大约有 44,000 项符合查询结果（耗时：0.0518秒） [XML]
How to chain scope queries with OR instead of AND?
...ou would do
Person.where('name=? OR lastname=?', 'John', 'Smith')
Right now, there isn't any other OR support by the new AR3 syntax (that is without using some 3rd party gem).
share
|
improve thi...
Does PostgreSQL support “accent insensitive” collations?
...n't tested it myself. I think I have come up with a better idea:
Best for now
This approach is more efficient as other solutions floating around, and safer.
Create an IMMUTABLE SQL wrapper function executing the two-parameter form with hard-wired schema-qualified function and dictionary.
Since ne...
How do I git rebase the first commit?
I used git init to create a fresh repo, then made three commits. Now I want to rebase to go back and amend my first commit, but if I do git rebase -i HEAD~3 it complains! If I try the same with HEAD~2 then it kinda works but only lets me rearrange the last two commits.
...
Equation for testing if a point is inside a circle
...
if dx>R then
return false.
if dy>R then
return false.
Now imagine a square diamond drawn inside this circle such that it's vertices touch this circle:
if dx + dy <= R then
return true.
Now we have covered most of our space and only a small area of this circle remains ...
What is an application binary interface (ABI)?
... Libraries are full of code and other resources, but your program has to know how to locate what it needs inside the library file. Your ABI defines how the contents of a library are stored inside the file, and your program uses the ABI to search through the file and find what it needs. If everyth...
When to use a Content Provider
... with other apps.
So even if you don't need any of these functionalities now, you might need them in future and its good to go the extra mile and implement them right now.
share
|
improve this ans...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
... No external dependencies, nice & short. Plus, if you know you have 16 bytes / 32 hex digits, your solution condenses to an easy one-liner. Cool!
– Roboprog
Apr 6 '13 at 1:06
...
How to set versionName in APK filename using gradle?
... Is there any way to add variant.buildType.name to the name? I know this isn't really default config related, but I'm trying to figure out how to remove the obsolete variantOutput.getAssemble() warning
– Allan W
Mar 5 '19 at 5:51
...
jQuery - Get Width of Element when Not Visible (Display: None)
...ns and also returns the offset values.
/edit1: rewrote the function. it's now smaller and can be called directly on the object
/edit2: the function will now insert the clone just after the original element instead of the body, making it possible for the clone to maintain inherited dimensions.
$.f...
How do I get IntelliJ to recognize common Python modules?
...
Odd. I don't know what a facet is so I looked it up and the below page does not show python as an available facet. jetbrains.com/idea/help/…
– netskink
Apr 17 '15 at 22:51
...