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• activerecord search conditions - looking for null or false

  - by Daniel

  When doing a search in active record I'm looking for record's that do not have an archived bit set to true. Some of the archived bits are null (which are not archived) others have archived set to false. Obviously, Project.all(:conditions => {:archived => false}) misses the projects with the archived bits with null values. How can all non-archived projects be selected wtih active record?

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• Date Difference, Excluding certain Times and Dates

  - by Josefvz

  Hi Folks. I'm looking for a way to determine the difference between two dates. A normal SQL DATEDIFF statement won't cut it because I need to excluded non working Hours and days Namely Weekends and any time between 16:00 - 7:00. Something similar to the NETWORKDAYS function in excel. I'm codeing an excel spreadsheet. Using VBA connect to a SQL server to pull data.

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• Javascript: Static member variable containing object instances

  - by tom

  I have the following: function Preferences() { } Preferences.players = { 'player1': new Player() } players is a static member variable of Preferences and I'm trying to make it an object containing an instance of a Player. However, it doesn't appear to let me do this. It seems like it will allow me to define players if I make it a non-static member variable however. Like so: function Preferences() { var players = { 'player1' : new Player() } } Is it possible to create a static member variable containing instances of an object in JS?

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• Check in Javascript if a SSL Certificate is valid

  - by MB

  Hi. Is there a way to check in Javascript if given a host it's SSL certificate is valid? (non blocking) In my case I want to display: "you can also use https://.." if via javascript I can make a request to https://my_url without being asked to accept an untrusted certificate. Can this be done asynchonously? -- M.

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• No less than 14 sync apps, all very similar, all v1.0, GPL, hosted on google code, written in c#

  - by goorj

  What is going on? Is this a result of a programming class assignment or someting? Find the list at Wikipedia (older revision, somone removed them as non-notable) http://en.wikipedia.org/w/index.php?title=Comparison_of_File_synchronization_software&oldid=361345181

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• SQL programming interface to external storage application

  - by Gopala

  My application is a non-relational database application with a tcl interface to retrieve data. I would like to add SQL programming interface to my application. Is there any library that converts SQL/PLSQL statements to API calls? It should also support stored procedures. SQLite(Embedded) has 'virtual table' mechanism that suits my requirement but it lacks stored procedure feature. -Gopala

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• jQuery.html() removes scripts and styles

  - by mofle

  Is there a way to use jQuery.html() and not loose the scripts and styles? or any other non-jQuery way? I'm trying to output the full HTML of the page the user is on. Is this even possible?

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• When to retain a "delegate"

  - by Jose

  I know that in Objective-C you should never retain your delegates because it may cause a retain-cycle, however, how do you know the difference between a delegate and a non-delegate object ? Can't it be said that just sending a message to any object is delegating work to that object ?

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• What is the fastest XML parser in PHP?

  - by Jakub Lédl

  Hi, for a certain project, I need some way to parse XML and get data from it. So I wonder, which one of built-in parsers is the fastest? Also, it would be nice of the parser could accept a XML string as input - I have my own implementation of thread-safe working with files and I don't want some nasty non-thread-safe libraries to make my efforts useless.

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• Is ctrl-s save universal for save or are there different combinations for different languages

  - by aepheus

  I imagine that there are different combination, just looking for an affirmation. Or, are we developers really that english-centric? If I were in japan, using a word processor on some computer, would ctrl-s save? Are there keyboards where ctrl-s doesn't even exist (non-english keyboards)? Most of what I've seen usually has latin + [insert language here] characters, usually overridden on the normal qwerty keyboard.

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• .htaccess: subdomain issue

  - by Oden

  Hey, How can i redirect a subdomain call to a folder? So when the site, sub.domain.com is requested I want to redirect it to show the content of domain.com/sub/ The server is configured to add every request to the domain, but i get a 404 page everytime i do a non-defined subdomain call (witch is trivial, because theres nothing defined) So the question is: How to solve this, with .htaccess?

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• In App Purchase with Subscription Model

  - by Evangelist

  Does anyone have any idea of a service provider that provides In App Purchase with subscription model. I checked Urban Airship which has solution built around non-consumable approach and iLime is not available yet. Any pointers in the right direction would be appreciated.

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• Looking for a CSS Parser in java

  - by Richard

  Hi, I'm looking for a CSS Parser in java. In particular my requirement is, for a given node/element in an HTML document, to be able to ask/get the css styles for that element from the Parser. I know there is the W3C SAC interface and one or 2 implementations based on this - but turorials/examples appear non-existant. Any help/points in rigth direction much appreciated. Thanks

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• How to recognize external hard drive from all local drives in .NET Framework?

  - by biajee

  I've already tried System.IO.DriveType. But it only provides to me with the information of whether it's a removable drive such as floppy disc or a USB flash drive. And a USB external hard drive will be recognized as a local non-removable drive in this case. Furthermore, since there are more than one kinds of external hard drive, for example, USB and IEEE 1394. It's really hard to figure it out from ports. Any information will be appreciated.

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• Left outer join in LINQ is showing exception

  - by stackuser3

  The folloqing is the excpetion I am getting The null value cannot be assigned to a member with type System.Int32 which is a non-nullable value type. below is my LINQ Statement where QuestionId is the primary key in my table var questionViewsData = from questionViews in objDc.SC_QuestionsViews join questions in objDc.SC_Questions on questionViews.QuestionId equals questions.QuestionId into qs from questions in qs.DefaultIfEmpty() where questionViews.CreatedDate.Date == new DateTime(2010, 4,27) select new { Selected =(questions == null ?-1:questions.QuestionId), QuestioinTitle = questions.Title, VotesCount = questions.VotesCount }; Let me know how to resolve this

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• How can I disable a model field in a django form

  - by jammon

  I have a model like this: class MyModel(models.Model): REGULAR = 1 PREMIUM = 2 STATUS_CHOICES = ((REGULAR, "regular"), (PREMIUM, "premium")) name = models.CharField(max_length=30) status = models.IntegerField(choices = STATUS_CHOICES, default = REGULAR) class MyForm(forms.ModelForm): class Meta: model = models.MyModel In a view I initialize one field and try to make it non-editable: myform = MyForm(initial = {'status': requested_status}) myform.fields['status'].editable = False But the user can still change that field. What's the real way to accomplish what I'm after?

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• when to make a method static

  - by Don

  Hi, I'd like to know how people decide whether to define a method as static. I'm aware that a method can only be defined as static if it doesn't require access to instance fields. So lets say we have a method that does not access instance fields, do you always define such a method as static, or only if you need to call it statically (without a reference to an instance). Perhaps another way of asking the same question, is whether you use static or non-static as the default? Thanks, Don

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• Allocation of memory with LE routines

  - by HaWe

  At /questions/2000777/allocation-of-memory-in-variable-length-tables NealB mentioned LE routines to allocate/deallocate memory in a non-CICS COBOL program. I'd very much like to know how this is done: how the LE routine is called. (I'm familiar with the LINKAGE SECTION and with SET ADDRESS.) Since I have no access to an IBM mainframe at the moment - meaning no access to online documentation - some code snippets could enlighten me.

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• read Number from text file using CPP stream

  - by Yongwei Xing

  Hi all I have a text file like below 2 1 2 5 10 13 11 12 14 2 0 1 2 99 2 200 2 1 5 5 1 2 3 4 5 1 0 0 0 I want to read file line by line, and read the umbers from each line. I know how to use the stream to read a fixed field line, but what about the non-fixed line? Best Regards,

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• File format readable/writable by business people

  - by Zubair

  I am creating a document database which business people will be able to easily send documents to. Which file format do you think is the most understandable and easy to write by business / non-technical people? My current contenders are XML, JSON, and YAML

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• [Smarty] Looking for variables which aren't assigned.

  - by Kel

  What could happen if my template looks for variables which weren't assigned? For example: var uwfs_id = '{$tpl_uwfs_id}'; This snippet is from my javascript code. I outputted the value and it is simply empty. I know I could use isset(). But I couldn't find anything about how Smarty handles non-existing variables. So, what happens if template can't find a variable, because it wasn't assigned?

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• Return reference from class to this.

  - by Thomas

  Hi, I have the following member of class foo. foo &foo::bar() { return this; } But I am getting compiler errors. What stupid thing am I doing wrong? Compiler error (gcc): error: invalid initialization of non-const reference of type 'foo&' from a temporary of type 'foo* const'

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• C++ error message output format

  - by sub

  If I want to trigger an error in my interpreter I call this function: Error( ErrorType type, ErrorSeverity severity, const char* msg, int line ); However, with that I can only output Name error: Undefined variable in line 1 instead of Name error: Undefined variable 'someVariableName' in line 1 I'm working entirely with strings (except for the error messages as they all are constant at the moment), so sprintf won't work. What is the best way to create an efficient error function that can output a constant message combined with a string that describes which object, e.g.: a non-existing variable, triggered the error?

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• Will EAGAIN return on send for anything other than buffer full?

  - by jkg0

  If I use send() on a non-blocking tcp socket in Linux will it return EAGAIN for anything other than a send buffer full condition? I basically need to decide if I want to use the socket send buffer as the only buffer for my app or if I need my own user space buffer to feed the socket buffer.

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• XSD validation error human readable

  - by Robert

  Hi, I want to be able to validate a XML against a XSD and generate user readable errors, for example, including XSD documentation tag. I just wanted to know if C# provides this in a easy, elegant and non-painful way, otherwise I'll parse down the error and find the node within XSD.

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