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Flat file databases [closed]
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You might consider SQLite. It's almost as simple as flat files, but you do get a SQL engine for querying. It works well with PHP too.
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Unique fields that allow nulls in Django
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This answer only helps for form-based data input, but does nothing to actually protect data integrity. Data may be entered via import scripts, from the shell, through an API or any other means. Much better to override the save() method than to make custom cases for every form th...
How to detect if multiple keys are pressed at once using JavaScript?
...ltiple keystroke detection is easy if you understand the concept
The way I do it is like this:
var map = {}; // You could also use an array
onkeydown = onkeyup = function(e){
e = e || event; // to deal with IE
map[e.keyCode] = e.type == 'keydown';
/* insert conditional here */
}
This co...
Cannot change column used in a foreign key constraint
...nks to comments
You have to disallow writing to the database while you do this,
otherwise you risk data integrity problems.
I've added a write lock above
All writing queries in any other session than your own ( INSERT, UPDATE, DELETE ) will wait till timeout or UNLOCK TABLES; is executed
h...
What's the best way to set a single pixel in an HTML5 canvas?
...ageData at the location:
var id = myContext.createImageData(1,1); // only do this once per page
var d = id.data; // only do this once per page
d[0] = r;
d[1] = g;
d[2] = b;
d[3] = a;
myContext.putImageData( id, x, y );
Use fillRect() to draw a pixel (there shou...
Underlining text in UIButton
...tom type, and I want the Title to be underlined, but the Interface Builder does not provide any option to do so.
18 Answers...
What do the return values of node.js process.memoryUsage() stand for?
From the official documentation ( source ):
4 Answers
4
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How to “undelete” a deleted folder in Subversion / TortoiseSVN?
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This might be fine for tags, but should not be done to undelete any other folder since you will lose history
– slckin
Feb 24 '12 at 16:33
3
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Only get hash value using md5sum (without filename)
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the first line doesn't work inside the do section of a for loop...as a Bash newb I don't yet know why
– Andy
Jul 29 '15 at 1:20
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Recursive file search using PowerShell
... Seems to have an issue that if it runs into a directory you don't have permission to access, the entire search is aborted because the process exits. Is there a way around that?
– deed02392
Jun 20 '13 at 11:24
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