大约有 45,791 项符合查询结果（耗时：0.0472秒） [XML]
ActiveRecord OR query
...ost.arel_table
results = Post.where(
t[:author].eq("Someone").
or(t[:title].matches("%something%"))
)
The resulting SQL:
ree-1.8.7-2010.02 > puts Post.where(t[:author].eq("Someone").or(t[:title].matches("%something%"))).to_sql
SELECT "posts".* FROM "posts" WHERE (("posts"."...
CSS fixed width in a span
Within an unordered list:
11 Answers
11
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Is there a standard naming convention for git tags? [closed]
...een a lot of projects using v1.2.3 as the naming convention for tags in git. I've also seen some use 1.2.3 . Is there an officially endorsed style, or are there any good arguments for using either?
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What is the most efficient Java Collections library? [closed]
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From inspection, it looks like Trove is just a library of collections for primitive types - it's not like it's meant to be adding a lot of functionality over the normal collections in the JDK.
Personally (and I'm biased) I love Guava (includ...
Is it possible to data-bind visible to the negation (“!”) of a boolean ViewModel property?
...'d like to use a property on my ViewModel to toggle which icon to display without creating a separate computed property of the inverse. Is this possible?
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Error: CUICatalog: Invalid asset name supplied: (null), or invalid scale factor : 2.000000
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Add symbolic breakpoint for [UIImage imageNamed:]
Add $arg3 == nil condition on Simulator, $r0 == nil condition on 32-bit iPhone, or $x2 == nil on 64-bit iPhone.
Run your application and see where debugger will stop.
P.S. Keep in mind this also happens if image name is empty string. You can ch...
Why is it OK to return a 'vector' from a function?
...ve seen this type of code several times. words is a local vector. How is it possible to return it from a function?
6 Answ...
How to move files from one git repo to another (not a clone), preserving history
Our Git repositories started out as parts of a single monster SVN repository where the individual projects each had their own tree like so:
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How do I look inside a Python object?
...and dir() are particularly useful for inspecting the type of an object and its set of attributes, respectively.
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Simulating Slow Internet Connection
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If you're running windows, fiddler is a great tool. It has a setting to simulate modem speed, and for someone who wants more control has a plugin to add latency to each request.
I prefer using a tool like this to putting latency code in my application as it is a much more rea...