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Why am I getting this error: No mapping specified for the following EntitySet/AssociationSet - Entit
...rage table in the SSDL.
That changes when you click the Generate Database From Model context menu item. The confusing part is that this action does more than simply generating a DDL script. In fact, it changes the EDMX file to include SSDL information. From this point on, the EDMX file will enter a...
How do you detect where two line segments intersect? [closed]
...uct v × w to be vx wy − vy wx.
Suppose the two line segments run from p to p + r and from q to q + s. Then any point on the first line is representable as p + t r (for a scalar parameter t) and any point on the second line as q + u s (for a scalar parameter u).
The two line...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
... and the web regarding the keywords in my question title and learned a lot from them. Some of the questions I read are related to specific implementation challenges while others focus on general concepts. I just want to make sure I understood all of the concepts and the reasoning why technology X wa...
ssh remote host identification has changed
...
ssh-keygen -R <host>
For example,
ssh-keygen -R 192.168.3.10
From ssh-keygen man page:
-R hostname Removes all keys belonging to hostname from a known_hosts file. This option is useful to delete hashed hosts (see the -H option above).
...
Facebook Architecture [closed]
... also think about your database too. You're most likely serving up content from a database, so check out MongoDB and other types of databases that are schema-less and document-oriented. They are much much faster and better for the most "common" type of web site/app.
Look at NEW companies like Four...
PHP function to build query string from array
I'm looking for the name of the PHP function to build a query string from an array of key value pairs. Please note, I am looking for the built in PHP function to do this, not a homebrew one (that's all a google search seems to return). There is one, I just can't remember its name or find it on php...
Best way to require all files from a directory in ruby?
What's the best way to require all files from a directory in ruby ?
11 Answers
11
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Remove a file from a Git repository without deleting it from the local filesystem
...ve added *log to my .gitignore , and now I want to remove the log files from my repository.
10 Answers
...
How can I do a line break (line continuation) in Python?
...== True and \
b == False
Check the style guide for more information.
From your example line:
a = '1' + '2' + '3' + \
'4' + '5'
Or:
a = ('1' + '2' + '3' +
'4' + '5')
Note that the style guide says that using the implicit continuation with parentheses is preferred, but in this part...
When to use Amazon Cloudfront or S3
...your content. (Amazon)
The data served by CloudFront may or may not come from S3. Since it is more optimized for delivery speed, the bandwidth costs a little more.
If your user base is localized, you won't see too much difference working with S3 or CloudFront (but you have to choose the right loc...