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E11000 duplicate key error index in mongodb mongoose

...xes From comments: Your error says that the key is named mydb.users.$email_1 which makes me suspect that you have an index on both users.email and users.local.email (The former being old and unused at the moment). Removing a field from a Mongoose model doesn't affect the database. Check with mydb.u...
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MySQL “incorrect string value” error when save unicode string in Django

I got strange error message when tried to save first_name, last_name to Django's auth_user model. 9 Answers ...
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Remove Object from Array using JavaScript

...odash.js or sugar.js for common tasks like this: // lodash.js someArray = _.reject(someArray, function(el) { return el.Name === "Kristian"; }); // sugar.js someArray.remove(function(el) { return el.Name === "Kristian"; }); in most projects, having a set of helper methods that is provided by libr...
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detect key press in python?

...for pause and s for stop), and I would not like it to be something like raw_input that waits for the user's input before continuing execution. Anyone know how to do this in a while loop? ...
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How do you create a Swift Date object?

...yy-MM-dd" dateStringFormatter.locale = NSLocale(localeIdentifier: "en_US_POSIX") let d = dateStringFormatter.dateFromString(dateString)! self.init(timeInterval:0, sinceDate:d) } } Now you can create an NSDate from Swift just by doing: NSDate(dateString:"2014-06-06") Pleas...
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Qt 5.1.1: Application failed to start because platform plugin “windows” is missing

... However, setting the following environment variable worked for me: QT_QPA_PLATFORM_PLUGIN_PATH=%QTDIR%\plugins\platforms\ – arsalank2 Jun 24 '15 at 11:34 ...
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Efficient way to determine number of digits in an integer

...zation optimization for 32-bit numbers template<> int numDigits(int32_t x) { if (x == MIN_INT) return 10 + 1; if (x < 0) return numDigits(-x) + 1; if (x >= 10000) { if (x >= 10000000) { if (x >= 100000000) { if (x >= 1000000000) ...
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Picking a random element from a set

...See [boost's docs][1] for a little more in this. [1] boost.org/doc/libs/1_43_0/doc/html/unordered/buckets.html – Aaron McDaid Jul 20 '10 at 13:50 ...
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CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...作系统:CentOS release 6.4 (Final) Squid版本:squid-3.1.10-20.el6_5.3.x86_64 SELINUX=disabled HTTP Service: stoped 三、安装Squid服务 3.1 检查squid软件是否安装 # rpm -qa|grep squid 3.2 如果未安装,则使用yum 方式安装 # yum -y install squid 3.3 设置开机...
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How can I use a DLL file from Python?

...ed function call. # HLLAPI hllApiProto = ctypes.WINFUNCTYPE ( ctypes.c_int, # Return type. ctypes.c_void_p, # Parameters 1 ... ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p) # ... thru 4. hllApiParams = (1, "p1", 0), (1, "p2", 0), (1, "p3",0), (1, "p4",0), # Actual...