Changeset 7921 for main/waeup.kofa/trunk


Ignore:
Timestamp:
20 Mar 2012, 00:51:19 (13 years ago)
Author:
uli
Message:

Add string converters for result entries.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • main/waeup.kofa/trunk/src/waeup/kofa/schoolgrades.py

    r7819 r7921  
    3535    grade = FieldProperty(IResultEntry['grade'])
    3636
     37    def __init__(self, subject=None, grade=None):
     38        super(ResultEntry, self).__init__()
     39        if subject is not None:
     40            self.subject = subject
     41        if grade is not None:
     42            self.grade = grade
     43        return
     44
     45    def to_string(self):
     46        """A string representation that can be used in imports/export.
     47
     48        Returned is a unicode string of format ``(u'<SUBJ>',u'<GRADE>')``.
     49        """
     50        return unicode((self.subject, self.grade))
     51
     52    @classmethod
     53    def from_string(cls, string):
     54        """Create new ResultEntry instance based on `string`.
     55
     56        The string is expected to be in format as delivered by
     57        meth:`to_string`.
     58
     59        This is a classmethod. This means, you normally will call::
     60
     61          ResultEntry.from_string(mystring)
     62
     63        i.e. use the `ResultEntry` class, not an instance thereof.
     64        """
     65        string = string.replace("u''", "None")
     66        subject, grade = eval(string)
     67        return cls(subject, grade)
     68
    3769class ResultEntryField(Object):
    3870    """A zope.schema-like field for usage in interfaces.
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