Skip to Content
Odoo Menu
  • Sign in
  • Try it free
  • Apps
    Finance
    • Accounting
    • Invoicing
    • Expenses
    • Spreadsheet (BI)
    • Documents
    • Sign
    Sales
    • CRM
    • Sales
    • POS Shop
    • POS Restaurant
    • Subscriptions
    • Rental
    Websites
    • Website Builder
    • eCommerce
    • Blog
    • Forum
    • Live Chat
    • eLearning
    Supply Chain
    • Inventory
    • Manufacturing
    • PLM
    • Purchase
    • Maintenance
    • Quality
    Human Resources
    • Employees
    • Recruitment
    • Time Off
    • Appraisals
    • Referrals
    • Fleet
    Marketing
    • Social Marketing
    • Email Marketing
    • SMS Marketing
    • Events
    • Marketing Automation
    • Surveys
    Services
    • Project
    • Timesheets
    • Field Service
    • Helpdesk
    • Planning
    • Appointments
    Productivity
    • Discuss
    • Approvals
    • IoT
    • VoIP
    • Knowledge
    • WhatsApp
    Third party apps Odoo Studio Odoo Cloud Platform
  • Industries
    Retail
    • Book Store
    • Clothing Store
    • Furniture Store
    • Grocery Store
    • Hardware Store
    • Toy Store
    Food & Hospitality
    • Bar and Pub
    • Restaurant
    • Fast Food
    • Guest House
    • Beverage Distributor
    • Hotel
    Real Estate
    • Real Estate Agency
    • Architecture Firm
    • Construction
    • Estate Management
    • Gardening
    • Property Owner Association
    Consulting
    • Accounting Firm
    • Odoo Partner
    • Marketing Agency
    • Law firm
    • Talent Acquisition
    • Audit & Certification
    Manufacturing
    • Textile
    • Metal
    • Furnitures
    • Food
    • Brewery
    • Corporate Gifts
    Health & Fitness
    • Sports Club
    • Eyewear Store
    • Fitness Center
    • Wellness Practitioners
    • Pharmacy
    • Hair Salon
    Trades
    • Handyman
    • IT Hardware & Support
    • Solar Energy Systems
    • Shoe Maker
    • Cleaning Services
    • HVAC Services
    Others
    • Nonprofit Organization
    • Environmental Agency
    • Billboard Rental
    • Photography
    • Bike Leasing
    • Software Reseller
    Browse all Industries
  • Community
    Learn
    • Tutorials
    • Documentation
    • Certifications
    • Training
    • Blog
    • Podcast
    Empower Education
    • Education Program
    • Scale Up! Business Game
    • Visit Odoo
    Get the Software
    • Download
    • Compare Editions
    • Releases
    Collaborate
    • Github
    • Forum
    • Events
    • Translations
    • Become a Partner
    • Services for Partners
    • Register your Accounting Firm
    Get Services
    • Find a Partner
    • Find an Accountant
    • Meet an advisor
    • Implementation Services
    • Customer References
    • Support
    • Upgrades
    Github Youtube Twitter Linkedin Instagram Facebook Spotify
    +1 (650) 691-3277
    Get a demo
  • Pricing
  • Help

Odoo is the world's easiest all-in-one management software.
It includes hundreds of business apps:

  • CRM
  • e-Commerce
  • Accounting
  • Inventory
  • PoS
  • Project
  • MRP
All apps
You need to be registered to interact with the community.
All Posts People Badges
Tags (View all)
odoo accounting v14 pos v15
About this forum
You need to be registered to interact with the community.
All Posts People Badges
Tags (View all)
odoo accounting v14 pos v15
About this forum
Help

Create extra field on many2many relationship

Subscribe

Get notified when there's activity on this post

This question has been flagged
fields
2 Replies
16267 Views
Avatar
Rafael

Hello everyone. Let's see if someone can help me. I created a new class called "Course". I created Many2Many relationship between "course" and "Partner". It works fine. I can add to a partner several courses. But I need to add a field to the form, so that when you would add a course to a partner, you ask an expiration date, to take partners_courses_rel Table 3 courses, the id of the partner, the id of the course, and the expiration date . Someone can tell me how to add the date field in the relationship? Thank you very much.

1
Avatar
Discard
OpenERP Vietnam

Hi Rafael, instead of do that, you can create new object which have 2 field (contain object "cource" and "partner"), a field date, a field many2one into curent form (object contain your many2many field). Then you add a field one2many (reference new object) into current form.

Rafael
Author

Ok. I did as I have you told, but now I have a problem. I created the relationship between courses and courses_partners, and between courses_partners and partners, and I are the two date fields that I needed, but now when I get the drop down list to choose a course and choose one, then I will choose another, I reappears in the dropdown list the course he had chosen earlier. Would need to remove from the list the courses that I have selected. How could I?

Avatar
Brett Lehrer
Best Answer

OpenERP Vietnam is correct. Relational tables for many2many fields are handled entirely by the ORM in the background, you cannot just add another column. Make a new object, link the two, and add a field for the expiration.

1
Avatar
Discard
Avatar
Rafael
Author Best Answer

Ok. So as I have understood, now I have this:

Courses ----m2m----> Partners

and I think I have to do this:

Courses ----o2m----> Courses_partners ----m2o---->Partners

Is correct? Thank you very much for helping me because I'm so lost...!

0
Avatar
Discard
OpenERP Vietnam

Hi Rafael, it is correct.

Rafael
Author

Ok. I did as I have you told, but now I have a problem. I created the relationship between courses and courses_partners, and between courses_partners and partners, and I are the two date fields that I needed, but now when I get the drop down list to choose a course and choose one, then I will choose another, I reappears in the dropdown list the course he had chosen earlier. Would need to remove from the list the courses that I have selected. How could I?

Enjoying the discussion? Don't just read, join in!

Create an account today to enjoy exclusive features and engage with our awesome community!

Sign up
Related Posts Replies Views Activity
I cannot see custom field in lead form
fields
Avatar
Avatar
Avatar
2
Dec 25
3618
trying to match fields for products
fields
Avatar
Avatar
Avatar
2
Dec 25
187
How to display a red * for required fields
fields
Avatar
Avatar
Avatar
Avatar
3
May 25
3612
How to display a red * for required fields
fields
Avatar
Avatar
1
Apr 25
2531
one2one relational field Solved
fields
Avatar
Avatar
Avatar
Avatar
3
Sep 24
16403
Community
  • Tutorials
  • Documentation
  • Forum
Open Source
  • Download
  • Github
  • Runbot
  • Translations
Services
  • Odoo.sh Hosting
  • Support
  • Upgrade
  • Custom Developments
  • Education
  • Find an Accountant
  • Find a Partner
  • Become a Partner
About us
  • Our company
  • Brand Assets
  • Contact us
  • Jobs
  • Events
  • Podcast
  • Blog
  • Customers
  • Legal • Privacy
  • Security
الْعَرَبيّة Català 简体中文 繁體中文 (台灣) Čeština Dansk Nederlands English Suomi Français Deutsch हिंदी Bahasa Indonesia Italiano 日本語 한국어 (KR) Lietuvių kalba Język polski Português (BR) română русский язык Slovenský jazyk slovenščina Español (América Latina) Español ภาษาไทย Türkçe українська Tiếng Việt

Odoo is a suite of open source business apps that cover all your company needs: CRM, eCommerce, accounting, inventory, point of sale, project management, etc.

Odoo's unique value proposition is to be at the same time very easy to use and fully integrated.

Website made with

Odoo Experience on YouTube

1. Use the live chat to ask your questions.
2. The operator answers within a few minutes.

Live support on Youtube
Watch now