Domain for tree view inside in form view

[andres53016]

Hi everyone. I have a form view with a one2many field, which I want to display as a tree (it has parent and childrens). The problem is that it shows me the children fields, inside and outside the parent, if I place the following filter in the field:

filter = [('parent', '=', None)]

It looks correctly, but when I want to load a parent it doesn’t allow me.

Thanks in advance.

[ced (Cédric Krier)]

@andres53016

The problem is that it shows me the children fields, inside and outside the parent

If they are linked to the One2Many field, it is normal.
Trees inside One2Many are odds.

@andres53016

if I place the following filter in the field:

filter = [('parent', '=', None)]

It is a way but I’m not sure that when you add a children to the tree it will be linked to the One2Many.

@andres53016

It looks correctly, but when I want to load a parent it doesn’t allow me.

What do you mean by “load a parent”? and “not allow me”?

[andres53016]

Thank you for the quick response. The code is as follows:

class ConstructionWork(ModelSQL, ModelView):
    'ConstructionWork'
    __name__ = 'construction_work.work'
    #other fields here
    lines = fields.One2Many('construction_work.line', 'construction_work', 'Lines', states={
        'readonly': Eval('work_state') != 'draft',
            },
        filter=[('parent', '=', None)],
        depends=['work_state'])
class ConstructionWorkLine(sequence_ordered(), ModelSQL, ModelView):
    'construction work line'
    __name__ = 'construction_work.line'
    construction_work = fields.Many2One('construction_work.work', 'ConstructionWork', ondelete='CASCADE',
        select=True, required=True)
    type = fields.Selection([
        ('line', 'Line'),
        ('section', 'Section'),
        ], 'Type', select=True, required=True)
    #other fields here
    parent = fields.Many2One(
        'construction_work.line', "Parent", select=True)
    childs = fields.One2Many(
        'construction_work.line', 'parent', string="Children")

The idea is to create sections where inside these I have the lines.

@ced

What do you mean by “load a parent”? and “not allow me”?

I mean I can’t select any line as a parent to a new line.

[ced (Cédric Krier)]

@andres53016

The idea is to create sections where inside these I have the lines.

Will it not be simpler to use flat list but ordered with sequence (like the sale with title and subtotal)?

@andres53016

I mean I can’t select any line as a parent to a new line.

Of course because you put a filter that says the parent must be always None.
You will only be able to create children from the children One2Many in the form view of the line.

[andres53016]

Thanks for the repply.

@ced

Will it not be simpler to use flat list but ordered with sequence (like the sale with title and subtotal)?

That is a simple solution, but the idea is to have sections.

@ced

You will only be able to create children from the children One2Many in the form view of the line.

How can I make it appear to add the existing records, in the One2Many form of the child, as in the invoice lines.

[ced (Cédric Krier)]

@andres53016

That is a simple solution, but the idea is to have sections.

Sections can just be convention like in sale.

@andres53016

How can I make it appear to add the existing records, in the One2Many form of the child, as in the invoice lines.

I guess you want to move an existing top level line under another one. For that you need to activate the drag and drop feature. This activated by setting a sequence attribute on the tree view.

[andres53016]

@ced

I guess you want to move an existing top level line under another one. For that you need to activate the drag and drop feature. This activated by setting a sequence attribute on the tree view.

Thank you very much! Dragging and dropping one line on top of the other allows me to create children.