Hi,

In Odoo 18, your current setup allows only a single on-site report per project, which makes it hard to handle projects lasting multiple days. The clean solution is to create a dedicated Daily Report model and link it to your project with a one-to-many relation. This lets you add as many daily reports as needed, display them in a list if there are several, and still print each report individually.

The first step is to define a new model for daily reports. This model will store the project reference, date, technician, signed status, notes, and any attached photos:

class OnFieldReport(models.Model):

    _name = 'onfield.report'

    _description = 'On Field Daily Report'

    project_id = fields.Many2one('onfield.project', string="Project", required=True, ondelete='cascade')

    date = fields.Date(default=fields.Date.context_today, required=True)

    user_id = fields.Many2one('res.users', string="Technician", default=lambda self: self.env.user)

    signed = fields.Boolean("Signed by Client")

    notes = fields.Text("Report Notes")

    image_ids = fields.Many2many('ir.attachment', string="Photos")

Next, you extend your existing project model with a one-to-many field pointing to the reports:

class OnFieldProject(models.Model):

    _inherit = 'onfield.project'

    report_ids = fields.One2many('onfield.report', 'project_id', string="Daily Reports")

On the project form view, you add a new tab that displays the reports in both list and form view. This allows users to create new reports, quickly see existing ones, and open them individually:

<page string="Daily Reports">

    <field name="report_ids" context="{'default_project_id': active_id}">

        <tree editable="bottom">

            <field name="date"/>

            <field name="user_id"/>

            <field name="signed"/>

        </tree>

        <form>

            <sheet>

                <group>

                    <field name="date"/>

                    <field name="user_id"/>

                    <field name="signed"/>

                </group>

                <group>

                    <field name="notes"/>

                    <field name="image_ids" widget="many2many_binary"/>

                </group>

            </sheet>

        </form>

    </field>

</page>

Finally, you add a QWeb report definition so each daily report can be printed individually:

<report

    id="action_report_onfield_report"

    model="onfield.report"

    string="Daily Report"

    report_type="qweb-pdf"

    name="your_module.onfield_report_template"

    file="your_module.onfield_report_template"

/>

By moving the daily report into its own model and linking it to projects with a one-to-many relation, you can easily support multiple reports per project, keep the project form neat, and allow reports to be printed individually. This design scales well, stays user-friendly, and aligns with Odoo’s best practices for modularity and extensibility.

Hope it helps