A:
DirectX 9.0 is not available for Vista or Windows 7, it's only available for Windows XP or later.
You can try changing your compatibility mode to XP (or later) but this will disable some features that are only available in Windows 7 and later.
Long-range order in anisotropic superconducting quantum flux lattices.
Anisotropic superconducting quantum flux lattices, consisting of a planar mesh of rf-SQUID loops with Cu-Ba-Cu Josephson junctions between them, are fabricated on single crystalline MgB2. The magnetic flux lattices exhibit a clear crystalline structure at the microscopic scale. We find that the flux lattice orientation is governed by the geometry of the Josephson junctions and is governed by the crystalline orientation of the substrate. We also demonstrate that the flux lattice orientation can be tailored by adjusting the applied current bias.Q:
Easiest way to validate email fields in a Django form?
What's the easiest way to validate email fields in a Django form?
A:
I use something like this.
def clean_email(self):
email = self.cleaned_data.get('email', None)
if not email or not re.match(r'^[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z]{2,4}$', email):
raise forms.ValidationError(_('Invalid email address'))
return email
I also have a function that validates that email address is set in the form.
def clean_email_address(self):
email = self.cleaned_data.get('email_address', None)
if not email or not re.match(r'^[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z]{2,4}$', email):
raise forms.ValidationError(_('Invalid email address'))
return email
A:
A simple way to do this is to override the form field's clean() method:
class EmailField( ac619d1d87
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