Displaying 2 results from an estimated 2 matches for "associaiton".
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assocation
2007 Jun 23
3
has_and_belongs_to_many and dynamic find
...ser.roles << Role.find_by_name( ''registered'' )
# But this this is Fine !
@user.roles << Role.find( :first, :conditions => [''name = ?'',
''registered''] )
When using the usal find( :first) style everythign is sweet,
associaiton is built and appears in DB.
However when using the find_by_name association_proxy.rb throws an
exception but the error I get is somewhat cryptic as it appears as if
the result of find_by_name is a ''Role'' as expected :
"Role expected, got Role"
Chances are I''...
2012 May 15
9
help
1. Emma is performing an experiment that requires individual handling of some animals. The sizes of the animals are lognormally distributed: The natural logarithms of their sizes has a normal distribution with mean 3 and standard deviation 0.4. The time (in minutes) it takes to handle each animal is given by
10 + s · 1.5 + eε for animals with s ≤ 20 20 + s · 0.8 + eε for animals with s > 20