force lowercase (on domain) when saving urls

[heysamtexas]

override the save() method on the model to force lowercase

then perhaps for the sake of learning make a custom migration which does the same

[heysamtexas]

this is incorrect. only the domain should be lowercase.

in any case (no pun intended), the uniqueness should only be on an index based on the lowercase-ness of everthing. I know postgres can do it, but I am not sure if the djano orm can handle that.

[heysamtexas]

Use postgres model field type CIText and call it done