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How to execute raw SQL in Flask-SQLAlchemy app
...r database, but all of the major relational databases support them in some form.
Assuming it's a SELECT query, this will return an iterable of RowProxy objects.
You can access individual columns with a variety of techniques:
for r in result:
print(r[0]) # Access by positional index
print(...
How to update SQLAlchemy row entry?
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They are not. The former sets the attribute to an SQL expression, the latter performs an in-place addition in Python and again introduces the race.
– Ilja Everilä
Sep 28 '18 at 4:28
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Multiple file upload in php
...) take a look at SWFUpload. It works differently from a normal file upload form and requires Flash to work, though. SWFUpload was obsoleted along with Flash. Check the other, newer answers for the now-correct approach.
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Setting focus on an HTML input box on page load
...
You could also use:
<body onload="focusOnInput()">
<form name="passwordForm" action="verify.php" method="post">
<input name="passwordInput" type="password" />
</form>
</body>
And then in your JavaScript:
function focusOnInput() {
documen...
Inserting HTML elements with JavaScript
...his method works in all modern browsers. For IE 5.5 and below you could perform a check like:: if (document.createDocumentFragment) { create('...'); } else { /* Use innerHTML perhaps */ }
– James
May 2 '09 at 14:41
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When to use ' (or quote) in Lisp?
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We'd get (+ 3 2), + is then invoked on 3 and 2 yielding 5. Our original form is now (* 5 3) yielding 15.
Explain quote Already!
Alright. As seen above, all arguments to a function are evaluated, so if you would like to pass the symbol a and not its value, you don't want to evaluate it. Lisp sy...
Inconsistent Accessibility: Parameter type is less accessible than method
...bject (a reference to the currently logged on user, basically) between two forms. At the moment, I have something along these lines in the login form:
...
What does it mean that Javascript is a prototype based language?
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Prototypal inheritance is a form of object-oriented code reuse. Javascript is one of the only [mainstream] object-oriented languages to use prototypal inheritance. Almost all other object-oriented languages are classical.
In classical inheritance, th...
“The remote certificate is invalid according to the validation procedure.” using Gmail SMTP server
...rrors.None)
return true;
else
{
if (System.Windows.Forms.MessageBox.Show("The server certificate is not valid.\nAccept?", "Certificate Validation", System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question) == System.Windows.Forms.DialogResult...
What is the _references.js used for?
...the intellisense for it. You can add a reference to your custom JS file in form like this:
/// <reference path="MyScriptFile.js" />
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