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mongodb: insert if not exists
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-1 This answer is dangerous. You find by the value of "key" and then you erase "key", so that subsequently you won't be able to find it again. This is a very unlikely use case.
– Mark E. Haase
Dec 29 '13 at 21:33
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Using CSS to affect div style inside iframe
... of iframe come from outside. I tried to apply css to iframe that rendered by script but it stil not work.l
– Võ Minh
Feb 8 '19 at 9:57
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How to add images in select list?
...ayed. If you want to allow selecting multiple values, you could achieve it by using checkboxes instead of radio buttons.
Here is an example. The code may be a bit messier (specially compared to the other solutions):
.select-sim {
width:200px;
height:22px;
line-height:22px;
vertical...
How do I load an HTML page in a using JavaScript?
... problem. The solution is
function load_home() {
document.getElementById("content").innerHTML='<object type="text/html" data="home.html" ></object>';
}
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improve this answe...
How to test an SQL Update statement before running it?
... mandatory anyway) you can also do a sanity check which rows are affected by running a select using the same WHERE clause as the UPDATE.
So if you UPDATE is
UPDATE foo
SET bar = 42
WHERE col1 = 1
AND col2 = 'foobar';
The following will show you which rows will be updated:
SELECT *
FROM fo...
Laravel Eloquent ORM Transactions
...($user) { ...stuffs referencing $user... });
– Polsonby
Jun 22 '16 at 8:25
Discussed in more detail here link is dead....
Update relationships when saving changes of EF4 POCO objects
...relation in object graph.
Manual synchronization is proposed as solution by MSDN documentation: Attaching and Detaching objects says:
Objects are attached to the object
context in an Unchanged state. If you
need to change the state of an object
or the relationship because you know
tha...
onTouchListener warning: onTouch should call View#performClick when a click is detected
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performClick();
return super.onTouchEvent(event);
}
or
findViewById(R.id.view1).setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
v.performClick();
return v.onTouchEvent(event);
}
});
OnTouch flow...
Find a value anywhere in a database
...: To search all columns of all tables for a given search string
-- Written by: Narayana Vyas Kondreddi
-- Site: http://vyaskn.tripod.com
-- Tested on: SQL Server 7.0 and SQL Server 2000
-- Date modified: 28th July 2002 22:50 GMT
DECLARE @Results TABLE(ColumnName nvarchar(370), ColumnValue nvarchar(...
Calculate difference between two datetimes in MySQL
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...