Web Form Banner

No new fields.

• get_view(self, view_id=None, view_type='form', **options)
  @api.model

• active Boolean
  default=True
• message Text
  help='Template with ${placeholders}. If not HTML, it will be escaped.' translate=True
• message_is_html Boolean
  help="If checked, 'message' is treated as raw HTML (no escaping). If not checked, the rendered text is escaped and newlines become <br/>." args: 'HTML'
• message_value_code Text
  help='Python expression evaluated server-side. Must return a dict.\nKeys: visible(bool, default True), severity(str), values(dict for ${...} in \nmessage), and/or html(str) to override template rendering.'
• model_id Many2one → ir.model
  ondelete='cascade' required=True args: 'ir.model'
• model_name Char
  readonly=True related='model_id.model' store=True string='Model Name'
• name Char
  required=True
• position Selection
  default='before' help='Where to insert the placeholder relative to the first matched node.' required=True args: [('before', 'Before target'), ('after', 'After target')]
• sequence Integer
  default=10
• severity Selection
  default='danger' help='Default severity level, can be overridden per-record.' required=True string='Default Severity' args: [('info', 'Info'), ('warning', 'Warning'), ('danger', 'Danger')]
• target_xpath Char
  default='//sheet' help='XPath of the node to insert the banner.' args: 'Target XPath'
• trigger_field_ids Many2many → ir.model.fields
  domain="[('model', '=', model_name)]" help='If set, the banner recomputes live when any of these fields change.' string='Trigger Fields' args: 'ir.model.fields', 'web_form_banner_rule_trigger_field_rel'
• view_ids Many2many → ir.ui.view
  domain="[('type', '=', 'form'), ('model', '=', model_name)]" help='Form view where the banner should be injected.' string='Views' args: 'ir.ui.view'

• compute_message(self, rule_id, model, res_id, form_vals=None)
  @api.model
  Return {visible, severity, html} for the given rule and record.