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• rails helper to create a valid URI (with escape characters)

  - by iwan

  Dear experts, is there any existing rails helper to create a valid URL? Specifically, I am generating a Web URL with some parameters that having special character (for e.g space i need to convert into + , and many others special characters). http://domain.name?param1=ABC+DEF&param2=GHI Thanks.

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• Gaussian filter in Matlab

  - by md86

  Does the 'gaussian' filter in MatLab convolve the image with the Gaussian kernel? Also, how do you choose the parameters hsize (size of filter) and sigma? What do you base it on? etc

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• Testing stored procedures

  - by giri

  Hi , How to test procedures with record type parameters.I have a procedure which takes test_ap ,basic and user_name as inputs.where test_ap is of record/row type,basic record array type and user_name charater varying. I need to test the procedure in pgadmin. test_client(test_ap test_base, basic test_base_detail[], user_name character varying) Any suggestions plz.

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• Run a remote python script from ASP.Net

  - by Jaelebi

  I have a python script on a linux server that I can SSH into and I want to run the script on the linux server( and pass it parameters entered by the user) and get the output on an ASP.net webpage running on IIS. How would I be able to do that? Would it be easier if I was running a wamp server? Edit: The servers are in the same internal intranet.

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• Stored Procedure in postgresql, multiple queries w/ agreggates.

  - by fenix

  I'm trying to write a store procedure that can take some input parameters (obviously), run multiple queries against those, taking the output from those and doing calculations, and from those calculations and the original queries, outputting a formatted text string like: Number of Rows for max(Z) matching condition x and y of total rows matching x (x&y/x*100). To explain the max(Z) bit, this will be the username field, it won't matter which actual entry is picked, because the where clause will filter the results by user id, is there a saner way to do this?

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• How to download images using wget from a txt file that contains links

  - by SwanC

  I can download images using wget if I download from a website. But I have several links and I have saved them in a text file. For example: wget -r -A.jpg -np www.fragrancenet.com There are so many pictures on this website. I have saved the links for the particular pictures I want: www.fragrancenet.com/images1 www.fragrancenet.com/images2 www.fragrancenet.com/images3 The links are saved in a text file named images.txt in my computer. How can I download the links in the images.txt text file using wget?

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• call_user_function_array() and __construct

  - by John

  I'm working on a simple framework, and I'm having a slight problem. I'd like to use call_user_function_array() to pass parameters to a function. That's fine, except the function I want to pass it to is __construct. I can't create an instance of an object with cufa(), and by instantiating an object, and then using cufa to call that instance's __construct(), I run into problems with a broken class because I'm calling the constructor twice (and one time it's called wrong.)

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• How to document class attributes with NaturalDocs

  - by HWende

  Via """ Function: myfunc Parameters: a : First parameter b : First parameter """ I can document a function and it gets listed in the class summary. How can I do something similar with attributes? Since I don't declare them in python I was hoping something like """ ---------------------------------------------------------------------------- Attributes: first - First attribute of the class second - Second one """ That is not working at all...

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• question about function derivatives

  - by davit-datuashvili

  hi i have question for example i have some function int sumefunction(//parameters here let say int x){ return something let say x*x+2*x+3 or does not matter } i am interesting how find derivative of this function ?if i have int f(int x){ return sin(x); } after derivative it must return cos(x) thanks

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• Oracle export problem

  - by Abhiram

  I use exp username/password@servername owner={ownername} file=backuppath; The parameters given are correct but still not able to connect Below is the error trace: EXP-00056: ORACLE error 12545 encountered ORA-12545: Connect failed because target host or object does not exist EXP-00000: Export terminated unsuccessfully What can be the possible reasons?

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• How to take screenshot of specific window in linux using "MAGICKWAND" API ?

  - by user248674

  Please correct my syntax For taking screenshot of entire window, am using status=MagickReadImage(magick_wand,"x:"); For taking snap of a particular window I used status=MagickReadImage(magick_wand,"x:$WINDOWID"); Both are reporting syntax errors, but if I pass file names as second parameters then it is compiling without any failure. Please correct me. Thanks.........

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• Is there a way to pass params to a script in TCL that is run using eval source?

  - by Corv1nus

  I have a script that calls: eval source \{$scriptfile\} where $scriptfile is another TCL script. Is there way to pass parameters to the script? I'd like to do something like: set sampleData "ID=14678934" eval source \{$scriptfile\} $sampleData I know that this isn't allowed but, is there a way to pass data to a script that is being executed using eval source?

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• MSSQL 2012 Error 26 and remote connection

  - by Rayfloyd

  I'm trying to set up MSSQL 2012 for a school project and I need to be able to connect to it remotely as my teammates will also be working on it. I did a clean install of SQL Server 2012 Express. Knowing I can't connect remotely straight off, I tweaked the settings that needed tweaking according to the internet. What I did 1.Made sure remote connections were allowed 2.Enabled TCP/IP 3.Removed 0s from Dynamic ports and set 1433 in TCP Port 4.Enabled Named Pipes 5.Created Outbound and Inbound traffic rules in the firewall for TCP port 1433 and UDP port 1434 6.Port forwarded 1433 to my "server" and 1434 too 7.made sure I was pingable 8.SQL Server authentication is enabled 9.I have restarted my computer so that changes to the config are saved So whenever I try to connect using management studio on another computer than the server using myusername.dyndns.org\SQLEXPRESS I get error 26 I have been searching for different solutions for 3 hours with no luck.

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• Navigate through .Net Grid

  - by SH

  is there a way to navigate through gird found on this page by passing parameters in query string? http://pubrec3.hillsclerk.com/oncore/search.aspx?bd=01/01/2008&ed=12/31/2008&bt=O&lb=1000000&ub=1000000000&d=5/6/2010&pt=-1&dt=D,%20MTG&st=consideration Or any code suggestion? All example could i need in C#.

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• Which parameter to pass to glGet for getting current framebuffer in OpenGLES iPhone.

  - by Quakeboy

  I know to use glGet to get various parameters. I need to know how to get the current GL_FRAMEBUFFER_OES and get the GLuint type framebuffer id. I need to use renderToTexture. This will make one of the classes code easier when switching back to normal framebuffer.

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• What would cause linq to sql to think that a parameter is nullable?

  - by chobo2

  Hi I have a stored procedure that declares a input parameter @BatchNumber uniqueidentifier This field in the table is set to not allow nullables. When I drag in the stored procedure and it hooks everything up it says the parameter is nullable. I don't understand why. Is this normal for it to think that the parameters are nullable?

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• Specializing function template for both std::string and char*

  - by sad_man

  As the title says I want to specialize a function template for both string and char pointer, so far I did this but I can not figure out passing the string parameters by reference. #include <iostream> #include <string> template<typename T> void xxx(T param) { std::cout << "General : "<< sizeof(T) << std::endl; } template<> void xxx<char*>(char* param) { std::cout << "Char ptr: "<< strlen(param) << std::endl; } template<> void xxx<const char* >(const char* param) { std::cout << "Const Char ptr : "<< strlen(param)<< std::endl; } template<> void xxx<const std::string & >(const std::string & param) { std::cout << "Const String : "<< param.size()<< std::endl; } template<> void xxx<std::string >(std::string param) { std::cout << "String : "<< param.size()<< std::endl; } int main() { xxx("word"); std::string aword("word"); xxx(aword); std::string const cword("const word"); xxx(cword); } Also template<> void xxx<const std::string & >(const std::string & param) thing just does not working. If I rearranged the opriginal template to accept parameters as T& then the char * is required to be char * & which is not good for static text in code. Please help !

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• How do I use multiple precisions in prinft()?

  - by Tommy

  Looking at the information under the heading "Precision can be omitted or be any of:". The example: printf("%.*s", 3, "abcdef"); works, outputting:abc (truncating the rest of the string.) Now, I would like to have a string with multiple parameters formatted (truncated): printf("%.*s", "%.*s", 3, 3, "abcdef", "xyz123"); but the program crashes. What is the correct syntax? Thank You.

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• iSCSI logout Input output error

  - by liuzhijun

  203 hava a iSCSI target named poolA that I am trying to log into using this command: iscsiadm -m node -T poolA -p 192.168.0.203 -l I am trying to use it as a vg. Secondly, I create two lvs on this vg, and lastly, I logout: iscsiadm -m node -T poolA -p 192.168.0.203 -u After I execute lvs, the following error occurs: /dev/dm-2: read failed after 0 of 4096 at 0: Input/output error /dev/dm-5: read failed after 0 of 4096 at 0: Input/output error Can I get around this error without a reboot? Thanks!

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• How to integrate wordpress with an existing php homepage ?

  - by user284523

  I have already a site with a single homepage index.php which accepts 2 parameters like http://mydomain.com/index.php?param1=something&param2=somethingelse param2 can be optional I want to install wordpress on the root directory, except for index.php and the above url, I want wordpress to show the blog pages. How to do that either in PHP and/or htaccess ? (I'm very bad at htaccess so I prefer php).

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• Can someone give an example of auth.getSession for facebook dev?

  - by Kartikkowligi

  I have the auth token generated. I need to get the infinite session using that. So i wanna know the parameters to be passed for auth.getSession. A simple code for the complete flow is appreciated! Thanks

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• Can I compile an iPhone app on one computer and sign it on another?

  - by keyboardsamurai

  Suppose my client doesn't want me to own his iPhone Distribution Certificate, is there a way I can send him the compiled app and let him adjust all App Id, Provisioning etc parameters, then sign and submit it? How do I do this?

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• How to create multiple arrays from 2? (actionscript, flash)

  - by Ole Jak

  so I have array like ParamsArray {a,b,a,a,...b} (so i have 2 kinds of parameters in this array - a and b) (here I have N strings) and another array - DataArray {data1,data2,...dataN} (different strings) (here I have N strings) Now I created 2 new arrays ArrayA and ArrayB and I wanta want to feel arra ArrayA with all data (strings) from DataArray which correspond (by index in array) to a param in ParamsArray. and so strings that correspond to param B should appear in ArrayB. How to do such thing in actionscript? (Please - I need a code example)

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• What is the purpose of using a reference to a reference in C++?

  - by SilverSun

  In my adventures studying the boost libraries, I've come across function signatures that have parameters which are a reference to a reference to an object. Example: void function(int && i); What is the purpose/benefit of doing it this way rather than simply taking a reference to an object? I assume there is one if it's in boost.

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• Executed Query Source

  - by Steven

  Where is the value of the actual query executed for an AccessDataSource with the parameters replaced with actual values? Note: Answers in VB.NET or C# are fine.

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