scrutiny of their loss disclosures, such as those from litigation losses, in their annual financial statements. The SEC wants more disclosures about loss contingencies sooner instead of after the cases are settled.

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  • PowerPivot: Putting two stocks on the same PivotChart

    - by AlbertoFerrari
    In a previous post , I have used a stock exchange scenario to speak about how to compute moving averages in a complex scenario. Playing with the same scenario, I felt the need to compare two stocks on the same chart, choosing the stock names with a slicer. As always, a picture is worth a thousand words, the final result I want to achieve is something like this, where I am comparing Microsoft over Apple during the last 10 years. It is clear that I am not going to comment in any way why traders seem...(read more)

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  • Use Google Apps mail with website on a separate web host

    - by Oxwivi
    We've bought a domain through the free Google Apps service and use the Gmail account provided. I'm thinking of hosting our own site on a separate web host, but emails sent to our domain might be directed to our web host. Is there a way to continue using Gmail while the domain points to the web host? I've never dealt with domain names and web hosts before, nor am I experienced with web development (will use a CMS).

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  • Car brands and models licensing

    - by Ju-v
    We are small team which working on car racing game but we don't know about licensing process for branded cars like Nissan, Lamborghini, Chevrolet and etc. Do we need to buy any licence for using real car brand names, models, logos,... or we can use them for free? Second option we think about using not real brand with real models is it possible? If someone have experience with that, fell free to share it. Any information about that is welcome.

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