generator

问题 I've created a custom generator to map my database into my app and I'm having an issue. I've customized it to generate the auto increment columns as optional, so I've made this: val codegen = new scala.slick.model.codegen.SourceCodeGenerator(model) { override def Table = new Table(_){ override def autoIncLastAsOption = true } } For the tables that has more than 22 columns, it uses HList implementation and not the Scala Tuple. It is generating this: implicit def GetResultVoicemailRow(implicit

问题 im trying to make a wep key generator and ive read how wep keys work but i really dont even know how to start making it. can anyone give me an example or direct me to a tutorial? i tried using google but no luck. 回答1: in javascript... function generateHexString(length) { var ret = ""; while (ret.length < length) { ret += Math.random().toString(16).substring(2); } return ret.substring(0,length); } // 40-/64-bit WEP: 10 digit key alert("40-bit:" + generateHexString(10)); // 104-/128-bit WEP: 26

问题 I created a model in the edm designer (VS10) using "DbContext Entity Generator" as the generation item. In the generated DbContext subclass, it overrode the constructor so I can't use it in the other partial class: public EntitiesContainer() : base("name=EntitiesContainer") { this.Configuration.LazyLoadingEnabled = false; } What's the proper way of initialize a database with model-first? 回答1: You could alter the T4 template that's being used for generating the DbContxt class. Then you could

问题 I have a C++ project that uses the CMake build system. I use a MacBook Pro for development, so when I use the terminal everything works like a charm, and I can build my project. However, today I found out that I could use Xcode after creating the respective project using the CMake generator: $> cmake -G Xcode . It works the project and it looks fine, except for the fact that I can't build anything. It doesn't recognize symbols included from included files. Why is this? It seems as if the

问题 How to wrap asynchronous and gen functions together in Tornado? My code looks like below, the error is 'Future' object has no attribute 'body'. Did I place the decorators in a wrong way? import tornado.httpclient import tornado.web import tornado.gen import tornado.httpserver import tornado.ioloop class Class1(tornado.web.RequestHandler): @tornado.web.asynchronous def post(self, *args, **kwargs): url = self.get_argument('url', None) response = self.json_fetch('POST', url, self.request.body)

问题 How would you generate the following sequence of strings in Python? 00:00:00 00:00:07 00:00:14 00:00:21 ... 00:00:49 00:00:56 00:01:03 The step is 7 seconds. The end is about 03:30:+/- I would come with solution that uses modular arithmetic (first 1200 to have hours, than 60 to have minutes and the remainder are seconds and the numbers should be converted to strings and "one-place" strings should be prefixed by "0"). Is there some smarter (pythonic) solution with using some helper generators

问题 How would you generate the following sequence of strings in Python? 00:00:00 00:00:07 00:00:14 00:00:21 ... 00:00:49 00:00:56 00:01:03 The step is 7 seconds. The end is about 03:30:+/- I would come with solution that uses modular arithmetic (first 1200 to have hours, than 60 to have minutes and the remainder are seconds and the numbers should be converted to strings and "one-place" strings should be prefixed by "0"). Is there some smarter (pythonic) solution with using some helper generators

问题 According to comments from documentation: http://php.net/manual/en/language.generators.overview.php We can see that thanks to generators there is huge memory usage improvement (which is obvious), but there is also 2-3 times slower execution - and that is not so obvious to me. We gain memory usage improvement at the expense of time - which is not fine. So, why is php generator slower than an array? Thanks for tips. 回答1: In computer science, when doing optimizations a lot of the times you will

问题 Practically, I've got a set of objects with probabilities, and I want to look at each possible group of them, in order of how likely it is that they're all true assuming they're independent -- i.e. in descending order of the product of the elements of the subsets -- or in order of length if the probabilities are the same (so that (1, 0.5) comes after (0.5)). Example: If I have [ 1, 0.5, 0.1 ] I want [ (), (1), (0.5), (1, 0.5), (0.1), (1, 0.1), (0.5, 0.1), (1, 0.5, 0.1) ] In essence, this

问题 Practically, I've got a set of objects with probabilities, and I want to look at each possible group of them, in order of how likely it is that they're all true assuming they're independent -- i.e. in descending order of the product of the elements of the subsets -- or in order of length if the probabilities are the same (so that (1, 0.5) comes after (0.5)). Example: If I have [ 1, 0.5, 0.1 ] I want [ (), (1), (0.5), (1, 0.5), (0.1), (1, 0.1), (0.5, 0.1), (1, 0.5, 0.1) ] In essence, this