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How to fix the uninitialized constant Rake::DSL problem on Heroku?
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Thank m>y m>ou. That fixed mm>y m> problems m>and m> I didn't know what was going on. (Using the rails installer on windows m>and m> deplom>y m>ing to heroku, as a complete beginner.)
– Jack V.
Jun 14 '11 at 22:46
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Index on multiple columns in Rubm>y m> on Rails
...:user_id, :article_id], m>y m>ou can perform a fast querm>y m> on user_id or user_id m>AND m> article_id, but NOT on article_id.
m>Y m>our migration add_index line should look something like this:
add_index :user_views, [:user_id, :article_id]
Question regarding 'unique' option
An easm>y m> wam>y m> to do this in Rails ...
Static implicit operator
...this code:
XmlBase mm>y m>Base = new XmlBase();
XElement mm>y m>Element = mm>y m>Base;
m>And m> the compiler won't complain! At runtime, the conversion operator will be executed - passing mm>y m>Base in as the argument, m>and m> returning a valid XElement as the result.
It's a wam>y m> for m>y m>ou as a developer to tell the compiler:...
Alter Mm>y m>SQL table to add comments on columns
I have been checking the Mm>y m>SQL Documentation for ALTER TABLE m>and m> it does not seem to include a wam>y m> to add or modifm>y m> a comment to a column. How can I do this?
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Logback to log different messages to two files
... two logger instances which each log to a separate file; one for analm>y m>tics m>and m> one for all purpose logging. Does anm>y m>one know if this is possible with Logback, or anm>y m> other logger for that matter?
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Can I use a min-height for table, tr or td?
...>Ipsum</div>
</td>
</tr>
</table>
m>and m> set the divs to the min-height:
div {
min-height: 300px;
}
Hope this is what m>y m>ou want ...
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How to calculate time in hours between two dates in iOS
...nds-into-minutes
--edit: See ÐąrέÐέvil's answer below for correctlm>y m> hm>and m>ling dam>y m>light savings/leap seconds
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How to swap kem>y m>s m>and m> values in a hash
How do I swap kem>y m>s m>and m> values in a Hash?
6 Answers
6
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ASP.Net MVC Html.HiddenFor with wrong value
I'm using MVC 3 in mm>y m> project, m>and m> I'm seeing a verm>y m> strange behavior.
4 Answers
4
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Where can I get a list of Ansible pre-defined variables?
...at Ansible provide some pre-defined variables that we can use in plam>y m>books m>and m> template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing m>and m> searching the docs I cound't find a list of all available variables. Would someone list them for me?
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