Odoo Survey User Input Line Combined Answer Field

compute-field.py

for record in self:
    record['x_answer'] = record.value_text if record.value_text else (record.value_number if record.value_number else (record.value_date if record.value_date else (record.value_suggested.display_name if record.value_suggested else (record.value_free_text if record.value_free_text else (record.value_suggested_row if record.value_suggested_row else '')))))

User Input View.xml

<?xml version="1.0"?>
<form string="Survey User inputs" create="false">
                    <header>
                        <button name="action_survey_resend" string="Send Invitation Again" type="object" class="oe_highlight" attrs="{'invisible': ['|', ('type','=','manually'), ('state', '=', 'done')]}"/>
                        <button name="action_view_answers" states="done" string="Print These Answers" type="object" class="oe_highlight"/>
                        <button name="action_survey_results" string="View Results" type="object"/>
                        <field name="state" widget="statusbar"/>
                    </header>
                    <sheet>
                        <div class="oe_button_box" name="button_box"/>
                        <group col="2">
                            <group>
                                <field name="survey_id"/>
                                <field name="date_create"/>
                                <field name="type"/>
                                <field name="token" groups="base.group_no_one"/>
                            </group>
                            <group>
                                <field name="deadline"/>
                                <field name="partner_id"/>
                                <field name="email" widget="email"/>
                                <field name="test_entry" groups="base.group_no_one"/>
                                <field name="quizz_score" groups="base.group_no_one"/>
                            </group>
                        </group>
                        <field name="user_input_line_ids" mode="tree" attrs="{'readonly': False}">
                            <tree>
                                <field name="page_id"/>
                                <field name="question_id"/>
                                <field name="x_answer"/>
                            </tree>
                        </field>
                    </sheet>
                </form>