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generate model using user:references vs user_id:integer
..._id: integer, created_at: datetime, updated_at: datetime)
The second command adds a belongs_to :user relationship in your Micropost model whereas the first does not. When this relationship is specified, ActiveRecord will assume that the foreign key is kept in the user_id column and it will use a ...
How to have a transparent ImageButton: Android
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Try using null for the background ...
android:background="@null"
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How to use my view helpers in my ActionMailer views?
... this case (Rails 3.2.8): I have a method defined in ApplicationController and make it a helper by helper_method :my_helper_wannabe, but the method "my_helper_wannabe" doesn't become available in mailer.
– Giang Nguyen
Nov 7 '12 at 7:23
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How can I change a secret Gist to public?
I upload a Gist code and set it to be secret.
3 Answers
3
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stringstream, string, and char* conversion confusion
...does the string returned from stringstream.str().c_str() live in memory, and why can't it be assigned to a const char* ?
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os.walk without digging into directories below
... Does this function actually "walk" through the whole structure and then delete the entries below a certain point? Or is something more clever going on? I'm not even sure how to check this with code. --python beginner
– mathtick
Aug 19 '10 at 18:05
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How do I strip all spaces out of a string in PHP? [duplicate]
...ring = str_replace(' ', '', $string);
For all whitespace (including tabs and line ends), use preg_replace:
$string = preg_replace('/\s+/', '', $string);
(From here).
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Android Closing Activity Programmatically
...ity.finish() method (quoting) :
Call this when your activity is done
and should be closed.
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What is the difference between Server.MapPath and HostingEnvironment.MapPath?
Is there any difference between Server.MapPath() and HostingEnvironment.MapPath() ? Does Server.MapPath() have any advantages over HostingEnvironment.MapPath() ?
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Go to beginning of line without opening new line in VI
For ages now I've used SHIFT O and SHIFT $ to move to the beginning and end of a line in vi .
10 Answers
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