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How to display unique records from a has_many through relationship?
...te that -> {uniq} in this sense is just an alias for -> {distinct} apidock.com/rails/v4.1.8/ActiveRecord/QueryMethods/uniq It occurs in SQL not ruby
– engineerDave
Mar 26 '15 at 21:37
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How do I sort a list of dictionaries by a value of the dictionary?
... is rather hackish, since it relies on converting the values into a single string representation for comparison, but it works as expected for numbers including negative ones (although you will need to format your string appropriately with zero paddings if you are using numbers).
...
Simple way to convert datarow array to datatable
...ework 3.5+
DataTable dt = new DataTable();
DataRow[] dr = dt.Select("Your string");
DataTable dt1 = dr.CopyToDataTable();
But if there is no rows in the array, it can cause the errors such as The source contains no DataRows. Therefore, if you decide to use this method CopyToDataTable(), you shoul...
Chrome: Uncaught SyntaxError: Unexpected end of input
... same error, because I was using JSON.parse(text) and text value was empty string
– A Khudairy
Feb 24 '15 at 16:50
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Factory Pattern. When to use factory methods?
...n they actually want.
public interface IThingFactory
{
Thing GetThing(string theString);
}
public class ThingFactory : IThingFactory
{
public Thing GetThing(string theString)
{
return new Thing(theString, firstDependency, secondDependency);
}
}
So, now the consumer of the...
How to make a floated div 100% height of its parent?
...t;style>
#outer {
position:absolute;
height:auto; width:200px;
border: 1px solid red;
}
#inner {
position:absolute;
height:100%;
width:20px;
border: 1px solid black;
}
</style>
<div id='outer'>
<div...
`ui-router` $stateParams vs. $state.params
...the original $state.params, and seems to be a simple helper injector to avoid continuously writing $state.params.
I doubt there are any best practice guidelines, but context wins out for me. If you simply want access to the params received into the url, then use $stateParams. If you want to know so...
Java equivalent of unsigned long long?
...345");
To print it, you can not simply print l1, but you have to first:
String l1Str = Long.toUnsignedString(l1)
Then
System.out.println(l1Str);
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UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...中）， 在这个函数中调用 uc_api_post('user', 'synlogin', array('uid'=>$uid));之后向UC_API.'/index.php'传递了数据；这里的UC_API就是在 config.inc.php中的定义的uc_server之URL地址。
2、uc_server的index.php接受参数数据，获得model为user，action为synlogin...
How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
...
One trick is to avoid activeByDefault, and instead activate the profile by the absence of a property, eg:
<profiles>
<profile>
<id>firstProfile</id>
<activation>
<property>
<name&g...