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rails 3 validation on uniqueness on <em>mem>ultiple attributes
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validates :zipcode, :uniqueness =&a<em>mem>p;gt; {:scope =&a<em>mem>p;gt; :recorded_at}
For <em>mem>ultiple attributes:
validates :zipcode, :uniqueness =&a<em>mem>p;gt; {:scope =&a<em>mem>p;gt; [:recorded_at, :so<em>mem>ething_else]}
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i<em>mem>prove...
What does git push -u <em>mem>ean?
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"Upstrea<em>mem>" would refer to the <em>mem>ain repo that other people will be pulling fro<em>mem>, e.g. your GitHub repo. The -u option auto<em>mem>atically sets that upstrea<em>mem> for you, linking your repo to a central one. That way, in the future, Git "knows" w...
How do you <em>mem>ove a co<em>mem><em>mem>it to the staging area in git?
If you want to <em>mem>ove a co<em>mem><em>mem>it to the staging area - that is unco<em>mem><em>mem>it it and <em>mem>ove all of the changes which were in it into the staging area (effectively putting the branch in the state that it would have been in prior to the co<em>mem><em>mem>it) - how do you do it? Or is it so<em>mem>ething that you can't do?
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<em>Mem>ongoDB: How to query for records where field is null or not set?
I have an E<em>mem>ail docu<em>mem>ent which has a sent_at date field:
6 Answers
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In <em>Mem>arkdown, what is the best way to link to a frag<em>mem>ent of a page, i.e. #so<em>mem>e_id?
I'<em>mem> trying to figure out how to reference another area of a page with <em>Mem>arkdown. I can get it working if I add a
5 Answers
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Where does this co<em>mem>e fro<em>mem>: -*- coding: utf-8 -*-
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This way of specifying the encoding of a Python file co<em>mem>es fro<em>mem> PEP 0263 - Defining Python Source Code Encodings.
It is also recognized by GNU E<em>mem>acs (see Python Language Reference, 2.1.4 Encoding declarations), though I don't know if it was the first progra<em>mem> to use that syntax.
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Create array of sy<em>mem>bols
Is there a cleaner way to do so<em>mem>ething like this?
3 Answers
3
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Get TransactionScope to work with async / await
I'<em>mem> trying to integrate async / await into our service bus.
I i<em>mem>ple<em>mem>ented a SingleThreadSynchronizationContext based on this exa<em>mem>ple http://blogs.<em>mem>sdn.co<em>mem>/b/pfxtea<em>mem>/archive/2012/01/20/10259049.aspx .
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Convert Enu<em>mem>eration to a Set/List
Is there so<em>mem>e one-liner bridge <em>mem>ethod to du<em>mem>p a given Enu<em>mem>eration to java.util.List or java.util.Set?
6 Answers
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How does OpenID authentication work?
I a<em>mem> a little curious to know about how OpenID authentication works.
4 Answers
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