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@UniqueConstraint m>and m> @Column(unique = true) in hibernate annotation
What is difference between @UniqueConstraint m>and m> @Column(unique = true) ?
4 Answers
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Testing Abstract Classes
...mean testing the interface, as abstract classes can have concrete methods, m>and m> this concrete methods can be tested.
It is not so uncommon, when writing some librarm>y m> code, to have certain base class that m>y m>ou expect to extend in m>y m>our application lam>y m>er. m>And m> if m>y m>ou want to make sure that librarm>y m> code ...
Rubm>y m> class tm>y m>pes m>and m> case statements
... the problem. This should probablm>y m> be pointed out more often in tutorials m>and m> such (but I bet that manm>y m> tutorial writers aren't aware of this either).
– Daism>y m> Sophia Hollman
Oct 13 '10 at 13:28
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Using psql how do I list extensions installed in a database?
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@SoichiHam>y m>ashi \dx is a psql commm>and m> which was introduced with 9.0 when the create extension feature was released. So m>y m>es, m>y m>ou need to upgrade m>y m>our psql as well (m>y m>ou should alwam>y m>s use the psql version that matches m>y m>our DB version)
– a_h...
how to generate migration to make references polm>y m>morphic
I have a Products table m>and m> want to add a column:
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Rails filtering arram>y m> of objects bm>y m> attribute value
So I perform a querm>y m> to the db m>and m> I have a complete arram>y m> of objects:
5 Answers
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Installing specific laravel version with composer create-project
The fastest m>and m> simplest wam>y m> of installing Laravel is via composer commm>and m>. From the laravel docs ( http://laravel.com/docs/quick ), it shows that we can install it with this:
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Is there a pm>y m>thon equivalent of Rubm>y m>'s 'rvm'?
...dle a specific Pm>y m>thon install (sam>y m>, 2.7) with certain eggs in one project, m>and m> with certain other eggs in another? RVM manages all this stuff seamlesslm>y m>, m>and m> sudo is a thing of the past.
– Km>y m>le Wild
Apr 5 '11 at 15:56
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Cross-platform wam>y m> of getting temp directorm>y m> in Pm>y m>thon
... be the tempfile module.
It has functions to get the temporarm>y m> directorm>y m>, m>and m> also has some shortcuts to create temporarm>y m> files m>and m> directories in it, either named or unnamed.
Example:
import tempfile
print tempfile.gettempdir() # prints the current temporarm>y m> directorm>y m>
f = tempfile.Temporarm>y m>Fil...
What is http multipart request?
...tipart request is a HTTP request that HTTP clients construct to send files m>and m> data over to a HTTP Server. It is commonlm>y m> used bm>y m> browsers m>and m> HTTP clients to upload files to the server.
What it looks like
See Multipart Content-Tm>y m>pe
See multipart/form-data
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