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• C#: What would you name an IEnumerable class?

  - by Svish

  When reading this question I started to wonder a bit. Say you have these two: class ProductCollection : ICollection<Product> class ProductList : IList<Product> What would you call one that were an IEnumerable<Product>? class Product--- : IEnumerable<Product> Before I read that other question I might have called it a ProductCollection actually, but taking the new info into account, that would have been a bit misleading since it does not implement ICollection<Product>. Could you call it Products? var products = new Products(); // products is/are products Almost works but sounds a bit strange... What would you call it?

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• [Alfresco] property qualified-name in method getContentReader

  - by Ar3s

  Hi there, I first apologize for my poor english level and maybe for the stupidity of my question ;) I am on an alfresco project to learn how it works. I have to browse programatically my content repository and gather datas all along. In order to do that I guessed I had to use a ContentReader (I get from my ContentService) but the method getReader wants a nodeRef and a propertyQualifiedName. I am ok with the nodeRef, I get what it's needed for. But the propertyQualifiedName puzzles me, I barely get what it is but I frankly don't get how it is used. Reading some alfresco forum threads I get more and more scared that I dont even get how a reader works, I somewhere saw that a reader can read only one node and only one time per instance. If anyone knows a bit about the Java API for Alfresco Content Repository use I am all hears ! Cheers all !

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• JQueryValidation - Input error class name

  - by Melursus

  Is there a way with the JQueryValidation plugin to set the input css class error. This css class is different from the label css error class. Because if I set : errorClass: "field-validation-error" That will apply for label and input. I would like input to have "input-validation-error" css class and label to have "field-validation-error" css class.

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• Numeric equivalent of an Excel column name

  - by Vivin Paliath

  The challenge The shortest code by character count that will output the numeric equivalent of an Excel column string. For example, the A column is 1, B is 2, so on and so forth. Once you hit Z, the next column becomes AA, then AB and so on. Test cases: A: 1 B: 2 AD: 30 ABC: 731 WTF: 16074 ROFL: 326676 Code count includes input/output (i.e full program).

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• Leading underscore in directory name in IIS 5.

  - by Chuck Conway

  In IIS 5 one of the directories off the root has a leading underscore. All files under the directory are unreachable (404) from the browser. I have verified that the paths are correct. Other javascript files outside the directory comedown fine. Any thoughts? Example: http://fm74g4rndmu02.corp.com/_cache/softwarecommunity/api.js

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• writing current date & time as file name using NSIS

  - by vikaskardode

  Hello Friends, I have developed customized setup Installer using NSIS. But every time when I reinstall an application, I want to take backup of old database files. & backup file should be rename as 'currentdatetime'(ex: 201003101140 means 2010-03-10 at 11:40 AM). please, Help me soon I am waiting your reply Thanks !

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• C# programatically using a string as object name when instantiating an object

  - by emk

  This is a contrived example, but lets say I have declared objects: CustomObj fooObj; CustomObj barObj; CustomObj bazObj; And I have an string array: string[] stringarray = new string[] {"foo","bar","baz"}; How can I programatically access and instantiate those objects using the string array, iterating using something like a foreach: foreach (string i in stringarray) { `i`Obj = new CustomObj(i); } Hope the idea I'm trying to get across is clear. Is this possible in C#? Thanks in advance.

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• How to parse an argument without a name with Ruby's optparse

  - by Leonid Shevtsov

  I need to parse a command line like script.rb <mandatory filename> [options] with optparse. Sure I can write some custom code to handle the filename, then pass ARGV to optparse, but maybe there's a simpler way to do it? EDIT: there's another hacky way to parse such a command line, and that is pass '--mandatory-filename ' + ARGV to optparse, then handle the --mandatory-filename option.

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• Shell script to name videos on device

  - by Jordan

  I have a .sh script that automounts any usb device that is plugged in. I need it to also find if there are videos in a certain location on the device that is plugged in then write them to a videos.txt file. Here's what I have and its not working. Also I need it to put the mountpoint in the videos.txt file. ${MOUNTPOINT}$count is the path to the mounted device. VIDEOS=ls ${MOUNTPOINT}$count/dcim/100Video | grep mp4 if [ "$VIDEOS" -ne "" ] ; then "${MOUNTPOINT}$count" > ${MOUNTPOINT}$count/videos.txt; "$VIDEOS" >> ${MOUNTPOINT}$count/videos.txt; fi What am I doing wrong?

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• BASH apache to seek particular file name

  - by justjoe

  i want to find every log file named 'justjoe_log', on an apache server. I want to delete them all. how do i do it ?

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• Castle ActiveRecord Table name conflict

  - by Shane

  When you run into a reserved word like "User" in NHibernate you would just put single quotes around the offending text and nHibernate will surround the text with square brackets for querying. My question is how do you do the same thing using Castle.ActiveRecord?

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• Process Name with inotify tool

  - by Priyanka

  Hi ALl Is there a way to find out which process is causing a particular event to occur? In the inotify-tool version 3.13, in struct_kernel , pid,uid and gid are used but it is not handled in the source code. Is there any latest patch available for the same. Please let me know.

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• Java-script object - get variable name

  - by Mikk

  Hi, To begin with, I'm not even sure, if it is the right way to do it. Let's say, i have script (jquery included) like this: foo = function() { this.bar = function() { alert('I\'m bar'); } this.test = function() { $('body').append('<a onclick="my_var.bar();">Click me</a>'); } this.test(); } var my_var = new foo(); Is there any way, i could make variable "my_var" dynamic inside function "foo". So I could do something like $('body').append('<a onclick="'+the_variable_which_im_assigned_to+'.bar();">Click me</a>'); Thank you

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• Django how to handle # in variable name.

  - by Jack

  I've got a dictionary in python which is assigned as a template variable. One of the keys is named "#text" but when i try to access it using {{ artist.image.3."#text"}} I get an error which is File "/home/jack/Desktop/test/appengine/lib/django/django/template/__init__.py", line 558, in __init__ raise TemplateSyntaxError, "Could not parse the remainder: %s" % token[upto:] TemplateSyntaxError: Could not parse the remainder: "#text" So how can I use this in the template? I've tried putting quotes around it but to no avail. I'd like to not modify the dictionary if possible, but if its easy enough to do then I guess its okay. Thanks

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• Using the slash character in Git branch name

  - by faB

  I'm pretty sure I saw somewhere in a popular Git project the branches had a pattern like "feature/xyz". However when I try to create a branch with the slash character, I get an error: $ git branch foo/bar error: unable to resolve reference refs/heads/labs/feature: Not a directory fatal: Failed to lock ref for update: Not a directory Same problem for (my initial attempt): $ git checkout -b foo/bar How does one create a branch in Git with the slash character?

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• Problem bounding name to a class in Django

  - by martinthenext

  Hello! I've got a view function that has to decide which form to use depending on some conditions. The two forms look like that: class OpenExtraForm(forms.ModelForm): class Meta: model = Extra def __init__(self, *args, **kwargs): super(OpenExtraForm, self).__init__(*args, **kwargs) self.fields['opening_challenge'].label = "lame translation" def clean_opening_challenge(self): challenge = self.cleaned_data['opening_challenge'] if challenge is None: raise forms.ValidationError('??????? ???, ??????????? ?????? ???. ???????????') return challenge class HiddenExtraForm(forms.ModelForm): class Meta: model = Extra exclude = ('opening_challenge') def __init__(self, *args, **kwargs): super(HiddenExtraForm, self).__init__(*args, **kwargs) The view code goes like that: @login_required def manage_extra(request, extra_id=None, hidden=False): if not_admin(request.user): raise Http404 if extra_id is None: # Adding a new extra extra = Extra() if hidden: FormClass = HiddenExtraForm else: FormClass = OpenExtraForm else: # Editing an extra extra = get_object_or_404(Extra, pk=extra_id) if extra.is_hidden(): FromClass = HiddenExtraForm else: FormClass = OpenExtraForm if request.POST: form = FormClass(request.POST, instance=extra) if form.is_valid(): form.save() return HttpResponseRedirect(reverse(view_extra, args=[extra.id])) else: form = FormClass(instance=extra) return render_to_response('form.html', { 'form' : form, }, context_instance=RequestContext(request) ) The problem is somehow if extra.is_hidden() returns True, the statement FromClass = HiddenExtraForm doesn't work. I mean, in all other conditions that are used in the code it works fine: the correct Form classes are intantiated and it all works. But if extra.is_hidden(), the debugger shows that the condition is passed and it goes to the next line and does nothing! As a result I get a UnboundLocalVar error which says FormClass hasn't been asssigned at all. Any ideas on what's happening?

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• how to use variable name with image tag

  - by drake

  my controller uses code like this: if params[:commit] == "Submit" this used to work fine when I just had buttons. however, now I am using images as buttons like below: <%= image_submit_tag 'butons/Add-08.png', :class => 'image-button-submit' %> How can I pass the commit variable with value Submit along with this image_submit_tag?

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• PHP / Zend Framework: Force prepend table name to column name in result array?

  - by Brian Lacy

  I am using Zend_Db_Select currently to retrieve hierarchical data from several joined tables. I need to be able to convert this easily into an array. Short of using a switch statement and listing out all the columns individually in order to sort the data, my thought was that if I could get the table names auto-prepended to the keys in the result array, that would solve my problem. So considering the following (assembled) SQL: SELECT user.*, contact.* FROM user INNER JOIN contact ON contact.user_id = user.user_id I would normally get a result array like this: [username] => 'bob', [contact_id] => 5, [user_id] => 2, [firstname] => 'bob', [lastname] => 'larsen' But instead I want this: [user.user_id] => 2, [user.username] => 'bob', [contact.contact_id] => 5, [contact.firstname] => 'bob', [contact.lastname] => 'larsen' Does anyone have an idea how to achieve this? Thanks!

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• The type or namespace name 'IgnoreDataMember' could not be found

  - by vakas

  i am facing this error while using the twitterizer api can u plz help me i have downloaded this api source code...

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• Better name for CHAR_BIT?

  - by Potatoswatter

  I was just checking an answer and realized that CHAR_BIT isn't defined by headers as I'd expect, not even by #include <bitset>, on newer GCC. Do I really have to #include <climits> just to get the "functionality" of CHAR_BIT?

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• Routine for windows recursive copy of a folder - just subfolders with a certain name

  - by MicMit

  Should be suitable for copying from UNC drive. Only subfolders named "XYZ" and their chidren are copied. Parent hierarchy is kept. Is there one line routine for doing that ? Generally speaking anything will do ( .Net , PowerShell ).

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• Can I call make runtime decided method calls in Java?

  - by Catalin Marin

  I know there is an invoke function that does the stuff, I am overall interested in the "correctness" of using such a behavior. My issue is this: I have a Service Object witch contains methods which I consider services. What I want to do is alter the behavior of those services without later intrusion. For example: class MyService { public ServiceResponse ServeMeDonuts() { do stuff... return new ServiceResponse(); } after 2 months I find out that I need to offer the same service to a new client app and I also need to do certain extra stuff like setting a flag, or make or updating certain data, or encode the response differently. What I can do is pop it up and throw down some IFs. In my opinion this is not good as it means interaction with tested code and may result in un wanted behaviour for the previous service clients. So I come and add something to my registry telling the system that the "NewClient" has a different behavior. So I'll do something like this: public interface Behavior { public void preExecute(); public void postExecute(); } public class BehaviorOfMyService implements Behavior{ String method; String clientType; public void BehaviorOfMyService(String method,String clientType) { this.method = method; this.clientType = clientType; } public void preExecute() { Method preCall = this.getClass().getMethod("pre" + this.method + this.clientType); if(preCall != null) { return preCall.invoke(); } return false; } ...same for postExecute(); public void preServeMeDonutsNewClient() { do the stuff... } } when the system will do something like this if(registrySaysThereIs different behavior set for this ServiceObject) { Class toBeCalled = Class.forName("BehaviorOf" + usedServiceObjectName); Object instance = toBeCalled.getConstructor().newInstance(method,client); instance.preExecute(); ....call the service... instance.postExecute(); .... } I am not particularly interested in correctness of code as in correctness of thinking and approach. Actually I have to do this in PHP, witch I see as a kind of Pop music of programming which I have to "sing" for commercial reasons, even though I play POP I really want to sing by the book, so putting aside my more or less inspired analogy I really want to know your opinion on this matter for it's practical necessity and technical approach. Thanks

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• What is the worst class/variable/function name you have ever encountered

  - by Chris Noe

  Naming things well is arguably Job 1 for professional programmers. Yet we have all suffered from some bad naming choices from time to time. So just to vent a little, what are some doozies that you may have run across? Just to get things started: One of our original developers wasn't sure what to call a secondary key - on what turned out to be a primary table for this app - so he called it: DL2WhateverTheHellThatIs. Unfortunately this system generates entity mappings from the XML, and attributes defined there result in classes, methods, and constants that are referenced through-out the app. To this day it is very hard to find a source file that does not reference this, er, thing! A few actual examples: DL2WhateverTheHellThatIsBean cos = (DL2WhateverTheHellThatIsBean)itr.next(); String code = getDL2WhateverTheHellThatIs().getCode(); From from = new From("DL2WhateverTheHellThatIs"); String filter = "_dL2WhateverTheHellThatIs._code"; (Very difficult to refactor)

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• URL shortening: using inode as short name?

  - by Licky Lindsay

  The site I am working on wants to generate its own shortened URLs rather than rely on a third party like tinyurl or bit.ly. Obviously I could keep a running count new URLs as they are added to the site and use that to generate the short URLs. But I am trying to avoid that if possible since it seems like a lot of work just to make this one thing work. As the things that need short URLs are all real physical files on the webserver my current solution is to use their inode numbers as those are already generated for me ready to use and guaranteed to be unique. function short_name($file) { $ino = @fileinode($file); $s = base_convert($ino, 10, 36); return $s; } This seems to work. Question is, what can I do to make the short URL even shorter? On the system where this is being used, the inodes for newly added files are in a range that makes the function above return a string 7 characters long. Can I safely throw away some (half?) of the bits of the inode? And if so, should it be the high bits or the low bits? I thought of using the crc32 of the filename, but that actually makes my short names longer than using the inode. Would something like this have any risk of collisions? I've been able to get down to single digits by picking the right value of "$referencefile". function short_name($file) { $ino = @fileinode($file); // arbitrarily selected pre-existing file, // as all newer files will have higher inodes $ino = $ino - @fileinode($referencefile); $s = base_convert($ino, 10, 36); return $s; }

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• ruby tests - error messages don't include line numbers or file name

  - by joshs

  Hi all, How do I get line numbers to be reported with my errors when testing. Here is what I get back on a typical error: josh@josh-laptop:~/d/test$ ruby unit/line_test.rb -n test_update Loaded suite unit/line_test Started E Finished in 0.066663 seconds. 1) Error: test_update(LineTest): NameError: undefined local variable or method `sdf' for #<LineTest:0xb6e61304> 1 tests, 0 assertions, 0 failures, 1 errors It is tough to debug without a line number and filename. From the code samples I've seen, people generally get back a more verbose error reports. How do I enable this? Thanks!

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