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Detect when browser receives file download
...
Show the "waiting" indicator.
Start a timer, and every second or so, look for a cookie named "fileDownloadToken" (or whatever you decide).
If the cookie exists, and its value matches the token, hide the "waiting" indicator.
The server algorithm:
Look for the GET/POST field in the request.
If it...
Select Last Row in the Table
...hen the upload was done called upload_time, you'd do something like this;
For Pre-Laravel 4
return DB::table('files')->order_by('upload_time', 'desc')->first();
For Laravel 4 and onwards
return DB::table('files')->orderBy('upload_time', 'desc')->first();
For Laravel 5.7 and onward...
Sequence contains more than one element
...he collections contains exactly 0 or 1 element. I believe you are looking for FirstOrDefault which will succeed no matter how many elements are in the collection.
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Best way to center a on a page vertically and horizontally? [duplicate]
...to is set to zero. However, an absolutely positioned element acts the same for distribution of free space, and similarly can be centered vertically at the specified top and bottom (does not work in IE7).
This trick will work with any sizes of div.
div {
width: 100px;
height: 100px;
backg...
Entity Attribute Value Database vs. strict Relational Model Ecommerce
...lex code required to validate simple data types
Con: much more complex SQL for simple
reports
Con: complex reports can become almost
impossible
Con: poor performance for large data sets
Option 2, Modelling each entity separately:
Con: more time required to gather
requirements and design
Con: new...
菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...;//获得子菜单（如果有）0表示索引，对应“文件”菜单
for(int i=0;i<3;i++)
{
CBitmap bmp;
bmp.LoadBitmap(IDB_BITMAP1+i);
pSubMenu->SetMenuItemBitmaps(i,MF_BYPOSITION,&bmp,&bmp);
bmp.Detach();
}
CBitmap bmp;
CBrush m_BKBrush;
bmp.LoadBitmap(IDB_MENUBA...
difference between scope and namespace of ruby-on-rails 3 routing
...e paths generated.
The paths are admin_posts_path and admin_comments_path for the namespace, while they are just posts_path and comments_path for the scope.
You can get the same result as a namespace by passing the :name_prefix option to scope.
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What is a 'multi-part identifier' and why can't it be bound?
...fier is any description of a field or table that contains multiple parts - for instance MyTable.SomeRow - if it can't be bound that means there's something wrong with it - either you've got a simple typo, or a confusion between table and column. It can also be caused by using reserved words in your...
Equivalent of LIMIT and OFFSET for SQL Server?
...user to do so).
Note: the @Offset parameter should use one-based indexing for this rather than the normal zero-based indexing.
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How to set default value to the input[type=“date”] [duplicate]
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The date should take the format YYYY-MM-DD. Single digit days and months should be padded with a 0. January is 01.
From the documentation:
A string representing a date.
Value: A valid full-date as defined in [RFC 3339], with the additional ...