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Redis strings vs Redis hashes to represent JSON: efficiency?
... JSON-encoded string in a single key and keep track of all Objects using a set (or list, if more appropriate). For example:
INCR id:users
SET user:{id} '{"name":"Fred","age":25}'
SADD users {id}
Generally speaking, this is probably the best method in most cases. If there are a lot of fields in th...
django: BooleanField, how to set the default value to true?
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If you're just using a vanilla form (not a ModelForm), you can set a Field initial value ( https://docs.djangoproject.com/en/2.2/ref/forms/fields/#django.forms.Field.initial ) like
class MyForm(forms.Form):
my_field = forms.BooleanField(initial=True)
If you're using a ModelForm, y...
How to set UICollectionViewDelegateFlowLayout?
...his will only work if self.collectionView.collectionViewLayout is actually set to your flow layout. (or set with initWithFrame:collectionViewLayout:)
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image.onload event and browser cache
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As you're generating the image dynamically, set the onload property before the src.
var img = new Image();
img.onload = function () {
alert("image is loaded");
}
img.src = "img.jpg";
Fiddle - tested on latest Firefox and Chrome releases.
You can also use the ans...
Enable zooming/pinch on UIWebView
...lf.mWebview = [[UIWebView alloc] init];
self.mWebview.delegate = self; /// set delegate method of UIWebView
self.mWebview.frame = CGRectMake(0, 35, self.view.bounds.size.width, self.view.bounds.size.height - 80); // set frame whatever you want..
[self.mWebview setOpaque:NO];
self.mWebview.background...
Xcode 4, Core Data Model Version - Set Current Version
I'm confused about how to perform the following function in Xcode 4 to set the model to use after creating a versioned model.
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CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C/C++及内核技术
...s that is included with the MFC Grid. The class uses the computer's locale settings to display the numbers, but does provide a way for you to override those settings. The numbers, if you set the cell to use floating point, will be kept to an accuracy of nine decimal places, even if they are only dis...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C/C++及内核技术
...s that is included with the MFC Grid. The class uses the computer's locale settings to display the numbers, but does provide a way for you to override those settings. The numbers, if you set the cell to use floating point, will be kept to an accuracy of nine decimal places, even if they are only dis...
How to set background color in jquery
How to set background color of td in jQuery?
5 Answers
5
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Ignoring a class property in Entity Framework 4.1 Code First
... a particular property
public class Customer
{
public int CustomerID { set; get; }
public string FirstName { set; get; }
public string LastName{ set; get; }
[NotMapped]
public int Age { set; get; }
}
[NotMapped] attribute is included in the System.ComponentModel.DataAnnotation...