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[V8] Temporary One2Many field

By
Aurélien Rivet
on 6/13/16, 8:35 AM 130 views

Hello,

I want to display for a product.template all the current product.pricelist.item with active product.pricelist.version and sorted by customer. Of course, If there is a product.pricelist.version that applies on the product.category of my product.template, I also want to display it. These informations can only be get using a complex SQL query with multiple joins.

But I want to display the result as a product.pricelist.item in a one2many field of the product.template. The problem is that I want to compute the result each time the product.template form is displayed , so I made a one2many computed field but I don't want to store records in database (it creates duplicates of existing information) at all. Is it possible to make kind of dummies one2Many records just for displaying purpose ?

My current code looks like this, bu of course that not good because it creates too much records in the database.


    pricelist_items = fields.One2many('product.pricelist.item',
                                              compute="_compute_pricelist_items",
                                              store=False
                                    )
    @api.one
    def _compute_pricelist_items(self):
        query = """SELECT distinct
        pli.price_discount, pli.product_tmpl_id, pli.product_id, pli.base,
        pli.price_version_id, pli.min_quantity, pli.categ_id, pa.id
        FROM
        product_pricelist_item as pli
        INNER JOIN product_pricelist_version plv ON pli.price_version_id =
        plv.id
        INNER JOIN product_pricelist pl ON plv.pricelist_id = pl.id
        INNER JOIN ir_property prop ON pl.id = cast(substr(prop.value_reference,
                                                           19, 20) as INTEGER)
        AND prop.name = 'property_product_pricelist'
        INNER JOIN res_partner pa ON cast(substr(prop.res_id, 13, 20) as
                                          INTEGER) = pa.id
        WHERE
        pli.product_tmpl_id = %(product_template_id)s
        UNION
        SELECT distinct
        pli.price_discount, pli.product_tmpl_id, pli.product_id, pli.base,
        pli.price_version_id, pli.min_quantity, pli.categ_id, pa.id
        FROM
        product_template pt
        INNER JOIN product_pricelist_item as pli ON pt.categ_id = pli.categ_id
        INNER JOIN product_pricelist_version plv ON pli.price_version_id =
        plv.id
        INNER JOIN product_pricelist pl ON plv.pricelist_id = pl.id
        INNER JOIN ir_property prop ON pl.id = cast(substr(prop.value_reference,
                                                           19, 20) as INTEGER)
        AND prop.name = 'property_product_pricelist'
        INNER JOIN res_partner pa ON cast(substr(prop.res_id, 13, 20) as
                                          INTEGER) = pa.id
        WHERE
        pt.id = %(product_template_id)s """
        #Query result index
        PRICE_DISCOUNT = 0
        PRODUCT_TMPL_ID = 1
        PRODUCT_ID = 2
        BASE = 3
        PRICE_VERSION_ID = 4
        MIN_QUANTITY = 5
        CATEG_ID = 6
        PARTNER_ID = 7
        self._cr.execute(query, {'product_template_id' : self.id})
        for item in self._cr.fetchall():
            pricelist_version = self.env['product.pricelist.version'].browse(item[PRICE_VERSION_ID])
            if pricelist_version_date_check(pricelist_version) is True:
                vals = {
                'product_tmpl_id': item[PRODUCT_TMPL_ID],
                'product_id': item[PRODUCT_ID],
                'categ_id': item[CATEG_ID],
                'price_discount': item[PRICE_DISCOUNT],
                'min_quantity': item[MIN_QUANTITY],
                'base': item[BASE],
                'customer': item[PARTNER_ID],
                'price_version_id': item[PRICE_VERSION_ID]
                }
                pricelist_items += self.env['product.pricelist.item'].create(vals)
         self.pricelist_items = pricelist_items

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Asked: 6/13/16, 8:35 AM
Seen: 130 times
Last updated: 6/13/16, 8:41 AM