xmlmanager.py 文件源码

def _build_query(self, cls, filters, limit, order_by):
        import types
        if len(filters) > 4:
            raise Exception('Too many filters, max is 4')
        parts = []
        properties = cls.properties(hidden=False)
        for filter, value in filters:
            name, op = filter.strip().split()
            found = False
            for property in properties:
                if property.name == name:
                    found = True
                    if types.TypeType(value) == list:
                        filter_parts = []
                        for val in value:
                            val = self.encode_value(property, val)
                            filter_parts.append("'%s' %s '%s'" % (name, op, val))
                        parts.append("[%s]" % " OR ".join(filter_parts))
                    else:
                        value = self.encode_value(property, value)
                        parts.append("['%s' %s '%s']" % (name, op, value))
            if not found:
                raise Exception('%s is not a valid field' % name)
        if order_by:
            if order_by.startswith("-"):
                key = order_by[1:]
                type = "desc"
            else:
                key = order_by
                type = "asc"
            parts.append("['%s' starts-with ''] sort '%s' %s" % (key, key, type))
        return ' intersection '.join(parts)