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How does Rails keep track of which migrations have run for a database?
...row from schema_migrations.
For example, running a migration file named 20120620193144_create_users.rb will insert a new row with a version of 20120620193144 into the schema_migrations table.
You are free at any point to introduce migrations with earlier versions. Rails will always run any new mig...
std::auto_ptr to std::unique_ptr
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edited Aug 11 '10 at 18:12
Klaim
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How do you use Mongoose without defining a schema?
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answered Sep 12 '12 at 13:21
Jonathan P. DiazJonathan P. Diaz
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How to use JavaScript variables in jQuery selectors?
...ng() if id is a number.
– isync
Oct 12 '15 at 17:41
IE 11 doesn't like this, $('#' + id).hide();, it says it's undefin...
What is the “__v” field in Mongoose
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312
From here:
The versionKey is a property set on each document when first created
by Mongoo...
How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
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edited Feb 14 '18 at 12:06
Andreas Rejbrand
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Java: What is the difference between and ?
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edited Sep 5 '12 at 18:39
jyoungdev
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JavaScript hard refresh of current page
... ctrl F5
– ozimax06
Oct 8 '19 at 14:12
2
I think this functionality is removed in HTML5.
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Returning first x items from array
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edited May 22 '13 at 12:56
answered Oct 15 '09 at 10:10
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How to branch with TortoiseHG
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Chad BirchChad Birch
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