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• Field name being converted in Unit Tests [rails]?

  - by yar

  I am noting this strange behavior where one of my fields -- receive_empresa_test_info -- has worked fine though it's always been referred to as receive_empresa_info. In Functional Tests, though, the real field name is receive_empresa_test_info. What is going on here? Might this be some part of the Rails environment that I'm missing during testing?

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• Invoking a function of library libfprint in Python

  - by Ivanelson

  I need help to call a function(Struct C) that detects the devices, so I'm calling the function this way: from ctypes import * fp = CDLL('./libfprint.so.0') fp.fp_discover_devs.argtypes = None fp.fp_discover_devs.restype = c_char_p ret = fp.fp_discover_devs() print ret # is "0" That is not detected any device, because the return is "0". See the documentation of the function: I'm using Ubuntu and I downloaded the "fprint_demo" and works perfectly. Did you install any package missing? Thanks.

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• Memory leaks in libxml2.2

  - by KSH

  I am using libxml2 to parse xml content in my iPhone app. The xml content is downloaded from a server similar to the Apple's own TopSongs sample app. When I check for leaks using the Instruments tool, I see memory leaks being reported on xmlNewParserCtxt, xmlNewInputStream and xmlAllocParserInputBuffer. I have called xmlFreeParserCtxt(context) at applicable places (dealloc). Am I missing something else ? Is this a known issue to contend with when using libxml2 parsers ?

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• Any way to specify the base of math.log() in javascript?

  - by Ryan

  I need a log function in my javascript but it needs to be base 10, I can't see any listing for this so I'm assuming it's not possible... any math wizards out there know of an approach for this? Or maybe I'm missing something and there is a way?

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• xdebug profiler output strange results

  - by nic28

  I'm using xdebug to profile some PHP code on Windows and using WinCacheGrind/Webgrind to analyse the output, but I'm getting some strange results. Specifically, the total cumulative time for a single method is greater than 100%! How is it possible that more time is spent executing this function's code and all the functions that it calls than the total time it took to execute the whole script? What am I missing here?

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• Repeat elements of vector in R

  - by bshor

  Hi, I'm trying to repeat the elements of vector a, b number of times. That is, a="abc" should be "aabbcc" if y = 2. Why doesn't either of the following code examples work? sapply(a, function (x) rep(x,b)) and from the plyr package, aaply(a, function (x) rep(x,b)) I know I'm missing something very obvious ...

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• No Content-Length field in the HTTP response header (google app engine)

  - by Max

  Content-Length header is missing when I try to download rar, exe, msi static files, though response for images contains Content-Length, but if I change rar extension to jpg it doesn't. How do I solve this?

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• Can you embed PHP code in the output of a CGI script?

  - by Joe Corkery

  I have a CGI based form that I am working with and I would like to be able to include some PHP code in the generated results. However, when I do this, the PHP does not appear to get processed and just ends up being displayed in the resulting web page. Is what I am doing actually possible or am I missing something? Thanks.

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• Oracle scheduler job log output

  - by JOTN

  I'm using dbms_scheduler to execute a PL/SQL stored procedure. I would like to be able to have that code create some text logging output and associate it with the run to verify it's working, but I can't find anything to do that in the docs. Is there a facility to do this that I'm missing? This is an 11g database running under Unix. It would be real nice if I could use dbms_output so I could also run it from sqlplus and get output.

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• SVN branches: Delete branch locally, but do not show up as modified

  - by Quintin Par

  I accidently went and synced up my branches folder resulting in a download of all the branches on my local harddisk (very huge in size) Now how can I delete the branches locally but not show up in the svn as modified/missing? I use tortisesvn

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• An example of when to have multiple "activities" in an Android application

  - by Benju

  I seem to be missing something obvious here, why would I want more than one activity per application in Android? Does somebody have some solid examples?

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• Error #1064 in mySQL Query

  - by William

  I get the following error in the query below: #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')))' at line 1 Code Snippet: INSERT INTO test_bans( ip, Expiration ) VALUES ( "0.0.0.0", DateAdd( "d", 1, Date( ) ) ) Table creation query CREATE TABLE test_bans ( ID smallint(6) NOT NULL AUTO_INCREMENT, IP text NOT NULL, Expiration DATETIME NOT NULL, PRIMARY KEY (ID) ) TYPE=MyISAM; What am I missing?

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• SVN Export while retaining permissions

  - by Jonathan

  Hey all- I have some files in my SVN repository that I would like to have execute permissions. When I check them into the repository with 755 permissions and run an svn export, the resulting files have 644 permissions. There doesn't appear to be an option in "svn export" to retain the permissions. Am I missing something? Thanks- Jonathan

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• How can I make python be more friendly regarding reading and writing Unicode text files?

  - by bogdan

  I found that even modern Python versions (like 3.x) are not able to detect BOM on text files. I would like to know if there is any module that could add this missing feature to Python by replacing the open() and codecs.open() functions for reading and writing text files.

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• Struct inside a class

  - by Balakrishnan

  I have a class definition of the form class X { public: //class functions private: A_type *A; //other class variables }; and struct A_type is defined as struct A_type { string s1,s2,s3; }; Inside the constructor, I allocate appropriate memory for A and try A[0].s1="somestring"; It shows segmentation fault. Is this kind of declaration invalid, or am I missing something

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• HashMap.containsValue - What's the point?

  - by Frederik

  I've got a HashMap and I need to fetch an item by its integer value. I notice there's a containsValue() function, but it would appear I still have to iterate through the map to find the correct index anyway. My question is; why use containsValue() if I'm required to traverse it afterwards? Also, am I missing the point completely? ;-)

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• How do I serve a binary file through rack?

  - by Chris

  I think I'm being a bit silly here, but I keep getting errors complaining about the SERVER_NAME key missing from the env hash, and I can't find any substantial documentation on Rack::SendFile.. so- how do I serve up files?

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• SQL Join only returning 1 row.

  - by kevin

  Not quite sure what I'm missing, but my SQL statement is only returning one row. SELECT tl.*, (tl.topic_total_rating/tl.topic_rates) as topic_rating, COUNT(pl.post_id) - 1 as reply_count, MIN(pl.post_time) AS topic_time, MAX(pl.post_time) AS topic_bump FROM topic_list tl JOIN post_list pl ON tl.topic_id=pl.post_parent WHERE tl.topic_board_link = %i AND topic_hidden != 1 ORDER BY %s I have two tables (post_list and topic_list), and post_list's post_parent links to a topic_list's topic_id. Instead of returning all the topics (where their board's topic_board_link is n), it only returns one topic.

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• _REQUIREDNAME always nil

  - by Nali4Freedom

  I'm trying to use the method for naming a lua package after the filename mentioned here, however _REQUIREDNAME is never defined. For example I have these two files samplePackage.lua: print("_REQUIREDNAME: ", _REQUIREDNAME) return nil; packageTest.lua: require "samplePackage" And when I run packageTest.lua it outputs > _REQUIREDNAME: nil I also couldn't find any mention of _REQUIREDNAME in the Lua 5.1 Refrence manual, so was this removed from the language, or am I missing something?

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• Links from Google appending index.php to my URL

  - by davykiash

  I recently put up a site and I have been doing some SEO. However I noticed that links from Google search append index.php to my links. For example a site page which clearly appears as www.example.com/index/why on search together with correct content sample when clicked on ends up in the new browser as www.example.com/index.php/why Note that on my site all links are redirected to SSL and I use the MVC stucture. Any directives that am may be missing?

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• Does Visual Studio 2010 have tooling support for IronRuby?

  - by Alex

  I am interested in the following features: Code highlighting, Intellisense, Refactorings, Code navigation (Go to Definition etc.). If this functionality is missing from Visual Studio 2010 maybe Microsoft is planning to add these features in the future or there are community project to develop IronRuby tooling add-in?

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• When To Use IEquatable And Why

  - by ChloeRadshaw

  I just dont understand this - What does IEuqtable buy you exactly?? The only reason I can see it being useful is when creating a generic type and forcing users to implement and write a good equals method. What am I missing

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• compiling Boost linked libraries (Ubuntu)

  - by Adam Greenhall

  I installed Boost via sudo apt-get install libboost-all-dev on the most recent version of Ubuntu. Now I want to compile a project that uses the Boost.Serialization library, which needs to be linked. I've tried many variants of the following, without success: gcc -I /usr/lib code.cpp -o compiled /usr/lib/libboost_serialization.a and gcc -I /usr/lib code.cpp -o compiled -l libboost_serialization The error message is: error: ‘split_member’ is not a member of ‘boost::serialization ` What am I missing?

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• Can you omit the parenthesis from attributes with no params?

  - by Joan Venge

  I noticed when I have Serializable instead of Serializable(), the code still compiles. Is there a rule for this that you can omit the parenthesis? Is it a good practice? It seems more readable to me unless I am missing something.

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• GAE: Why are subclasses instances of db.Model (parent)?

  - by bryanallott

  Given: class A: pass class B(A): pass isinstance(B(), A) will return True. BUT class MyModel(db.Model): pass isinstance(MyModel(), db.Model) returns False(surely True?). What am I missing?

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