4.5.4 Equality, comparisons, in and not in

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4.5.4 Equality, comparisons, `in` and `not in`

When building your qualifiers, you can use the following operators:

'==': equality
'<': less than
'<=': less than, or equal
'>': greater than
'>=': greater than, or equal
'!=': different than
'in': check that the value is in a list (rvalue is a list, not a tuple)
'not in': check that the value is in a list (rvalue is a list, not a tuple)

So, with this qualifier used to fetch Writer objects,

    objects=ec.fetch('Writer', qualifier='age >= 80')

you'll get all the authors who are 80 years old or more.

Note: in and not in operators require that the right value is expressed as a list, and not as a tuple (i.e. surrounded square brackets '[' and ']'). For example:

    objects=ec.fetch('Writer', qualifier='age in [82, 24]')

Comments are welcome: Sebastien Bigaret / Modeling Home Page
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