reporting-engine/py3o_parser.py

from openerp.report.report_sxw import report_sxw, rml_parse
from openerp import registry


_extender_functions = {}


def py3o_report_extender(report_name):
    """
    A decorator to define function to extend the context sent to a template.
    This will be called at the creation of the report.
    The following arguments will be passed to it:
        - pool: the model pool
        - cr: the database cursor
        - uid: the id of the user that call the renderer
        - localcontext: The context that will be passed to the report engine
        - context: the Odoo context

    Method copied from CampToCamp report_webkit module.

    :param report_name: xml id of the report
    :return:
    """
    def fct1(fct):
        lst = _extender_functions.get(report_name)
        if not lst:
            lst = []
            _extender_functions[report_name] = lst
        lst.append(fct)
        return fct
    return fct1


class Py3oParser(report_sxw):
    """Custom class that use Py3o to render libroffice reports.
        Code partially taken from CampToCamp."""

    def __init__(self, name, table, rml=False, parser=rml_parse,
                 header=False, store=False, register=True):
        self.localcontext = {}
        super(Py3oParser, self).__init__(
            name, table, rml=rml, parser=parser,
            header=header, store=store, register=register
        )

    def create_single_pdf(self, cr, uid, ids, data, report_xml, context=None):
        """ Overide this function to generate our py3o report
        """
        if report_xml.report_type != 'py3o':
            return super(Py3oParser, self).create_single_pdf(
                cr, uid, ids, data, report_xml, context=context
            )

        pool = registry(cr.dbname)
        model_data_ids = pool['ir.model.data'].search(
            cr, uid, [
                ('model', '=', 'ir.actions.report.xml'),
                ('res_id', '=', report_xml.id),
            ]
        )

        xml_id = None
        if model_data_ids:
            model_data = pool['ir.model.data'].browse(
                cr, uid, model_data_ids[0], context=context
            )
            xml_id = '%s,%s' % (model_data.module, model_data.name)

        parser_instance = self.parser(cr, uid, self.name2, context=context)
        parser_instance.set_context(
            self.getObjects(cr, uid, ids, context),
            data, ids, report_xml.report_type
        )

        if xml_id in _extender_functions:
            for fct in _extender_functions[xml_id]:
                pass

    def create(self, cr, uid, ids, data, context=None):
        """ Override this function to handle our py3o report
        """
        pool = registry(cr.dbname)
        ir_action_report_obj = pool['ir.actions.report.xml']
        report_xml_ids = ir_action_report_obj.search(
            cr, uid, [('report_name', '=', self.name[7:])], context=context
        )
        if not report_xml_ids:
            return super(Py3oParser, self).create(
                cr, uid, ids, data, context=context
            )

        report_xml = ir_action_report_obj.browse(
            cr, uid, report_xml_ids[0], context=context
        )

        result = self.create_source_pdf(
            cr, uid, ids, data, report_xml, context
        )

        if not result:
            return False, False
        return result