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How to access a preexisting collection with Mongoose?
I have a large collection of 300 question objects in a database test . I can interact with this collection easily through MongoDB's interactive shell; however, when I try to get the collection through Mongoose in an express.js application I get an empty array.
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How to validate GUID is a GUID
...
When I'm just testing a string to see if it is a GUID, I don't really want to create a Guid object that I don't need. So...
public static class GuidEx
{
public static bool IsGuid(string value)
{
Guid x;
return Gui...
How to automate createsuperuser on django?
... user.save()
Example use:
./manage.py createsuperuser2 --username test1 --password 123321 --noinput --email 'blank@email.com'
This has the advantage of still supporting the default command use, while also allowing non-interactive use for specifying a password.
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App Inventor 2 接入百度网盘API · App Inventor 2 中文网
...客户端】
https://pan.baidu.com/rest/2.0/xpan/file?method=list&dir=/test&order=time&start=0&limit=10&web=web&folder=0&access_token=[access_token]&desc=1
参考代码如下：
注意：这里是限定显示第一页，每页 10 条，可以改请求参数拿更多的文件：start=0&limit...
Create directories using make file
...t needed a bit of adaptation to the suite of software that I am using as a test ground. The suite has a dozen separate programs built with source spread across 15 directories, some of it shared. But with a bit of care, it can be done. OTOH, it might not be appropriate for a newbie.
As noted in...
Linking static libraries to other static libraries
...he rest: The shell script shown here is certainly not safe to use and well tested. Use at your own risk!
I wrote a bash script to accomplish that task. Suppose your library is lib1 and the one you need to include some symbols from is lib2. The script now runs in a loop, where it first checks which ...
filename and line number of python script
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Whether you use currentframe().f_back depends on whether you are using a
function or not.
Calling inspect directly:
from inspect import currentframe, getframeinfo
cf = currentframe()
filename = getframeinfo(cf).filename
print "This is line 5, python say...
fatal error LNK1112: module machine type 'x64' conflicts with target machine type 'X86'
... this error. I ran into it when trying to build a project using the Google Test libs.
– kayleeFrye_onDeck
Feb 5 '16 at 20:07
3
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What is a stack trace, and how can I use it to debug my application errors?
...bility to manipulate stack trace information.
Standard behavior:
package test.stack.trace;
public class SomeClass {
public void methodA() {
methodB();
}
public void methodB() {
methodC();
}
public void methodC() {
throw new RuntimeException();
}
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How do I find a “gap” in running counter with SQL?
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This works in SQL Server - can't test it in other systems but it seems standard...
SELECT MIN(t1.ID)+1 FROM mytable t1 WHERE NOT EXISTS (SELECT ID FROM mytable WHERE ID = (t1.ID + 1))
You could also add a starting point to the where clause...
SELECT MIN(...