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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... local args = ngx.req.get_post_args(); for field, value in pairs(args) do if type(value) ~= "table" then config:set(field, value); end end ngx.say("OK"); ...
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Using column alias in WHERE clause of MySQL query produces an error

... Cheers for the quick and accurate response! I've had a look into the HAVING clause and worked out a way to successfully run this query. Thanks again. – James Jun 3 '09 at 0:42 ...
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Find() vs. Where().FirstOrDefault()

...lements IEnumerable<T> can use these methods. Find is available only for the List<T>. Methods that are generally more applicable, are then more reusable and have a greater impact. I guess my next question would be why did they add the find at all. That is a good tip. The only thing I...
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Rails: where does the infamous “current_user” come from?

... is sessions sort of like a commonly used controller/model for the purpose of controlling a users login status? or is it built into rails? – bigpotato Oct 4 '12 at 4:03 ...
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An item with the same key has already been added

I get this error whenever I submit the form also the action method is not being called because of this: 21 Answers ...
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Query an XDocument for elements by name at any depth

I have an XDocument object. I want to query for elements with a particular name at any depth using LINQ. When I use Descendants("element_name") , I only get elements that are direct children of the current level. What I'm looking for is the equivalent of "//element_name" in XPath...should I ju...
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Select element based on multiple classes

...I want to apply to a tag when it has two classes. Is there any way to perform this without JavaScript? In other words: 3 ...
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What is the advantage of using heredoc in PHP? [closed]

... The heredoc syntax is much cleaner to me and it is really useful for multi-line strings and avoiding quoting issues. Back in the day I used to use them to construct SQL queries: $sql = <<<SQL select * from $tablename where id in [$order_ids_list] and product_name = "widget...
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How can I inject a property value into a Spring Bean which was configured using annotations?

...ivate String githubOauthClientId; Here is a blog post I wrote about this for a little more info. share | improve this answer | follow | ...
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Check whether user has a Chrome extension installed

I am in the process of building a Chrome extension, and for the whole thing to work the way I would like it to, I need an external JavaScript script to be able to detect if a user has my extension installed. ...