大约有 43,000 项符合查询结果（耗时：0.0436秒） [XML]
Deprecated warning for Rails 4 has_many with order
...e passed before any other association options such as dependent: :destroy etc.
Give this a try:
has_many :contents, -> { order(:position) }
To specify order direction, i.e. either asc or desc as @joshua-coady and @wsprujit have suggested, use:
has_many :contents, -> { order 'position ...
phpinfo() - is there an easy way for seeing it?
...eb server make sure you specify the ini file path, for example...
php -c /etc/php/apache2/php.ini -i
share
|
improve this answer
|
follow
|
...
Minimal web server using netcat
I'm trying to set up a minimal web server using netcat (nc). When the browser calls up localhost:1500, for instance, it should show the result of a function ( date in the example below, but eventually it'll be a python or c program that yields some data).
My little netcat web server needs to be a w...
CruiseControl [.Net] vs TeamCity for continuous integration?
...e build statistics page that shows build times, unit test count, pass rate etc. is very nice. TeamCity's project home page is also very valuable.
For simple .NET projects you can just tell TeamCity where the solution is and what assemblies have tests and that is all it needs (other than source contr...
Is there a good reason to use upper case for SQL keywords? [closed]
...ated somewhere in 90s) all tablenames, columns, indexes, stored procedures etc. are all capitalised, hence we go for lowercase SQL keywords. ;)
– Andreas
Nov 25 '15 at 12:23
1
...
IntelliJ: Viewing diff of all changed files between local and a git commit/branch
...all the capabilities of the IntelliJ code editor (refactoring, completion, etc).
6 Answers
...
Escaping keyword-like column names in Postgres
...(registered by Postgres) as the name of Table, Schema, Function or Trigger etc, you must have to use either double quotes, or you can specify schema name with dot concatenation.
Let's Suppose, order is the keyword registered by Postgres. And in some scenarios, you must have to use this keyword as a...
Can a C++ enum class have methods?
...nt, type_traits dependent code will not work, so e.g. one cannot use auto, etc. There may be some way of handling such stuff, but in the end one is converting an enum into a class, and it is always a mistake to subvert C++
the enum struct and enum class specifications are about scoping so not part...
Entity Framework Join 3 Tables
...aming things verbosely e.g. "EntryID" vs. "EID", "combinedEntry" vs. "cm", etc. Eventually, someone else is going to read my code, and I'd rather they not grow hatred for me as a linear function of the number of lines of my code they've had to read / maintain.
– Dan Bechard
...
What is the difference between Amazon S3 and Amazon EC2 instance?
...t;<-- this is required for running server services (php, apache, mySQL, etc). This can be ephemeral so you can lose your data with a reboot or persistent, you have to specify persistent.
S3 uses object storage - blob - Binary Large OBject file system like flat databases, store on the object leve...