大约有 40,000 项符合查询结果(耗时:0.0550秒) [XML]

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Flask SQLAlchemy query, specify column names

... do I specify the column that I want in my query using a model (it selects all columns by default)? I know how to do this with the sqlalchmey session: session.query(self.col1) , but how do I do it with with models? I can't do SomeModel.query() . Is there a way? ...
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Detect Click into Iframe using JavaScript

... is cross domain. What I would like to do is track if the user clicked at all in the iframe . I imagine a scenario where there is an invisible div on top of the iframe and the the div will just then pass the click event to the iframe . ...
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How do you debug MySQL stored procedures?

... process for debugging stored procedures is very simple. I create a table called "debug" where I insert variable values from the stored procedure as it runs. This allows me to see the value of any variable at a given point in the script, but is there a better way to debug MySQL stored procedures? ...
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Building a complete online payment gateway like Paypal [closed]

...in, but by this I dont mean a local bank branch. Each major bank will generally have a separate card acquiring arm. So here in the UK we have (eg) Natwest bank, which uses Streamline (or Worldpay) as its acquiring arm. In total even though we have scores of major banks, they all end up using one of ...
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SSH Private Key Permissions using Git GUI or ssh-keygen are too open

...ssh folder and files to. If that doesn't work, I would try doing an uninstall of msysgit, deleting ALL .ssh folders on the computer (just for safe measure), then reinstalling msysgit with your desired settings and try starting over completely (though I think you told me you tried this already). Ed...
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How to explain dependency injection to a 5-year-old? [closed]

...new Employee( someAddress ); Working this way becomes problematic especially when you want to perform unit testing. The main problem comes when you need to test one particular object, you need to create an instance of other object, and most likely you need to create an instance of yet other obj...
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Why does Twitter Bootstrap Use Pixels for Font Size?

... Well it seems that they are hiding behind the browser zoom excuse. Really sad to see such a heavily used and influential framework completely ignore accessibility issues and a fundamental cornerstone of responsive design. They are in a position of great responsibility and unfortunately seem to...
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Hidden features of Eclipse [closed]

... Don't forget Ctrl+Shift+L, which displays a list of all the keyboard shortcut combinations (just in case you forget any of those listed here). share edi...
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What is the best way to uninstall gems from a rails3 project?

I installed all of my gems using bundler via the Gemfile. I thought (mistakenly) that if I deleted a gem from my Gemfile and ran 'bundle install' that the deleted gems would be uninstalled. I've looked at the bundler help file and, so far as I can tell, it does not have a way to uninstall gems. ...
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What does Serializable mean?

...it is an interface that if implemented in a class, this class can automatically be serialized and deserialized by different serializers. share | improve this answer | follow ...