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In Postgresql, force unique on combination of two columns
... a unique identifier because it does not exclude null values.)" postgresql.org/docs/8.1/static/ddl-constraints.html#AEN2038
– ndequeker
Feb 3 '17 at 13:53
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Using Server.MapPath() inside a static field in ASP.NET MVC
I'm building an ASP.NET MVC site where I'm using Lucene.Net for search queries. I asked a question here about how to properly structure Lucene.Net usage in an ASP.NET MVC application and was told that the best method is to declare the my IndexWriter as public static , so that it can be re-used....
Copy all files with a certain extension from all subdirectories
...opy all files with a certain extension (all excel files) from all subdirectories to another directory. I have the following command:
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Issue with virtualenv - cannot activate
...y project, but when I try to activate it I cannot.
It might just be syntax or folder location, but I am stumped right now.
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Weird PHP error: 'Can't use function return value in write context'
I'm getting this error and I can't make head or tail of it.
12 Answers
12
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HTTPURLConnection Doesn't Follow Redirect from HTTP to HTTPS
...ource.) There is no way to disable this check.
Even though we know it mirrors HTTP, from the HTTP protocol point of view, HTTPS is just some other, completely different, unknown protocol. It would be unsafe to follow the redirect without user approval.
For example, suppose the application is set u...
How to get the host name of the current machine as defined in the Ansible hosts file?
...
The necessary variable is inventory_hostname.
- name: Install this only for local dev machine
pip: name=pyramid
when: inventory_hostname == "local"
It is somewhat hidden in the documentation at the bottom of this section.
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Can an abstract class have a constructor?
Can an abstract class have a constructor?
22 Answers
22
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Linux vi arrow keys broken in insert mode
My arrow keys don't work in vi in insert mode at home, they just each insert a newline and a capital letter, like 'A'. Is there a way to fix that?
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css - position div to bottom of containing div
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.outside {
width: 200px;
height: 200px;
background-color: #EEE; /*to make it visible*/
}
Needs to be
.outside {
position: relative;
width: 200px;
height: 200px;
background-color: #EEE; /*to make it visible*/
}
Absolute positioning looks for the nearest relat...