res.lang: fields, relations and API
The res.lang model ("Languages") is a persistent model declared by the Base module, then extended by 5 other modules. It exposes 20 fields, 14 of them declared directly on the model; 21 fields from other models point to it. Below you will find every field with its technical name, type, label and relations, followed by an Odoo 19 JSON-2 API call.
Model identity
- Technical name
res.lang- Label
- Languages
- Type
- Persistent (models.Model)
- SQL table
res_lang- Origin module
- Base (
base) - Extended by
- http_routing, spreadsheet, survey, website, point_of_sale
- Default order (_order)
active desc,name- Inherits from (mixins)
- pos.load.mixin
Model fields
14 own fields, 0 inherited from mixins and 6 automatic ORM fields. Click a name to get a direct link to that field.
20 of 20 fields shown
| Technical name | Label | Type | Details |
|---|---|---|---|
| active | Active | boolean | |
| code | Locale Code This field is used to set/get locales for user | char | required |
| date_format | Date Format | selection | required Values computed at runtime |
| decimal_point | Decimal Separator | char | required |
| direction | Direction | selection | required Values: |
| flag_image | Image | image | |
| flag_image_url | Flag Image Url | char | computed |
| grouping | Separator Format The International Grouping will represent 123456789 to be 123,456,789.00; The Indian Grouping will represent 123456789 to be 12,34,56,789.00 | selection | required Values: |
| iso_code | ISO code This ISO code is the name of po files to use for translations | char | |
| name | Name | char | required |
| thousands_sep | Thousands Separator | char | |
| time_format | Time Format | selection | required Values: |
| url_code | URL Code The Lang Code displayed in the URL | char | required |
| week_start | First Day of Week | selection | required Values: |
| create_date | Created on | datetime | read-onlyautomatic |
| create_uid | Created by | many2one | read-onlyautomatic |
| display_name | Display Name | char | read-onlycomputedautomatic |
| id | ID | integer | read-onlyautomatic |
| write_date | Last Updated on | datetime | read-onlyautomatic |
| write_uid | Last Updated by | many2one | read-onlyautomatic |
Relations
Models linked from this model
No own relational field.
Fields of other models pointing here
- base.language.install: first_lang_id, lang_ids
- crm.lead: lang_id
- discuss.channel: livechat_lang_id
- im_livechat.report.channel: lang_id
- pos.config: self_ordering_available_language_ids, self_ordering_default_language_id
- product.feed: lang_id, website_lang_ids
- res.config.settings: language_ids, pos_self_ordering_available_language_ids, pos_self_ordering_default_language_id, website_default_lang_id
- res.users: livechat_lang_ids
- res.users.settings: livechat_lang_ids
- survey.survey: lang_ids
- survey.user_input: lang_id
- survey.user_input.line: lang_id
- website: default_lang_id, language_ids
- website.visitor: lang_id
Reading this model through the API
Odoo 19 JSON-2 API call reading the first five records with real fields of the model. Replace the instance, database and API key with your own.
curl -X POST "https://your-instance.odoo.com/json/2/res.lang/search_read" \
-H "Authorization: bearer $ODOO_API_KEY" \
-H "X-Odoo-Database: your-db" \
-H "Content-Type: application/json" \
-d '{"domain":[],"fields":["name","code","date_format","decimal_point","direction"],"limit":5}'import requests
BASE_URL = "https://your-instance.odoo.com/json/2"
headers = {"Authorization": f"bearer {API_KEY}", "X-Odoo-Database": "your-db"}
res = requests.post(
f"{BASE_URL}/res.lang/search_read",
headers=headers,
json={"domain": [], "fields": ["name","code","date_format","decimal_point","direction"], "limit": 5},
)
res.raise_for_status()
print(res.json())- External API access requires Odoo's Custom plan.
- XML-RPC and JSON-RPC will be removed in Odoo 22 (fall 2028): use JSON-2.
- The access rights and record rules of the key's user apply.
Cite this tool
Writing a tutorial, internal documentation or a forum answer? Copy this link to send your readers to the up-to-date reference.
<a href="https://aidoo.ai/en/outils/explorateur-modeles-odoo/res-lang">res.lang (Odoo 19.0)</a>Sources
Data verified on September 23, 2026 · Odoo 19.0 Community
Have an Odoo project, or want to put your ERP to work with AI? Let's talk
Implementation, custom module development, connecting Claude or ChatGPT to your data: tell us about your context and we will reply within 24 business hours.