大约有 30,160 项符合查询结果(耗时:0.0450秒) [XML]
Django “login() takes exactly 1 argument (2 given)” error
...
add a comment
|
16
...
How to select where ID in Array Rails ActiveRecord without exception
...he "find_all_by.." family of functions works without throwing exceptions.
Comment.find_all_by_id([2, 3, 5])
will work even if some of the ids don't exist. This works in the
user.comments.find_all_by_id(potentially_nonexistent_ids)
case as well.
Update: Rails 4
Comment.where(id: [2, 3, 5])
...
Maintain git repo inside another git repo
...ry. This lets you clone another repository into your project and keep your commits separate.
share
|
improve this answer
|
follow
|
...
In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
I'm trying to complete the puzzle.
3 Answers
3
...
How to make a select with array contains value clause in psql
...
add a comment
|
65
...
Is SHA-1 secure for password storage?
...A-1 is as safe as anything against preimage attacks, however it is easy to compute, which means it is easier to mount a bruteforce or dictionary attack. (The same is true for successors like SHA-256.) Depending on the circumstances, a hash function which was designed to be computationally expensive ...
Delete directories recursively in Java
...
You should check out Apache's commons-io. It has a FileUtils class that will do what you want.
FileUtils.deleteDirectory(new File("directory"));
share
|
...
Is it valid to have a tag inside another tag?
...
add a comment
|
10
...
Create empty queryset by default in django form fields
...
add a comment
|
2
...
Math.random() versus Random.nextInt(int)
...of six 'buckets' (0, 1, 2, 3, 4, 5), each bucket corresponding to ranges encompassing either 1501199875790165 or 1501199875790166 of the possible values (as 6 is not a disvisor of 2^53). This means that for a sufficient number of dice rolls (or a die with a sufficiently large number of sides), the d...
