I have to create a form which has 2 fields source and destination . I have
a table Location1 in db.py with source and destination .
I wanted to implement the view such that if i select a source from the drop
down list of source then in destination only those destinations will be in
drop down list whose source in database is the source entered.
Example:
database:
SOURCE - DESTINATION
USA - INDIA
USA - JAPAN
INDIA - CHINA
JAPAN - CHINA
now in views if i select USA in SOURCE from dropdown list
of("USA","INDIA","JAPAN") my destination dropdown list should contain only
("INDIA","JAPAN")
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