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What are database normal forms and can you give examples? [closed]
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1NF is the most basic of normal forms - each cell in a table must contain only one piece of information, and there can be no duplicate rows.
2NF and 3NF are all about being dependent on the primary key. Recall that a primary key can be made up of multiple ...
Read file data without saving it in Flask
...as actually). Don't want to make a copy of it, just want to open it. The form-WTF has a nice file browser, but then it opens the file and makes a temporary file, which it presents as a memory stream. With a little work under the hood,
form = UploadForm()
if form.validate_on_submit():
f...
Performing user authentication in Java EE / JSF using j_security_check
...nd Java EE 6 core mechanisms (login/check permissions/logouts) with user information hold in a JPA entity. The Oracle Java EE tutorial is a bit sparse on this (only handles servlets).
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Is there a builtin confirmation dialog in Windows Forms?
I'd like to create a simple confirm dialog saying "Please check the information and if you're sure it's correct, click OK."
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Avoid dropdown menu close on click inside
...eak any other triggered events inside the drop down (i.e. my jquery mobile form elements) using this approach allows you to specifically identify when the menu itself is closing and allow you to take action on that event alone. this answer needs so many stars....
– webfish
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Should I put input elements inside a label element?
...le is being used for layout, with the label in one cell and its associated form field in another cell.
Either one is valid. I like to use either the first or second example, as it gives you more style control.
share
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How is an HTTP POST request made in node.js?
...gify({
'compilation_level' : 'ADVANCED_OPTIMIZATIONS',
'output_format': 'json',
'output_info': 'compiled_code',
'warning_level' : 'QUIET',
'js_code' : codestring
});
// An object of options to indicate where to post to
var post_options = {
host: 'closur...
The definitive guide to form-based website authentication [closed]
...lso for general guidelines on how to solve variations on common problems. "Form based authentication for websites" should be a fine topic for such an experiment.
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In JavaScript can I make a “click” event fire programmatically for a file input element?
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For those who understand that you have to overlay an invisible form over the link, but are too lazy to write, I wrote it for you. Well, for me, but might as well share. Comments are welcome.
HTML (Somewhere):
<a id="fileLink" href="javascript:fileBrowse();" onmouseover="fileMove();"...
Pointers in Python?
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I want form.data['field'] and
form.field.value to always have the
same value
This is feasible, because it involves decorated names and indexing -- i.e., completely different constructs from the barenames a and b that you're as...