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  • How do I construct a Django reverse/url using query args?

    - by Andrew Dalke
    I have URLs like http://example.com/depict?smiles=CO&width=200&height=200 (and with several other optional arguments) My urls.py contains: urlpatterns = patterns('', (r'^$', 'cansmi.index'), (r'^cansmi$', 'cansmi.cansmi'), url(r'^depict$', cyclops.django.depict, name="cyclops-depict"), I can go to that URL and get the 200x200 PNG that was constructed, so I know that part works. In my template from the "cansmi.cansmi" response I want to construct a URL for the named template "cyclops-depict" given some query parameters. I thought I could do {% url cyclops-depict smiles=input_smiles width=200 height=200 %} where "input_smiles" is an input to the template via a form submission. In this case it's the string "CO" and I thought it would create a URL like the one at top. This template fails with a TemplateSyntaxError: Caught an exception while rendering: Reverse for 'cyclops-depict' with arguments '()' and keyword arguments '{'smiles': u'CO', 'height': 200, 'width': 200}' not found. This is a rather common error message both here on StackOverflow and elsewhere. In every case I found, people were using them with parameters in the URL path regexp, which is not the case I have where the parameters go into the query. That means I'm doing it wrong. How do I do it right? That is, I want to construct the full URL, including path and query parameters, using something in the template. For reference, % python manage.py shell Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin Type "help", "copyright", "credits" or "license" for more information. (InteractiveConsole) >>> from django.core.urlresolvers import reverse >>> reverse("cyclops-depict", kwargs=dict()) '/depict' >>> reverse("cyclops-depict", kwargs=dict(smiles="CO")) Traceback (most recent call last): File "<console>", line 1, in <module> File "/Library/Python/2.6/site-packages/django/core/urlresolvers.py", line 356, in reverse *args, **kwargs))) File "/Library/Python/2.6/site-packages/django/core/urlresolvers.py", line 302, in reverse "arguments '%s' not found." % (lookup_view_s, args, kwargs)) NoReverseMatch: Reverse for 'cyclops-depict' with arguments '()' and keyword arguments '{'smiles': 'CO'}' not found.

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  • How can SAP tRFC server tell client through JCo that function has been carried out?

    - by Hendrik Jan van Randen
    SAPs "Transactional RFC Technical Description" document (release 4.0, see http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/ee6bca90-0201-0010-5792-d9693e2eac83?QuickLink=index&overridelayout=true ) says in section Transactional RFC on page 6: "Finally, the server tells the client, that the function has been carried out and the client acknowledges this.". How can the server tell this to the client when the server communicates with the client through JCo (Java Connector)?

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  • How do you unit test Scala in Eclipse?

    - by Jørgen Fogh
    I am learning Scala and would like to set up integrated unit testing in Eclipse. As far as I can tell from googling, ScalaTest is the way to go, possibly in combination with JUnit. What are your experiences with unit testing Scala in Eclipse? Should I use the JUnit runner or something else?

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  • Creating Read-only logs with python

    - by Travis
    I am writing a python script that needs to make a log entry whenever it's invoked. The log created by the script must not be changeable by the user (except root) who invoked the script. I tried the syslog module and while this does exactly what I want in terms of file permissions, I need to be able to put the resulting log file in an arbitrary location. How would I go about doing this?

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  • Simple question on ASM 8086

    - by Tal
    Hello ,I'm studying ASM 8086 at high school and I have this question: For example I have this number ABCD(hex), how is it stored on the memory? Does the AB go for example to memory address 01 and the CD goes to address 02? Thank you :-)

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  • ExecuteNonQuery on a stored proc causes it to be deleted

    - by FinancialRadDeveloper
    This is a strange one. I have a Dev SQL Server which has the stored proc on it, and the same stored proc when used with the same code on the UAT DB causes it to delete itself! Has anyone heard of this behaviour? SQL Code: -- Check if user is registered with the system IF OBJECT_ID('dbo.sp_is_valid_user') IS NOT NULL BEGIN DROP PROCEDURE dbo.sp_is_valid_user IF OBJECT_ID('dbo.sp_is_valid_user') IS NOT NULL PRINT '<<< FAILED DROPPING PROCEDURE dbo.sp_is_valid_user >>>' ELSE PRINT '<<< DROPPED PROCEDURE dbo.sp_is_valid_user >>>' END go create procedure dbo.sp_is_valid_user @username as varchar(20), @isvalid as int OUTPUT AS BEGIN declare @tmpuser as varchar(20) select @tmpuser = username from CPUserData where username = @username if @tmpuser = @username BEGIN select @isvalid = 1 END else BEGIN select @isvalid = 0 END END GO Usage example DECLARE @isvalid int exec dbo.sp_is_valid_user 'username', @isvalid OUTPUT SELECT valid = @isvalid The usage example work all day... when I access it via C# it deletes itself in the UAT SQL DB but not the Dev one!! C# Code: public bool IsValidUser(string sUsername, ref string sErrMsg) { string sDBConn = ConfigurationSettings.AppSettings["StoredProcDBConnection"]; SqlCommand sqlcmd = new SqlCommand(); SqlDataAdapter sqlAdapter = new SqlDataAdapter(); try { SqlConnection conn = new SqlConnection(sDBConn); sqlcmd.Connection = conn; conn.Open(); sqlcmd.CommandType = CommandType.StoredProcedure; sqlcmd.CommandText = "sp_is_valid_user"; // params to pass in sqlcmd.Parameters.AddWithValue("@username", sUsername); // param for checking success passed back out sqlcmd.Parameters.Add("@isvalid", SqlDbType.Int); sqlcmd.Parameters["@isvalid"].Direction = ParameterDirection.Output; sqlcmd.ExecuteNonQuery(); int nIsValid = (int)sqlcmd.Parameters["@isvalid"].Value; if (nIsValid == 1) { conn.Close(); sErrMsg = "User Valid"; return true; } else { conn.Close(); sErrMsg = "Username : " + sUsername + " not found."; return false; } } catch (Exception e) { sErrMsg = "Error :" + e.Source + " msg: " + e.Message; return false; } }

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  • FTP files in Windows Scripting Host?

    - by adib
    Hi What is the recommended way to transfer files via FTP and manage (rename, move, delete) files in an FTP server programmatically in a Windows Scripting Host script file (JavaScript/VBScript)? Preferably without requiring 3rd party ActiveX add-ons since these "extra" software will need to go through an approval process that will take a very long time, even for free (as in beer) and/or open source components. The script is going to be run in a Windows 2003 Server in data center environment. Thanks.

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  • Socket Lose Connection

    - by Dave Dixon
    I know Twisted can do this well but what about just plain socket? How'd you tell if you randomly lost your connection in socket? Like, If my internet was to go out of a second and come back on.

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  • SQL Server Indexing

    - by durilai
    I am trying to understand what is going on with CREATE INDEX internally. When I create a NONCLUSTERED index it shows as an INSERT in the execution plan as well as when I get the query test. DECLARE @sqltext VARBINARY(128) SELECT @sqltext = sql_handle FROM sys.sysprocesses s WHERE spid = 73 --73 is the process creating the index SELECT TEXT FROM sys.dm_exec_sql_text(@sqltext) GO Show: insert [dbo].[tbl] select * from [dbo].[tbl] option (maxdop 1) This is consistent in the execution plan. Any info is appreciated.

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  • Subsonic Simple Repo for high volume site

    - by kjgilla
    Simple Repo has given me a competitive edge in my consulting. I can finish projects much faster than I could in the "cmd.Parameters.Add(param)" days. As things progress on this end im getting into higher volume sites and wondering if Simple Repo is still the way to go. Im wondering what people's experiences have been putting SR into production vs. NHibernate. Any tips or tricks for using SR in production.

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  • CSharp: Testing a Generic Class

    - by Jonas Gorauskas
    More than a question, per se, this is an attempt to compare notes with other people. I wrote a generic History class that emulates the functionality of a browser's history. I am trying to wrap my head around how far to go when writing unit tests for it. I am using NUnit. Please share your testing approaches below. The full code for the History class is here (http://pastebin.com/ZGKK2V84).

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  • Vague MVC and Castle Windsor question. Sorry...

    - by Matt W
    I have inheritted some code in which the MVC Controller classes all get their constructors called by Castle....DefaultProxyFactory.Create() somewhere along the line (the call stack drops out to the , which isn't helping.) So, basically, how would I go about finding out where Castle is being told how to call the constructors of my Controllers? I am very new to Castle, Windsor and MicroKernel, etc, and not a master of ASP's MVC. Many thanks for any pointers - sorry about the vagueness, Matt.

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  • Notify user on database change? JavaScript/AJAX

    - by Andreas Carlbom
    Yo. I'm really quite new to this whole JavaScript business, not to mention AJAX, so I was thinking if you guys could help me out with a conundrum. Basically, what I want is for the user to be notified upon a change in a value of a MySQL table. How should I go about that? Should I use jQuery, or can I slap something together myself? Thankful for any and all replies.

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  • Send Email - Cocoa

    - by Kevin
    Hey, How would I be able to send emails using Cocoa? Which framework would I use, and how would I use it. This is very new to me so please go easy. Best Regards, Kevin

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  • Good practices for a robust FTP script

    - by dutch
    What are the things a script should do to ensure that files have been FTPed correctly? Following are the things I have in mind: 1) use high level scripting language like python or perl instead of shell script for a more comprehensive functionality and error handling 2) check that the file exists at the destination after FTP 3) check destination file size. This is a little bit difficult because file size will change if the source and destination are running different OS. Any tips on how to go about this?

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  • Making a COM dll to be invoked from c#, HRESULT error handling?

    - by Daniel
    I'm making a COM interface that c# will be using, however i am wondering how i am to check for errors and exception handling on the c# end as at the moment i am just returning a HRESTULT or bool for most methods. But several things can go wrong in some of these methods and returning a E_FAIL just doesn't cut it. What can i do in order to return more information? Can i make a HRESULT of my own?

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  • Does resharper make you lazy?

    - by ForeverDebugging
    I've been looking at using resharper and from the reviews I've seen, people who start using it never go back. I'm wondering if using resharper helps you pick up errors when looking at code without resharper, or does it decrease this ability becaues you get use to relying on resharper to identify problems?

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  • Autoit error within C# application

    - by Bi
    Hi I am trying to use AutoIT within a C# application in the following way: au = new AutoItX3Lib.AutoItX3Class(); . . . . au.WinMenuSelectItem("MySoftware", "", "&File", "&Open"); On compiling this I get the following error: Error 1 No overload for method 'WinMenuSelectItem' takes '4' arguments Going by the definition of WinMenuSelectItem (http://www.autoitscript.com/autoit3/docs/functions/WinMenuSelectItem.htm) I am not sure how I go about fixing this. Thanks

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  • Memory Mapped Files .NET

    - by CSharpAtl
    I have a project and it needs to access a large amount of proprietary data in ASP.NET. This was done on the Linux/PHP by loading the data in shared memory. I was wondering if trying to use Memory Mapped Files would be the way to go, or if there is a better way with better .NET support. I was thinking of using the Data Cache but not sure of all the pitfalls of size of data being saved in the Cache.

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