raise UserError(_("No inverse field %r found for %r") % (self.inverse_name, self.comodel_name))
odoo.exceptions.UserError: ("No inverse field None found for 'res.sector'", '' )
I'm trying to create a new model and having problems linking it to another model.
You probably declared a One2many field like following:
field_name = fields.One2many('res.sector')
You need to specify the inverse name (mandatory), the name of a Many2one field declared in res.sector that reference the model where you declared the One2many field.
As mentioned above, you need to specify an inverse name on the relation.
For example: (workcenter_id) is the inverse field
equipment_ids = fields.One2many('maintenance.equipment', 'workcenter_id')
Related
How should I get all of the field names from the product.template model and store them in a selection field in a separate model?
Example
Thanks
I manage to fix the issue with the code below, I tried using self in the method get_fields but the following KeyError: product.template occurred so too bypass that I used request instead of self.
The selection field consists of [(product_template_field_name_1, product_template_field_name_string_1),..,(product_template_field_name_n, product_template_field_name_string_n)], n being the number of fields in the product.template model.
from odoo.http import request
def get_fields(self):
fields = [(field, request.env['product.template']._fields[field].string) for field in
request.env["product.template"]._fields]
return fields
field_name = fields.Selection(
selection=lambda self: self.get_fields(),
required=True)
I have a custom object "Car" with a one2many relationship to another object "Trips" which captures the various trips made by the car.I added the trips to the form view of the car so i can see all the trips made by each car. I created a custom many2one field in sale.order called "x_car" related to "Car" and added it to the sale.order form view. Now i want to add a one2many field too, which will show the trips of the car when it is selected in the sale.order form view. How can i achieve that?
I have already tried to create a one2many field in sale.order (trips,car_id) and set related to x_car.trips
I hoped it would pull all the records from Trips based on the selected x_car, but it does not return any data. I know a one2many relationship would typically be based on the object_id (in this case sale_order_id) but is there a way to base it on x_car?
You can use a computed many2many field for such purposes:
class SaleOrder(models.Model):
_inherit = "sale.order"
car_id = fields.Many2one(comodel_name="car")
trip_ids = fields.Many2many(
comodel_name="trip", string="Trips",
compute="_compute_trip_ids")
#api.multi
#api.depends('car_id')
def _compute_trip_ids(self):
for order in self:
order.trip_ids = order.car_id.trip_ids.ids
I bet your field names or a bit off of my example, but i always try to stick to the Odoo guidelines. Just substitute them with your names ;-)
what is related attribute , what it can be used for ? and how to add a related attribute .
I'm trying to add a related field for total amount.
Related Field
In such case we need to take the value from any other table but we already have the reference of that table in our model, in that case we can utilize one functionality with that we can add the multiple fields from the reference table by just having the only one reference field in our model.
One relational field (Many2one) of the source model is mandatory to
have in the destination model to create relational field.
Consider the company_currency_id field from the res.currency model is there in the destination model then you can get the current rate of that currency in your target model.
syntax: v7
_columns = {
'current_rate': fields.related('company_currency_id','rate_silent', type='float', relation='res.currency',digits_compute=dp.get_precision( 'Account'), string='Current Rate', readonly=True),
}
Here,
company_currency_id => the field in the same model through which the new field will be relate,
rate_silent => is the field which you are going to relate with new field, means the field from source model,
relation => is the source model name,
type => is the datatype of the source field
Syntax: v8 and newer version
current_rate = fields.Float(string='Current Rate', related='company_currency_id.rate_silent', store=True, readonly=True)
Note :
Value is available in that field only after you save the record.
When you update value in your newly defined related field it
will be updated in source field as well, though it's always advisable
to set readonly in newly defined field.
In context of Odoo related field means, that its value will be
read from another table (related table) --> store=False
read from another table, but stored in the table its defined on --> store=True
Examples (Odoo V8):
sale.order currency_id: it is persisted in product_pricelist
stock_quant packaging_type_id: it is persisted in product_packaging and stock_quant. Everytime you change the value on product_packinging it will be updated on stock_quant, too, not vice versa.
**Related Field* is used when you wanted to pull a value from another model you can use related field on fields.
Here is an example for you.
order_id = fields.Many2one(comodel_name='sale.order', 'Sale Order')
order_amount = fields.Monetary(string='Order Amount',
store=True,
related='order_id.amount_total')
you must add a Many2one field in the model which relates to the model you want to access a field. in our case model is sale.order.
with the related kwarg you can relate field of the related model defined in the Many2one field. in our case order_id.
Setting the store kwarg will automatically store the value in database. With new API the value of the related field will be automatically updated.(Reference)
Hope this helps!
I have a many2one field like this
state = fields.Many2one ("ags.traffic.operation.state")
state has the following fields
name = fields.Char
sequence = fields.Integer
type = fields.Selection
in my view i have
<field name = "state" widget = "statusbar" clickable = "True" / >
how can i access those fields to set a default value?
if you want to define the field that gets shown in the drop-down in your view in your model define _rec_name this tells odoo to display that field (in a drop down or in a many2many tag field) when a many2one or one2one relationship is created between that model and another model. for example if you want the sequence number to display in the drop down just set
_recname = 'sequence'
but by default odoo checks the model's field and if it finds a name field (just like you have defined in your model). it uses that as the default display name.
if you want to search records in odoo you can use the search method. please see the documentation for more information about the odoo ORM
https://www.odoo.com/documentation/8.0/reference/orm.html#openerp.models.Model.browse
search(args[, offset=0][, limit=None][, order=None][, count=False])
but a typical example is
search_records = self.env['your.model'].search([('id', 'in', ids)])
Odoo do an Auto Populate a Grid when a user Creating a new information with One2many relations fields?
this is my Example Auto Populate
def getCheckListId(self):
self.env.cr.execute("select 1 employee_id,1 PARAM1,1 PARAM2,1 PARAM3,1 PARAM3,1 PARAM4 from hr_employee_checklist ")
checklistTemplates = self.env.cr.fetchall()
return checklistTemplates
And this function will be used as a default in One2ManyFields
employee_checklists = fields.One2many('hr.employee_checklist','employee_id', readonly=False,copy=False, default = getCheckListId)
But I have an error
the error is
AttributeError: 'str' object has no attribute 'iteritems'
Can someone help me with this problem or other ways to populate Grid in Odoo
One2many
One2many field; the value of such a field is the recordset of all the records in comodel_name such that the field inverse_name is equal to the current record.
Parameters
comodel_name -- name of the target model (string)
inverse_name -- name of the inverse Many2one field in comodel_name
(string)
domain -- an optional domain to set on candidate values on the client
side (domain or string)
context -- an optional context to use on the client side when
handling that field (dictionary)
auto_join -- whether JOINs are generated upon search through that
field (boolean, by default False)
limit -- optional limit to use upon read (integer)
So, One2many fields always contains comodel's reference value, you just need to give ids of that relational field, remaining things will maintain by odoo engine it self.
#api.model
def getCheckListId(self):
return self.env['hr.employee.checklist'].search([]).ids