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  • Zend Framework - validators are not working anymore?

    - by Pavel Dubinin
    Eariler I happily used the following code for creating form elements (inside Zend_Form descendant): //Set for options $this->setOptions(array( 'elements' => array( 'title' => array( 'type' => 'text', 'options' => array( 'required' => true, 'label' => 'Title', 'filters' => array('StringTrim'), 'validators' => array( array('StringLength', false, array('minLength'=>1, 'maxLength'=>50)), ), ) ) )); But now I've noticed that validators are not working.. I suspect this might be due to zend updates.. Does anyone face this problem?

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  • Python-McNuggets problem

    - by challarao
    Hi! I am a student of IIIT.I am new to python.This question is one of the problems in my problem set.Please Help me writing program such as in what I should do it. Show that it is possible to buy exactly 50, 51, 52, 53, 54, and 55 McNuggets, by finding solutions to the Diophantine equation. You can solve this in your head, using paper and pencil, or writing a program. However you chose to solve this problem, list the combinations of 6, 9 and 20 packs of McNuggets you need to buy in order to get each of the exact amounts. Given that it is possible to buy sets of 50, 51, 52, 53, 54 or 55 McNuggets by combinations of 6, 9 and 20 packs, show that it is possible to buy 56, 57,..., 65 McNuggets. In other words, show how, given solutions for 50-55, one can derive solutions for 56-65 6a + 9b + 20c = n

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  • What's the cleanest way to programmatically kill and restart explorer.exe?

    - by Paul Accisano
    Greetings all, I'm working on a Windows program whose installation necessitates restarting explorer.exe. I know "Reboot your computer to complete the installation" is the standard method here, but I'd like my installer to give users the option of just restarting Explorer so they can start using my program immediately. What's the best way to do that? Of course I could just find and kill the process, but that seems rather icky. Is there some trick to, say, make Explorer think the user is logging off and close cleanly? Thanks!

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  • Warning when using qsort in C

    - by controlfreak123
    I wrote my comparison function int cmp(const int * a,const int * b) { if (*a==*b) return 0; else if (*a < *b) return -1; else return 1; } and i have my declaration int cmp (const int * value1,const int * value2); and I'm calling qsort in my program like so qsort(currentCases,round,sizeof(int),cmp); when i compile it I get the following warning warning: passing argument 4 of ‘qsort’ from incompatible pointer type /usr/include/stdlib.h:710: note: expected ‘__compar_fn_t’ but argument is of type ‘int (*)(const int *, const int *)’ The program works just fine so my only concern is why it doesn't like the way im using that?

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  • Incorporating MIT/X11 licensed code into project

    - by Yktula
    I'm rewriting a small MIT-licensed program in C, and I intend to copy a segment from it (though not verbatim) that prints usage information and such things. The programs are going to behave, for the most part, the same, but the implementations are going to be much different. What is the best way to incorporate this code into my program, whether it's licensed under Apache 2, GPLv2/3, or under the MIT license? My guess is that for the first two listed I'd just add the original authors name to the NOTICE file along with relevant information and paste the license header as a comment above the derived code, and for the latter I'd just add the original author's copyright statement above my own.

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  • How can I determine if there is an open source software for a specific purpose?

    - by afsharm
    Hi, We are going to write an entire new application for a reservation system. In this system experts specify their free time in elaborated calendar and users seek them through searched and finally reserve the expert and his time. We prefer to find an open source program like this and try to evolve it instead of creating it from scratch. In this manner our time is saved and that open source program will be completer too. We are a entire .NET (ASP.NET, C#, NHibernate) company. We have same problem to find open source applications for our new projects. Any help is highly appreciated.

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  • Black background while copying image from Firefox

    - by Eduardo Mauro
    An image is copied from Firefox into the Clipboard. My program gets it from clipboard and saves as a JPEG image. For some reason the image is saved with a black background. If I open the same URL in IE and copy the image into the Clipboard, the image is saved correctly by my program. I am using Delphi 7. I also tried to copy the image from Firefox into Microsoft Paint and again the black background. Does anyone has a tip in how to handle such problem.

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  • What is a good motivating example for dataflow concurrency?

    - by Alex Miller
    I understand the basics of dataflow programming and have encountered it a bit in Clojure APIs, talks from Jonas Boner, GPars in Groovy, etc. I know it's prevalent in languages like Io (although I have not studied Io). What I am missing is a compelling reason to care about dataflow as a paradigm when building a concurrent program. Why would I use a dataflow model instead of a mutable state+threads+locks model (common in Java, C++, etc) or an actor model (common in Erlang or Scala) or something else? In particular, while I know of library support in the languages above (and Scala and Ruby), I don't know of a single program or library that is a poster child user of this model. Who is using it? Why do they find it better than the other models I mentioned?

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  • Stack Overflow Exploit in C

    - by Fernando Gonzalez
    Hey there guys, the question is actually about stack overflows in C. I have an assigment that I can not get done for the life of me, i've looked at everything in the gdb and I just cant figure it. The question is the following: int i,n; void confused() { printf("who called me"); exit(0); } void shell_call(char *c) { printf(" ***Now calling \"%s\" shell command *** \n",c); system(c); exit(0); } void victim_func() { int a[4]; printf("[8]:%x\n", &a[8]); printf("Enter n: "); scanf("%d",&n); printf("Enter %d HEX Values \n",n); for(i=0;i<n;i++) scanf("%x",&a[i]); printf("Done reading junk numbers\n"); } int main() { printf("ls=736c --- ps = 7370 --- cal = 6c6163\n"); printf("location of confused %x \n", confused); printf("location of shell_call %x \n", shell_call); victim_func(); printf("Done, thank you\n"); } Ok, so I managed to get the first question correctly, which is to arbitrarily call one of the two functions not explicitly called in the main path. By the way, this has to be done while running the program without any modifications. I did this by running the program, setting N to 7, which gets me to the Function Pointer of the victim_func frame, I write a[7] with the memory address of confused or shell_call, and it works. (I have a 64 bit machine, thats why I have to get it to 7, since the EBI pointer is 2 ints wide, instead of 1) My question is the following, how could I control which argument gets passed to the shell_code funcion? ie. how do i write a string to char* c. The whole point is executing unix commands like "ps" etc, by running only the program. I figured writing the EBI pointer with the hex representation of "ps" and setting the arg list of shell_call to that, but that didn't work. I also tried inputing argsv arguments and setting the arg list of shell_call to the arg_list of main, but didnt work either. I think the second version should work, but i believe im not setting the arg list of the new stack frame correctly ( I did it by writing a[8] to 0, since its the first part of the functin pointer, and writing a[9]=736c and a[10]=0000, but its probably not right since those are the parameters of victim_func. So how do i access the parameters of shell_call?

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  • How to burn an Audio CD programmatically in Mac OS X

    - by Adion
    All the info I can find about burning cd's is for Windows, or about full programs to burn cd's. I would however like to be able to burn an Audio CD directly from within my program. I don't mind using Cocoa or Carbon, or if there are no API's available to do this directly, using a command-line program that can use a wav/aiff file as input would be a possibility too if it can be distributed with my application. Because it will be used to burn dj mixes to cd, it would also be great if it is possible to create different tracks without a gap between them.

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  • Pattern for Accessing MySQL connection

    - by Dipan Mehta
    We have an application which is C++ trying to access MySQL database. There are several (about 5 or so) threads in the application (with Boost library for threading) and in each thread has a few objects, each of which is trying to access Database for its' own purpose. It has a simple ORM kind of model but that really is not an important factor here. There are three potential access patterns i can think of: There could be single connection object per application or thread and is shared between all (or group). The object needs to be thread safe and there will be contentions but MySQL will not be fired with too many connections. Every object could initiate connection on its own. The database needs to take care of concurrency (which i think MySQL can) and the design could be much simpler. There could be two possibilities here. a. either object keeps a persistent connection for its life OR b. object initiate connection as and when needed. To simplify the contention as in case of 1 and not to create too many sockets as in case of 2, we can have group/set based connections. So there could be there could be more than one connection (say N), each of this connection could be shared connection across M objects. Naturally, each of the pattern has different resource cost and would work under different constraints and objectives. What criteria should i use to choose the pattern of this for my own application? What are some of the advantages and disadvantages of each of these pattern over the other? Are there any other pattern which is better? PS: I have been through these questions: mysql, one connection vs multiple and MySQL with mutiple threads and processes But they don't quite answer exactly what i am trying to ask.

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  • Consistent tabs through out the application

    - by Rahul Varma
    Hi, I have created an apk which has activities. I have included tabs in my program through which the user can select the required activity. But my main problem is that i couldnt find a way to display the tabs throughout the application. For example, on clicking a tab the corresponding tab opens. But when i click on a button the activity is displayed but the tabs are not getting displayed. I have included a tabHost in the program to display the tabs for various activities...

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  • How do I get an unexpanded REG_EXPAND_SZ string from a remote registry?

    - by dalehhirt
    I am currently using RegistryKey.GetValue(string name, object defaultValue, RegistryValueOptions options) with RegistryValueOptions.DoNotExpandEnvironmentNames for the options value. However, this is only valid when run on the local machine. Digging down via Reflector, I find it expands the strings locally. Which means that irrespective of the setting, the strings come down remotely already expanded. Has anyone come across a solution to this that does not require running a process directly on the remote machine to get a REG_EXPAND_SZ value? Update: I attempted to use WMI's StdRegProv provider to gain access, but it still expands the strings before sending them back.

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  • Rails, REST Architecture and HTML 5: Cross domain requests with pre-flight requests

    - by Orion
    While working on a project to make our site HTML 5 friendly, we were eager to embrace the new method for Cross Domain requests (no more posting through hidden iframes!!!). Using the Access Control specification we begin setting up some tests to verify the behaviour of various browsers. The current Rails RESTful architecture relies on the four HTTP verbs: GET, POST, PUT, DELETE. However in the Access Control spec, it dictates that non-simple methods (PUT, DELETE) require a pre-flight request using the HTTP verb OPTIONS. In addition during testing we discovered that Firefox 3.5.8 pre-flight POST requests as well. My question is this. Is anyone aware of any project for the Rails framework working to address the issue? If not, any opinions about the best strategy to support the OPTIONS method, since it has to support the routes for all the POST, PUT, DELETE methods?

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  • How can I stop sorl thumbnail from breaking with very long filenames?

    - by bitbutter
    I've noticed that when working with SORL thumbnail, sometimes a user will upload an image with a very long filename, longer than the varfield in the database can hold. The name gets truncated in the database and the project gives errors whenever the image is requested. Is there a smart and safe way to have django automatically truncate long filenames in sorl uploads (prior to saving them in the database) to prevent this sort of thing? As reference, here's how the relevant model from my current project looks: class ArtistImage(models.Model): artist = models.ForeignKey(Artist) position = models.IntegerField() image = ThumbnailField( thumbnail_tag='<span class="artistimagewrapper"><img class="artistimage" src="%(src)s" width="%(width)s" height="%(height)s"></span>', upload_to='uploaded_images/artistimages', size=(900,900), quality=100, options={'crop': 'center'}, extra_thumbnails={ 'small':{ 'size':(92,92), 'quality':100, 'options':{'crop': 'center'}, } } ) class Meta: ordering = ('image',) def __unicode__(self): return (u"%s" % self.image)

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  • Problem connecting to postgres with Kohana 3 database module on OS X Snow Leopard

    - by Bart Gottschalk
    Environment: Mac OS X 10.6 Snow Leopard PHP 5.3 Kohana 3.0.4 When I try to configure and use a connection to a postgresql database on localhost I get the following error: ErrorException [ Warning ]: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///var/mysql/mysql.sock) Here is the configuration of the database in /modules/database/config/database.php (note the third instance named 'pgsqltest') return array ( 'default' => array ( 'type' => 'mysql', 'connection' => array( /** * The following options are available for MySQL: * * string hostname * string username * string password * boolean persistent * string database * * Ports and sockets may be appended to the hostname. */ 'hostname' => 'localhost', 'username' => FALSE, 'password' => FALSE, 'persistent' => FALSE, 'database' => 'kohana', ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), 'alternate' => array( 'type' => 'pdo', 'connection' => array( /** * The following options are available for PDO: * * string dsn * string username * string password * boolean persistent * string identifier */ 'dsn' => 'mysql:host=localhost;dbname=kohana', 'username' => 'root', 'password' => 'r00tdb', 'persistent' => FALSE, ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), 'pgsqltest' => array( 'type' => 'pdo', 'connection' => array( /** * The following options are available for PDO: * * string dsn * string username * string password * boolean persistent * string identifier */ 'dsn' => 'mysql:host=localhost;dbname=pgsqltest', 'username' => 'postgres', 'password' => 'dev1234', 'persistent' => FALSE, ), 'table_prefix' => '', 'charset' => 'utf8', 'caching' => FALSE, 'profiling' => TRUE, ), ); And here is the code to create the database instance, create a query and execute the query: $pgsqltest_db = Database::instance('pgsqltest'); $query = DB::query(Database::SELECT, 'SELECT * FROM test')->execute(); I'm continuing to research a solution for this error but thought I'd ask to see if someone else has already found a solution. Any ideas are welcome. One other note is that I know my build of PHP can access this postgresql db since I'm able to manage the db using phpPgAdmin. But I have yet to determine what phpPgAdmin is doing differently to connect to the db than what Kohana 3 is attempting. Bart

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  • Could you help me understand how to create a C# api by setting the scope of methods, objects, proper

    - by highone
    The answer to this SO question says that you can create an api by exposing methods, objects and .ect by setting their scope to public. http://stackoverflow.com/questions/630971/how-to-start-creating-an-application-api-in-net One of the main things I want to expose is the text of a textbox. Would the best way to do this be to create a public static Text property that is updated by the textbox's textchanged event? Also what would a developer do in order to interact with this text property? Would they add a reference to the program .exe in their program? Please help, I'm quite clueless here. Also was not sure how to word this question, feel free it edit if it is unclear.

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  • Jquery retrieve values of Dynamically created elements

    - by Amitd
    Hi, I have a html page with a form. The form has Div which gets populated dynamically with Input elements like text box,radio,checkbox etc. Now I want to retrieve the values of these dynamically created elements in the Html page,so that i can submit it to a page. //HTML PAGE <script type="text/javascript"> $(function() { populateQuestions(); }); $("#submit_btn").click(function() { // validate and process form here //HOW TO ??retrieve values??? var optionSelected = $("input#OptionSelected_1").val();// doesn't work? // alert(optionSelected); postAnswer(qid,values);//submit values showNextQuestion() ;// populate Div Questions again new values }); </script> <form action="" name="frmQuestion"> <div id="Questions" style="color: #FF0000"> </div> //Question DIV generation script example radio buttons //questionText text of question //option for question questionOptions // **sample call** var question = createQuestionElement("1","MCQ", "WHAT IS ABCD??", "Opt1$Opt2$Opt3"); question.appendTo($('#Questions')); function createQuestionElement(id, type, questionText, questionOptions) { var questionDiv = $('<div>').attr('id', 'Question'); var divTitle = $('<div>').attr('id', 'Question Title').html(questionText); divTitle.appendTo(questionDiv); var divOptions = $('<div>').attr('id', 'Question Options'); createOptions(id, "radio", questionOptions, divOptions); divOptions.appendTo(questionDiv); return questionDiv; } function createOptions(id, type, options, div) { var optionArray = options.split("$"); // Loop over each value in the array. $.each( optionArray, function(intIndex, objValue) { if (intIndex == 0) { div.append($("<input type='" + type + "' name='OptionSelected_" + id + "' checked='checked' value='" + objValue + "'>")); } else { div.append($("<input type='" + type + "' name='OptionSelected_" + id + "' value='" + objValue + "'>")); } div.append(objValue); div.append("<br/>"); }

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  • Extract item in a list if Contains returns true

    - by Matt
    I have two lists A and B, at the beginning of my program, they are both filled with information from a database (List A = List B). My program runs, List A is used and modified, List B is left alone. After a while I reload List B with new information from the database, and then do a check with that against List A. foreach (CPlayer player in ListA) if (ListB.Contains(player)) ----- Firstly, the object player is created from a class, its main identifier is player.Name. If the Name is the same, but the other variables are different, would the .Contains still return true? Class CPlayer( public CPlayer (string name) _Name = name At the ---- I need to use the item from ListB that causes the .Contains to return true, how do I do that?

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  • ODBC Proxy for remotely accessing legacy resources?

    - by Winston Fassett
    Our project uses AcuCorp's AcuODBC driver to access a legacy Vision database. The problem is that we only have a 32-bit driver and the installer simply won't run on our 64-bit servers. I need a way to use SSIS to pull data from that system. As far as I can tell, there are 3 options: Set up a whole new SQL Server instance with SSIS and the AcuODBC drivers on a 32-bit VM (costly) Try to hack the 32-bit driver onto our 64-bit server manually (failure prone and unsupported) Set up a 32-bit VM with some sort of "proxy" service that our 64-bit SSIS can use to pull the data. The first option is the least desirable. If you have any suggestions for options 2 or 3, or anything else I haven't thought of, I'd love to hear them.

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  • Python: win32console import problem

    - by David
    I want to run wexpect (the windows port of pexpect) on my Windows 7 64-bit machine. I am getting the following error: C:\Program Files (x86)\wexpect\build\libwexpect.py Traceback (most recent call last): File "C:\Program Files (x86)\wexpect\build\lib\wexpect.py", line 97, in raise ImportError(str(e) + "This package was intended for Windows like operating systems.") ImportError: No module named win32console This package requires the win32 python packages.This package was intended for Windows like operatin g systems. In the code it is failing on the following line: from win32console import * I am using Python 2.6.4. I cannot figure out how to install win32console.

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  • Endianness inside CPU registers

    - by Abhishek Tamhane
    I need help understanding endianness inside CPU registers of x86 processors. I wrote this small assembly program: section .data section .bss section .text global _start _start: nop mov eax, 0x78FF5ABC mov ebx,'WXYZ' nop ; GDB breakpoint here. mov eax, 1 mov ebx, 0 int 0x80 I ran this program in GDB with a breakpoint on line number 10 (commented in the source above). At this breakpoint, info registers shows the value of eax=0x78ff5abc and ebx=0x5a595857. Since the ASCII codes for W, X, Y, Z are 57, 58, 59, 5A respectively; and intel is little endian, 0x5a595857 seems like the correct byte order (least significant byte first). Why isn't then the output for eax register 0xbc5aff78 (least significant byte of the number 0x78ff5abc first) instead of 0x78ff5abc?

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  • mysql database that can be accessed over a vpn?

    - by user225269
    I have 2 computers. Both with w7 as os. I have installed wampserver on one of them. I have mysql database on wampserver. Then I have made a vb.net program to connect to mysql database. I have put the program on both computers. What I want to do is for those two programs to see the same database that is on one computer. For them to be able to add, delete, update that 1 database. How do I do that? How do I network the mysql database? Do I also have to install wampserver on the other computer? What do I do? Please enlighten me.

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  • How to find connected hosts at network (vpn or lan)

    - by Javier Novoa C.
    Hello, I'm looking for possible solutions to the following need: I have a VPN configured (using openVPN over Linux, BTW), and I want to know at any moment which hosts are connected to it. I recognize that it probably is the same thing as trying to know which hosts are connected to a lan, so any of the solutions might do the job... The fact is that I once used a hamachi vpn on linux and with it I had the chance to know which hosts were connected to a particular network where I belonged, so I was wondering if something similar might be possible in openVPN (or even any VPN and/or any LAN). Preferably, I'm looking for opensource/free sw solutions, or maybe the hints to program it myself (in the most simple way if possible, not that I don't know how to program, but I'm trying to achieve this in a simple manner). But anyway, if there are no os/fsw solutions, any other one might do... Thanks a lot! Javier, Mexico city

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  • Decoding subsampled bitmaps in Android

    - by hgpc
    I decode bitmaps from the SD card using BitmapFactory.decodeFile. Sometimes the bitmaps are bigger than what the application needs or that the heap allows, so I use BitmapFactory.Options.inSampleSize to request a subsampled (smaller) bitmap. The problem is that the platform does not enforce the exact value of inSampleSize, and I sometimes end up with a bitmap either too small, or still too big for the available memory. From http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html#inSampleSize: Note: the decoder will try to fulfill this request, but the resulting bitmap may have different dimensions that precisely what has been requested. Also, powers of 2 are often faster/easier for the decoder to honor. How should I decode bitmaps from the SD card to get a bitmap of the exact size I need while consuming as little memory as possible to decode it?

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