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Why Qt is misusing model/view terminology?
...del you are using (own model subclass: probably within the model; e.g. QSqlTableModel: outside (but maybe cached within) the model). To put your models and views together, use own classes which then implement the business logic.
Long answer
Qt's model/view approach and terminology:
Qt provides ...
SQL : BETWEEN vs =
...r a range. This is especially true if you have similar field names in your table.
If, say, our table has both a transactiondate and a transitiondate, if I read
transactiondate between ...
I know immediately that both ends of the test are against this one field.
If I read
transactiondate>='2...
How to get a DOM Element from a JQuery Selector
...
You can access the raw DOM element with:
$("table").get(0);
or more simply:
$("table")[0];
There isn't actually a lot you need this for however (in my experience). Take your checkbox example:
$(":checkbox").click(function() {
if ($(this).is(":checked")) {
/...
Why is isNaN(null) == false in JS?
...is a value of the numeric data type representing an undefined or unrepresentable value, especially in floating-point calculations.
In most cases we think the answer to "is null numeric?" should be no. However, isNaN(null) == false is semantically correct, because null is not NaN.
Here's the algor...
c# datatable insert column at position 0
does anyone know the best way to insert a column in a datatable at position 0?
3 Answers
...
phpmyadmin logs out after 1440 secs
...in install path (ex. /usr/share/phpMyAdmin/ on my centos7) and find create_tables.sql in one of its subfolders (phpMyAdmin/sql/create_tables.sql in my 4.4.9 version.) and execute whole file contents on your current phpMyAdmin site from your web browser. This will create a database named phpmyadmin w...
Web workers without a separate Javascript file?
...ently supported in latest Firefox/WebKit/Opera and IE10, see compatibility tables for older browsers.
– Félix Saparelli
Jan 19 '13 at 9:42
...
What does (x ^ 0x1) != 0 mean?
...hex notation
x ^ 0x1 will invert the last bit of x (refer to the XOR truth table in the link above if that's not clear to you).
So, the condition (0 != ( x ^ 0x1 )) will be true if x is greater than 1 or if the last bit of x is 0. Which only leaves x==1 as a value at which the condition will be fa...
How to connect to SQL Server database from JavaScript in the browser?
...g);
var rs = new ActiveXObject("ADODB.Recordset");
rs.Open("SELECT * FROM table", connection);
rs.MoveFirst
while(!rs.eof)
{
document.write(rs.fields(1));
rs.movenext;
}
rs.close;
connection.close;
A better way to connect to a sql server would be to use some server side language like PHP,...
How to get share counts using graph API
...er is possible with the Graph API through the fql end-point (the link_stat table):
https://graph.facebook.com/fql?q=SELECT url, normalized_url, share_count, like_count, comment_count, total_count,commentsbox_count, comments_fbid, click_count FROM link_stat WHERE url='http://www.google.com'
tota...