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MongoDB - Update objects in a document's array (nested updating)
...reak it into two parts. First, increment any document that has "items.item_name" equal to "my_item_two". For this you'll have to use the positional "$" operator. Something like:
db.bar.update( {user_id : 123456 , "items.item_name" : "my_item_two" } ,
{$inc : {"items.$.price" : ...
Importing a Swift protocol in Objective-C class
...
@interface AnalyticFactory : NSObject
{
Class<AnalyticProtocol> _analyticProtocolClass; // The type of the analytic class currently used.
}
In your implementation file (the objC .m file), you can import the Xcode generated Swift header ("ProductModuleName-Swift.h") file and the correct ...
Rails: Using build with a has_one association in rails
... later on create a profile for that user. I tried using build with a has_one association but that blew up. The only way I see this working is using has_many . The user is supposed to only have at most one profile .
...
How can I build multiple submit buttons django form?
...
You can use self.data in the clean_email method to access the POST data before validation. It should contain a key called newsletter_sub or newsletter_unsub depending on which button was pressed.
# in the context of a django.forms form
def clean(self):
...
How to create a temporary directory?
.../bin/bash
# the directory of the script
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
# the temp directory used, within $DIR
# omit the -p parameter to create a temporal directory in the default location
WORK_DIR=`mktemp -d -p "$DIR"`
# check if tmp dir was created
if [[ ! "...
Reading file contents on the client-side in javascript in various browsers
...)
{
alert(content);
}
ReadFileAllBrowsers(document.getElementById("file_upload"), CallBackFunction);
//Tested in Mozilla Firefox browser, Chrome
function ReadFileAllBrowsers(FileElement, CallBackFunction)
{
try
{
var file = FileElement.files[0];
var contents_ = "";
if (file) {
...
How do I debug error ECONNRESET in Node.js?
...ity wiki
2 revs, 2 users 67%Suzana_K
4
...
VC MFC工具栏(CToolBar)控件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...钮吧，首先在对应话类里添加一个按钮类成员变量CButton m_Button;
然后在对话框编辑区里给对话框添加一个按钮控件（单击这个按钮创建按钮控件）,然后添加这个按钮控件单击消息处理函数，并在函数添加以下语句：
RECT ButtonR...
How to Test a Concern in Rails
...t I have a Personable concern in my Rails 4 application which has a full_name method, how would I go about testing this using RSpec?
...
ValueError: invalid literal for int() with base 10: ''
...ame)
for line in h:
if line.strip():
[int(next(h).strip()) for _ in range(4)] # list of integers
This way it processes 5 lines at the time. Use h.next() instead of next(h) prior to Python 2.6.
The reason you had ValueError is because int cannot convert an empty string to the integ...