Custom Reports

The report model has a defaultget_htmlfunction that looks for a model namedreport.module.report_name. If it exists, it will use it to call the QWeb engine; otherwise a generic function will be used. If you wish to customize your reports by including more things in the template (like records of others models, for example), you can define this model, overwrite the functionrender_htmland pass objects in thedocargsdictionary:

from odoo import api, models

class ParticularReport(models.AbstractModel):
    _name = 'report.module.report_name'
    @api.model
    def render_html(self, docids, data=None):
        report_obj = self.env['report']
        report = report_obj._get_report_from_name('module.report_name')
        docargs = {
            'doc_ids': docids,
            'doc_model': report.model,
            'docs': self,
        }
        return report_obj.render('module.report_name', docargs)