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Connection to SQL Server Works Sometimes

An ADO.Net application is only sometimes able to connect to another server on the local network. It seems random whether a given connection attempt succeeds or fails. The connection is using a connection string in the form: ...
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How to set a Django model field's default value to a function call / callable (e.g., a date relative

... The question is misguided. When creating a model field in Django, you are not defining a function, so function default values are irrelevant: from datetime import datetime, timedelta class MyModel(models.Model): # default to 1 day from now ...
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What is the “Execute Around” idiom?

What is this "Execute Around" idiom (or similar) I've been hearing about? Why might I use it, and why might I not want to use it? ...
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What is the Windows equivalent of the diff command?

...ar to this : here . I tried using the comp command like it mentioned, but if I have two files, one with data like "abcd" and the other with data "abcde", it just says the files are of different sizes. I wanted to know where exactly they differ. In Unix, the simple diff tells me which row and co...
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Trim spaces from start and end of string

I am trying to find a way to trim spaces from the start and end of the title string. I was using this, but it doesn't seem to be working: ...
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How to delete every other line in Vim?

I would like to delete every other line from a Vim buffer, starting with the second one, i.e., lines 2, 4, 6, etc. For example, if the buffer’s contents is: ...
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Devise Secret Key was not set

I am developing a Rails 4 app using the Active Admin gem for the administration back end. Active Admin in turn uses Devise for user authentication. Now, when I try to deploy the app using capistrano on the VPS server, I get the below error: ...
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What is the recommended way to use Vim folding for Python code

I am interested in enabling code folding in Vim for Python code. I have noticed multiple ways to do so. 11 Answers ...
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Setting default permissions for newly created files and sub-directories under a directory in Linux?

I have a bunch of long-running scripts and applications that are storing output results in a directory shared amongst a few users. I would like a way to make sure that every file and directory created under this shared directory automatically had u=rwxg=rwxo=r permissions. ...
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How do you use the ? : (conditional) operator in JavaScript?

...s called the conditional operator.1 Here is an example of code that could be shortened with the conditional operator: var userType; if (userIsYoungerThan18) { userType = "Minor"; } else { userType = "Adult"; } if (userIsYoungerThan21) { serveDrink("Grape Juice"); } else { serveDrink("Wine...