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Explicitly set Id with Doctrine when using “AUTO” strategy

... New solution works fine only when ALL entities have id before insert. When one entity has ID and another one does not - new solution is failing. I use this function for import all my data: function createEntity(\Doctrine\ORM\EntityManager $em, $entity, $id ...
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How to remove all null elements from a ArrayList or String Array?

... Try: tourists.removeAll(Collections.singleton(null)); Read the Java API. The code will throw java.lang.UnsupportedOperationException for immutable lists (such as created with Arrays.asList); see this answer for more details. ...
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Convert decimal to hexadecimal in UNIX shell script

...e=16; 123456" | bc. So the way to deal with arbitrary numbers of integers all on one line is to put each number on its own line: tr ' ' '\015' <input | bc (map blanks to newlines). – Jonathan Leffler Dec 25 '08 at 20:40 ...
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关于我们 · App Inventor 2 中文网,少儿编程陪伴者

...员中心 中文社区 关于 var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?8d287b854d737bdc880e8ddeac1b309d"; var s = document.getElementsByTagName("script")[0]; s.parentNod...
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Difference between EXISTS and IN in SQL?

... The exists keyword can be used in that way, but really it's intended as a way to avoid counting: --this statement needs to check the entire table select count(*) from [table] where ... --this statement is true as soon as one match is found exists ( select * from [table] ...
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Regular Expression For Duplicate Words

...)\s+\b\1\b/ A good selection of test strings can be found here: http://callumacrae.github.com/regex-tuesday/challenge1.html share | improve this answer | follow ...
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Center image in div horizontally [duplicate]

.../* for the img inside your div */ display: block; margin: 0 auto; That's all. Note, that you'll also have to set an initial min-width for your outer div. share | improve this answer | ...
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Invoking JavaScript code in an iframe from the parent page

...oes not work for my gadget, here is my code document.getElementById('remote_iframe_0').contentWindow.my.create_element_gadg‌​et('verify_user');" remote_iframe_0 is created programmaticaly by a apache shindig server but window.parent.document.getElementById('remote_iframe_0').contentWindow.my.cr...
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Mix Razor and Javascript code

...avascript blocks when executed but I hate how the syntax highlighting gets all sorts of confused. It highlights all the Razor code as invalid Syntax because it's stuck in Javascript mode I believe. – Chev Aug 10 '12 at 16:29 ...
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Website screenshots

... Sure you can, but you'll need to render the page with something. If you really want to only use php, I suggest you HTMLTOPS, which renders the page and outputs it in a ps file (ghostscript), then, convert it in a .jpg, .png, .pdf.. can be little slower with complex pages (and don't support all the ...