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• IIS 7 problem which does not occur under apache

  - by cc0

  I'm hosting a little site using a JavaScript to draw a simple graph. It involves one html index file, some css and some js files. It has all been working perfectly on two different apache servers, but when I set up IIS 7 the ajax calls fail. I get no java debug errors in firefox that I can work with, or any kind of error message at all. Without going into the code itself, does anyone have a similar experience with IIS? This is the first time I'm using IIS so I'm not quite sure what to expect to have trouble with. I'd love some input on this, if I have to delve into the code itself I'll make a new thread, I just thought I'd see if this could be a typical issue. Any help is appreciated!

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• How to get balanced diagrams from graphviz?

  - by user360872

  Is there a setting in graphviz to generate balanced diagrams like this: When diagram is more complex like below - it isn't balanced like that above (4 is below **). Code to generate second diagram: graph { n1 [label="+"]; n1 -- n2; n2 [label="/"]; n2 -- n3; n3 [label="*"]; n3 -- n4; n4 [label="1"]; n3 -- n5; n5 [label="2"]; n2 -- n6; n6 [label="3"]; n1 -- n7; n7 [label="**"]; n7 -- n8; n8 [label="4"]; n7 -- n9; n9 [label="5"]; }

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• How do I get an Iterator over a vector of objects from a Template?

  - by nieldw

  I'm busy implementing a Graph ADT in C++. I have templates for the Edges and the Vertices. At each Vertex I have a vector containing pointers to the Edges that are incident to it. Now I'm trying to get an iterator over those edges. These are the lines of code: vector<Edge<edgeDecor, vertexDecor, dir>*> edges = this->incidentEdges(); vector<Edge<edgeDecor, vertexDecor, dir>*>::const_iterator i; for (i = edges.begin(); i != edges.end(); ++i) { However, the compiler won't accept the middle line. I'm pretty new to C++. Am I missing something? Why can't I declare an iterator over objects from the Edge template? The compiler isn't giving any useful feedback. Much thanks niel

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• d3 tree - parents having same children

  - by Larry Anderson

  I've been transitioning my code from JIT to D3, and working with the tree layout. I've replicated http://mbostock.github.com/d3/talk/20111018/tree.html with my tree data, but I wanted to do a little more. In my case I will need to create child nodes that merge back to form a parent at a lower level, which I realize is more of a directed graph structure, but would like the tree to accomodate (i.e. notice that common id's between child nodes should merge). So basically a tree that divides like normal on the way from parents to children, but then also has the ability to bring those children nodes together to be parents (sort of an incestual relationship or something :)). Asks something similar - How to layout a non-tree hierarchy with D3 It sounds like I might be able to use hierarchical edge bundling in conjunction with the tree hierarchy layout, but I haven't seen that done. I might be a little off with that though.

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• Unknown error when trying to get long lived access token

  - by Marius.Radvan

  I am trying to get a long lived access token for one of my pages, using this code: $page_info = $facebook->api("/page-id?fields=access_token"); $access_token = array( "client_id" => $facebook->getAppId(), "client_secret" => $facebook->getAppSecret(), "grant_type" => "fb_exchange_token", "fb_exchange_token" => $page_info["access_token"] ); $result = $facebook->api("/oauth/access_token", $access_token); echo json_encode($result); ... but I get this response: {"error_code":1,"error_msg":"An unknown error occurred"} I get the same response if I browse to https://graph.facebook.com/oauth/access_token? client_id=APP_ID& client_secret=APP_SECRET& grant_type=fb_exchange_token& fb_exchange_token=EXISTING_ACCESS_TOKEN as stated in https://developers.facebook.com/roadmap/offline-access-removal/#page_access_token

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• How to do a cost-benefit analysis for platform-level features?

  - by Callister Park

  I work on a development team that works closely with Product Managers. There is mutual agreement between the developers and Product Managers that there should be a business case behind every feature the development team builds. My question is, what is an effective way to make a business case for platform-level features that have higher up front cost but will provide long term benefits? For example, the development team would like to implement a plug-in framework. There is the higher up-front cost to implement a plug-in framework but delivering the subsequent features as plug-ins will be cheaper in the long run. This is obvious to everyone including the Product Managers. Is there a standard/simple way to express the cost-benefits? Is there a simple way to visualize it with a graph?

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• D-Link wireless router losing outbound data

  - by gsteinert

  I have a Linux box running the Apache web server behind a D-Link wireless router (nothing fancy, just standard kit that comes with Virgin Media broadband). My issue is that when requesting web pages (from within the network or via the web), the back end of the page seems to be being dropped. For example, I tried to display a text-only file, and all I could get was the first 40-70% of the file (it changed slightly with each refresh). The apache access logs show that only part of the data was being sent (~6000 bytes instead of the 12000+ bytes of the file). Removing my router from the equation fixes the issue and I can download any files no matter the size with no problems. My theory is that the uploaded packets are either being dropped or held up by the config of the router. Is there anything I can do to alleviate the problem? (Perhaps a way of reconfiguring the router to upload packets harder/better/faster/stronger or an option in apache that provides a workaround) As a last resort I will get a second NIC for my Linux box and turn it into a router, but that would mean the box will be on 24/7... not the most ideal of circumstances. Gary

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• Get a list of events owned by a facebook page

  - by Tom Wright

  Does anyone know how I can get a list of events owned (created) by a Facebook page? I seem to be able to use the "graph api" to generate a list of the events an entity is attending. I also looked at FQL, but it seems to require that the 'where' clause is an indexable field (and, naturally, the id is the only indexable field). For bonus points, we'd be able to do this without any authentication. (Though I'm resigned to the fact that I'm likely going to need at least a permanent access_token.) If anyone know how to do this I'd be eternally grateful.

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• Logging out of Facebook invalidates offline_access token

  - by Mike Pateras

  I'm getting an offline access token like this: https://graph.facebook.com/oauth/access_token?scope=offline_access&client_id=MYCLIENTID&redirect_uri=MYREDIRECTURI&client_secret=MYSECRET&code=MYCODE obviously the MYCLIENTID and stuff have been changed for the sake of this post. Anyway, as soon as the user logs out of facebook, the key seems to no longer be valid. Am I not requesting offline_access properly (there's still an "expires" value on it, should there be if it is actually getting offline access), or is that just how it works? If it's the latter, how can I get a key that will persist, regardless of if the user logs out of facebook? I'm sure this is possible, because Tweetdeck can still write to Facebook, even though I'm currently logged out.

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• What is the risk of introducing non standard image machines to a corporate environment

  - by Troy Hunt

  I’m after some feedback from those in the managed desktop or network security space on the risks of introducing machines that are not built on a standard desktop image into a large corporate environment. This particular context relates to the standard corporate image (32 bit Win XP) in a large multi-national not being suitable for a particular segment of users. In short, I’m looking at what hurdles we might come across by proposing the introduction of machines which are built and maintained by a handful of software developers and not based on the corporate desktop image (proposing 64 bit Win 7). I suspect the barriers are primarily around virus definition updates, the rollout of service packs and patches and the compatibility of existing applications with the newer OS. In terms of viruses and software updates, if machines were using common virus protection software with automated updates and using Windows Update for service packs and patches, is there still a viable risk to the corporate environment? For that matter, are large corporate environments normally vulnerable to the introduction of a machine not based on a standard image? I’m trying to get my head around how real the risk of infection and other adverse events are from machines being plugged into the network. There are multiple scenarios outside of just the example above where this might happen (i.e. a vendor plugging in a machine for internet access during a presentation). Would a large corporate network normally be sufficiently hardened against such innocuous activity? I appreciate the theory as to why policies such as standard desktop images exist, I’m just interested in the actual, practical risk and how much a network should be protected by means other than what is managed on individual PCs.

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• Plot multiple files

  - by LucaB

  Hi I'd like to make an animation that illustrates the positions of some agents I'm simulating under Linux. Basically, I have some files named file00001.dat, file00002.dat and so on. I have to generate "something" that get files in order, and output an animated gif, a dynamic graph or whatever, that simulates the moving reading data from file. I have control on the files, meaning that I can put identifiers or everything I want. How would you achieve that? What programs would you use?

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• Delay the display of image loaded using jquery + ajax

  - by niczoom

  I am using the following code : $.ajax({ url: "pgiproxy.php", data: ({ data : $("#formdata").serialize(), mode : "graph"}), success: function(result){ var temp = $('<div/>').html(result); var val = temp.find('center').html(); $('#BFX').html(val); }, error: function(){ $("#error").html("ERROR !!!"); } }); The 'result' from the ajax call to 'pgiproxy.php' is a whole web page (returned as a string), this is then converted to a jQuery object and stored in 'var'. I then extract the data I need (a .gif image) using .find() which is stored in 'val'. This image is then inserted into a #BFX div for display. My problem is every successive time I click my button to update this image it shows the image loading from top to bottom as it is reading it in from the web. Is there a way to only display this image once it has fully loaded so the user doesnt see the image loading and only sees the image change instantly.

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• infix formula in the input

  - by gcc

  input: sqrt(2 - sin(3*A/B)^2.5) + 0.5*(C*~(D) + 3.11 +B) a b /*there are values for a,b,c,d */ c d input : sqrt(2 - asin(3*A/B)^2.5) +cos(0.5*(C*~(D)) + 3.11 +B) a b /*there are values for a,b,c,d */ c d input: sqrt(2 - sin(3*A/B)^2.5)/(0.5*(C*~(D)) + sin(3.11) +ln(B)) /*max lenght of formula is 250 characters*/ a b /*there are values for a,b,c,d */ c /*each variable with set of floating numbers*/ d As you can see infix formula in the input depends on user. My program will take a formula and n-tuples value. Then it calculate the results for each value of a,b,c and d. If you wonder I am saying ;outcome of program is graph. I dont know way how to store the formula so that I can do my job with easy. can you show me? a,b,c,d is letters cos,sin,sqrt,ln is function

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• Get list of running processes, get active process (and it's application) Flex/AIR

  - by Adam Kiss

  Hello, just a quickie (or maybe not:] ): Is it possible to get somehow list of running applications/processes and, while running in background, check which process is active? Additionally - if somehow, the answer was yes, is it possible to react for change of active window / application react just as if it was Event, or bind to it custom event (e.g. Event.SystemActiveAppChange)? Thank you for answers as well as pointers. EDIT: Due to probable missunderstanding, I mean local applications - on your win/mac/linux machine - I would like to (in process of learning of language) track what apps I use the most, make a little graph maybe? So, the point is: in AIR app, developed in FLEX, I would like to get/list all running applications/processes, as well as which one is active (on user's PC/Mac/Linux)

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• How to implement a C# interface in F#?

  - by Anton Andreev

  I would like to implement the following C# interface in F#: using System; using System.Collections.Generic; using System.Linq; using System.Text; using Mono.Addins; [TypeExtensionPoint] public interface ISparqlCommand { string Name { get; } object Run(Dictionary<string, string> NamespacesDictionary, org.openrdf.repository.Repository repository, params object[] argsRest); } This is what I have tried, but it gives me: "Incomplete structured construct at or before this point in expression" #light module Module1 open System open System.Collections.Generic; type MyClass() = interface ISparqlCommand with member this.Name = "Finding the path between two tops in the Graph" member this.Run(NamespacesDictionary, repository, argsRest) = new System.Object What am I doing wrong? Maybe indentation is wrong?

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• Change function into dependencyproperty

  - by Jaya Willianto

  Hi everyone.. I am new to XAML and WPF and I am learning about DependencyProperty and Path. For example, I have a function like this public byte[] DownloadPicture() { WebClient webClient = new WebClient(); byte[] data; data = webClient.DownloadData("https://graph.facebook.com/4/picture&type=large"); return data; } and I have dependencyproperty like this public static DependencyProperty DownloadPicProperty = DependencyProperty.Register("DownloadPic", typeof(byte), typeof(ImageControl), new PropertyMetadata(false)); How can I connect the DependencyProperty with the DownloadPicture function I wrote? Any suggestions? What should I write in the CLR wrapper?

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• How does R treat positional arguments

  - by inspectorG4dget

  I'm a python guy and very new to R (so far, all I've done is copy-paste code and screen-shot the resulting, graph). I would now like to actually learn the language so that I can draw useful plots (right now, I am trying to plot this). In attempting my first plot, I came across this function call: sets_options("universe", seq(from = 0, to = 25, by = 0.1)) Now, I would like to know if I can achieve the same result by calling sets_options("universe", seq(0, 25, 0.1)) The help page for seq doesn't speak to this specifically (or I'm not reading it correctly), so I was hoping someone could shed some light on how R handles positional arguments I tried calling the function that way in R and it worked (no syntax errors, etc), but I don't know how to test the output of that function, so I'm forced to ask here

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• Breaking change October: Status waiting when create custom audience with add user data file?

  - by THACH LN

  In my system, I create a custom audience - data file - mobile advertiser ids with 10k user. After I created it, I refreshed API link to get information about the audience which I've just created: https://graph.facebook.com/act_xxx/customaudiences?fields=id,account_id,name,lookalike_spec,retention_days,subtype,approximate_count,rule,delivery_status,operation_status,data_source,permission_for_actions&limit=500&access_token=xxx. (After breaking change in October 2014, status field not return. So I see operation_status) I see that: "operation_status": { "code": 410, "description": "No file has been uploaded for this audience, or the previous upload has failed due to system error. Please try uploading the file again." } But after about 10s, I refresh again, and operation_status change to: "operation_status": { "code": 200, "description": "Normal" } My quetions is: how to check this audience's status is waiting ( uploading file) , like when I create on facebook not my our system. Thanks for all anwser.

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• How can I document and automate a system's configuration?

  - by Diomidis Spinellis

  Having a system's configuration represented by its current state is risky, inefficient, and opaque. At some point you may be left with an unsupported system and no upgrade path. Then configuring a new system compatible with the old is a process or trial and error. Furthermore, if at some point the system is damaged the only option is to go back to the most recent full backup, and try to remember what changes followed from that point. Also, the only way to create a system compatible with the original is through a complete dump/restore. Finally, in such a setup there's no way to know how you solved a particular problem; the only thing you can do is to look at the corresponding configuration files and try to guess what you changed to achieve the desired effect. Currently for each system I maintain, I keep a log file where I record all system administration activity, starting from the installation: installation options, added packages, changes in configuration files, updates, problem fixes etc. In theory this allows me to (manually) replay all changes to arrive at the current state, or to unroll an erroneous change by executing the reverse commands. However, this process is also inefficient, error-prone, and relies on human judgment. Another thing I've tried is to put /etc configuration files under version control with git. This helps me document the changes automatically and also apply them on a clean setup. But it's not without problems: git has to run under sudo, passwords and private keys may be stored in the repository, installed packages can't be meaningfully tracked, and git will have a fit if I try to extend this approach to all the system's directories. I've also thought about performing all changes through shell scripts or makefiles, but I think this process will require a lot of effort and will be fragile. Are there some better methods or tools that I'm missing?

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• Where does Windows store MSI files for uninstallation?

  - by Nilzor

  I'm trying to figure out how Windows (XP through 7) is handling installation and uninstallation of MSI files. I have come up in situations where Windows Installer is unable to uninstall because it's missing the original MSI file, which leads me to believe that it stores a copy of all installed MSI packages somewhere. Where? I've had a couple of theories. It expectes it to reside in the same folder as it was installed from. The registry keys in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall does point to the original installation folder, and error messages when the MSI file is missing often point to this. Removing the MSI file from this folder does not hinder the uninstallation process though, so I've refused this theory. C:\Windows\Installer. This folder actually contains a bunch of seemingly randomly named MSI files. But this list is incomplete. I do find entries in the registry key mentioned in 1) which does not have an MSI copy in this folder. So how does this work? How is windows installer able to uninstall MSI-installed applications even though the MSI is not in 1) and not in 2)?

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• PyPy: What is all the buzz about?

  - by sub

  Note: The title is provocating (to make you click on it and want to close-vote the question) and I don't want to look preoccupated. Since some time now I read and heard more and more about PyPy. It's like a linear graph. Why is PyPy so special? As far as I know implementations of dynamic languages written in the languages itself aren't such a rare thing, or am I not getting something? Some even people call PyPy "the future" [of python], or see some sort of deep potential in this implementation. What exactly is the meaning of this?

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• Obtain all keys of a Neo4j index

  - by MattiSG

  I have a Neo4j database whose content is generated dynamically from a big dataset. All “entry points” nodes are indexed on a named index (IndexManager.forNodes(…)). I can therefore look up a particular “entry point” node. However, I would now like to enumerate all those specific nodes, but I can't know on which key they were indexed. Is there any way to enumerate all keys of a Neo4j Index? If not, what would be the best way to store those keys, a data type that is eminently non-graph-oriented? UPDATE (thanks for asking details :) ): the list would be more than 2 million entries. The main use case would be to never update it after an initialization step, but other use cases might need it, so it has to be somewhat scalable. Also, I would really prefer avoiding killing my current resilience abilities, so storing all keys at once, as opposed to adding them incrementally, would be a last-resort solution.

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• Force Installing a Radeon HD 2100 on Windows 8

  - by Click Ok

  I'm trying force installing a Radeon HD 2100 on Windows 8. I've found that link from AMD with the drivers for Windows7: http://support.amd.com/us/gpudownload/windows/legacy/Pages/legacy-radeonaiw-vista64.aspx I know too that AMD will stop support Radeon HD 400 and older: http://www.techspot.com/news/48321-amd-drops-windows-8-support-for-radeon-hd-4000-and-older.html Now, let's go to the problem. If I try install the 12.6 driver, Windows will stick with the "basic display adapter", and this is bad for 3d games like Minecraft, that runs really slow now compared with the previous Windows7 installation. Forcing install the catalyst driver can help to fix it. So, I follow that steps: Extract the Catalist Driver (C:\AMD\Support\12-6-legacy_vista_win7_64_dd_ccc_whql) Right click the "basic display adapter" on device manager, and "update driver" Search on PC I will choose the driver "With Disk" "C:\AMD\Support\12-6-legacy_vista_win7_64_dd_ccc_whql\Packages\Drivers\Display\W76A_INF" There is a big list of drivers and the nearest driver to HD 2100 is "Radeon HD 2350 Series" My questions: Why isn't "Radeon HD 2100 Series" listed? (or Where is it listed?) In theory it must be listed" The first link above show that "This article applies to the following configuration(s):" (...) "AMD Radeon HD 2000 Series" Am I doing something wrong?

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• How can this be done with (N)Hibernate?

  - by Vilx-

  I'm creating a windows forms application with NHibernate. It's an MDI application, so there is no limit to how many forms the user can have open at the same time (probably many). For most forms I want to have an "OK" and a "Cancel" button. Both close the form, but "OK" also saves the modified data to the DB. The forms can be pretty complex, and the modifications are likely to touch a whole graph of objects, adding some, deleting some, and changing some more. It would be good if the changes could be automatically detected and persisted as needed, without the need to manually keep track of each of them. What would be a good way to do this? Extra information: I can make whatever DB schema I want. I'm using MSSQL 2008 and currently have decided for GUID primary keys (with guid.comb generator) and a TIMESTAMP column for optimistic concurrency. I tried to simply set FlushMode of a NHibernate ISession to Never, doing all modifications as needed, and then calling Flush() if the user clicked OK. But that didn't work.

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• Finding PHP dependencies

  - by JW

  Are there any tools that can list the names of classes used by a PHP file? For example, if I ran it on this file: <? class Test { public function __construct(Obj1 $x) { $y = new Obj2(); $str = "Obj3"; $z = new $str(); } } ?> it would report "Obj1" and "Obj2". If it were really smart it might report "Obj3" as well, but that's not essential. I'm trying to package up some code, and I want some help making sure that I didn't miss any dependencies. There's something called PHP_Depend, which can graph the number of dependencies, but can't report what they are.

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