大约有 47,000 项符合查询结果（耗时：0.0665秒） [XML]
What is the best way to clear a session variable in rails?
...will leave the :message key in the session hash, this will destroy the key and value, as if your session never had any value assigned to that key.
– Brett Bender
Oct 22 '10 at 17:22
...
What size do you use for varchar(MAX) in your parameter declaration?
...-1, so I dont have to maintain a db-matching list?
– Andrew Bullock
Jul 23 '14 at 16:02
1
Varchar...
Print current call stack from a method in Python code
...
Here's an example of getting the stack via the traceback module, and printing it:
import traceback
def f():
g()
def g():
for line in traceback.format_stack():
print(line.strip())
f()
# Prints:
# File "so-stack.py", line 10, in <module>
# f()
# File "so-stack....
How to add 10 days to current time in Rails
...ven
10.days.from_now
Both definitely work. Are you sure you're in Rails and not just Ruby?
If you definitely are in Rails, where are you trying to run this from? Note that Active Support has to be loaded.
share
...
HAProxy redirecting http to https (ssl)
I'm using HAProxy for load balancing and only want my site to support https. Thus, I'd like to redirect all requests on port 80 to port 443.
...
Escaping regex string
... as a regex pattern for a search over some text. It works, but how I can handle cases where user puts characters that have meaning in regex?
...
Ruby / Rails: convert int to time OR get time from integer?
...]) => time: Creates a new time object with the given number of seconds (and optional microseconds) from epoch.
API links
ruby-doc.org/core/classes/Time
share
|
improve this answer
|
...
MongoDB inserts float when trying to insert integer
...
If the value type is already double, then update the value with $set command can not change the value type double to int when using NumberInt() or NumberLong() function.
So, to Change the value type, it must update the whole record.
var re = db.data.find({"name": "zero"})
re['value']=NumberInt(0)...
What was the strangest coding standard rule that you were forced to follow? [closed]
...this question I got almost always a definite yes you should have coding standards.
112 Answers
...
How to remove elements from a generic list while iterating over it?
...er pattern for working with a list of elements which each need processed and then depending on the outcome are removed from the list.
...