first commit

__init__.py

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+from . import wizard

__manifest__.py

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+# -*- coding: utf-8 -*-
+{
+    'name': 'Survey Attachment Cleanup',
+    'version': '18.0.1.0.0',
+    'summary': 'Batch delete survey image attachments',
+    'category': 'Tools',
+    'author': 'Suherdy Yacob',
+    'depends': ['base', 'survey', 'website'],
+    'data': [
+        'security/ir.model.access.csv',
+        'wizard/sh_survey_attachment_cleanup_wizard_views.xml',
+    ],
+    'installable': True,
+    'application': False,
+    'license': 'LGPL-3',
+}

security/ir.model.access.csv

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+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_sh_survey_attachment_cleanup_wizard,sh.survey.attachment.cleanup.wizard,model_sh_survey_attachment_cleanup_wizard,base.group_user,1,1,1,1

wizard/__init__.py

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+from . import sh_survey_attachment_cleanup_wizard

wizard/sh_survey_attachment_cleanup_wizard.py

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+# -*- coding: utf-8 -*-
+from odoo import api, fields, models
+
+class SurveyAttachmentCleanupWizard(models.TransientModel):
+    _name = 'sh.survey.attachment.cleanup.wizard'
+    _description = 'Survey Attachment Cleanup Wizard'
+
+    website_id = fields.Many2one('website', string="Website")
+    limit = fields.Integer(string="Batch Limit", default=0, help="Limit number of deletions per batch (0 for no limit)")
+    attachment_count = fields.Integer(string="Attachments Found", compute='_compute_attachment_count')
+
+    @api.depends('website_id')
+    def _compute_attachment_count(self):
+        for record in self:
+            domain = [
+                ('answer_type', '=', 'upload_file'),
+            ]
+            
+            # Find all relevant lines first
+            lines = self.env['survey.user_input.line'].search(domain)
+            
+            total_count = 0
+            # Iterate to count attachments
+            # NOTE: this might be slow for huge datasets, but accurate given the m2m structure
+            # To optimize, we could do SQL, but ORM is safer for now given < 15k records
+            
+            # We can't easily search ir.attachment directly because the relationship is via m2m table 
+            # `survey_user_input_line_rel` (or similar, depending on define).
+            # Actually, `value_file_data_ids` is Many2many('ir.attachment')
+            
+            # Let's collect IDs first (limit to reasonable number if performance issue?)
+            # But count needs to be accurate-ish.
+            
+            # Filter attachments
+            # We search ir.attachment directly to find ALL matching files, including orphans.
+            # Criteria: Mimetype JPEG, Website Matches, No Res Model (typical for M2M/Orphans)
+            
+            domain = [
+                ('mimetype', '=', 'image/jpeg'),
+                ('res_model', '=', False),
+                ('res_field', '=', False),
+            ]
+            
+            if record.website_id:
+                domain.append(('website_id', '=', record.website_id.id))
+            
+            # Count directly
+            count = self.env['ir.attachment'].search_count(domain)
+            record.attachment_count = count
+
+    def action_delete_attachments(self):
+        self.ensure_one()
+        
+        domain = [
+            ('mimetype', '=', 'image/jpeg'),
+            ('res_model', '=', False),
+            ('res_field', '=', False),
+        ]
+        
+        if self.website_id:
+            domain.append(('website_id', '=', self.website_id.id))
+            
+        # Search with limit if needed
+        limit = self.limit if self.limit > 0 else None
+        attachments_to_delete = self.env['ir.attachment'].search(domain, limit=limit)
+            
+        return attachments_to_delete.unlink()
+

wizard/sh_survey_attachment_cleanup_wizard_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_sh_survey_attachment_cleanup_wizard_form" model="ir.ui.view">
+        <field name="name">sh.survey.attachment.cleanup.wizard.form</field>
+        <field name="model">sh.survey.attachment.cleanup.wizard</field>
+        <field name="arch" type="xml">
+            <form string="Survey Attachment Cleanup">
+                <group>
+                    <field name="website_id" placeholder="Leave empty for all websites"/>
+                    <field name="limit"/>
+                    <field name="attachment_count" readonly="1"/>
+                </group>
+                <footer>
+                    <button string="Delete Attachments" name="action_delete_attachments" type="object" class="btn-danger" confirm="Are you sure you want to delete these attachments?"/>
+                    <button string="Cancel" class="btn-secondary" special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="action_sh_survey_attachment_cleanup_wizard" model="ir.actions.act_window">
+        <field name="name">Survey Attachment Cleanup</field>
+        <field name="res_model">sh.survey.attachment.cleanup.wizard</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+
+    <menuitem id="menu_sh_survey_attachment_cleanup"
+              name="Attachment Cleanup"
+              parent="survey.menu_surveys"
+              action="action_sh_survey_attachment_cleanup_wizard"
+              sequence="100"/>
+
+</odoo>