Ivan Yelizariev
59132ce996
pos_cache is used to speed up opening POS in databases with large number of products. In some cases it's still not enough and thousands of records cannot be cached in a single request, because reading information may take more time than maximum allowed. As a workaround, this commit adds posibility to split request into few small requests. To activate the feature set system parameter ``pos_cache.limit_products_per_request`` to appropriate value depending on your server capacity. --- opw-2439347 closes odoo/odoo#66995 X-original-commit: fe7718d02f7539959616b0e6f56d4354c768339b Signed-off-by: pimodoo <pimodoo@users.noreply.github.com>
92 lines
3.3 KiB
Python
92 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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# Part of Odoo. See LICENSE file for full copyright and licensing details.
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import base64
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import json
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from ast import literal_eval
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from odoo import models, fields, api
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from odoo.tools import date_utils
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class pos_cache(models.Model):
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_name = 'pos.cache'
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_description = 'Point of Sale Cache'
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cache = fields.Binary(attachment=True)
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product_domain = fields.Text(required=True)
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product_fields = fields.Text(required=True)
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config_id = fields.Many2one('pos.config', ondelete='cascade', required=True)
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compute_user_id = fields.Many2one('res.users', 'Cache compute user', required=True)
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@api.model
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def refresh_all_caches(self):
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self.env['pos.cache'].search([]).refresh_cache()
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def refresh_cache(self):
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for cache in self:
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Product = self.env['product.product'].with_user(cache.compute_user_id.id)
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products = Product.search(cache.get_product_domain())
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prod_ctx = products.with_context(pricelist=cache.config_id.pricelist_id.id,
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display_default_code=False, lang=cache.compute_user_id.lang)
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res = prod_ctx.read(cache.get_product_fields())
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cache.write({
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'cache': base64.encodebytes(json.dumps(res, default=date_utils.json_default).encode('utf-8')),
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})
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@api.model
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def get_product_domain(self):
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return literal_eval(self.product_domain)
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@api.model
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def get_product_fields(self):
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return literal_eval(self.product_fields)
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def cache2json(self):
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return json.loads(base64.decodebytes(self.cache).decode('utf-8'))
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class pos_config(models.Model):
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_inherit = 'pos.config'
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@api.depends('cache_ids')
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def _get_oldest_cache_time(self):
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for cache in self:
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pos_cache = self.env['pos.cache']
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oldest_cache = pos_cache.search([('config_id', '=', cache.id)], order='write_date', limit=1)
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cache.oldest_cache_time = oldest_cache.write_date
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cache_ids = fields.One2many('pos.cache', 'config_id')
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oldest_cache_time = fields.Datetime(compute='_get_oldest_cache_time', string='Oldest cache time', readonly=True)
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limit_products_per_request = fields.Integer(compute='_compute_limit_products_per_request')
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def _compute_limit_products_per_request(self):
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limit = self.env['ir.config_parameter'].sudo().get_param('pos_cache.limit_products_per_request', 0)
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self.update({'limit_products_per_request': int(limit)})
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def get_products_from_cache(self, fields, domain):
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fields_str = str(fields)
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domain_str = str(domain)
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pos_cache = self.env['pos.cache']
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cache_for_user = pos_cache.search([
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('id', 'in', self.cache_ids.ids),
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('compute_user_id', '=', self.env.uid),
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('product_domain', '=', domain_str),
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('product_fields', '=', fields_str),
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])
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if not cache_for_user:
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cache_for_user = pos_cache.create({
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'config_id': self.id,
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'product_domain': domain_str,
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'product_fields': fields_str,
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'compute_user_id': self.env.uid
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})
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cache_for_user.refresh_cache()
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return cache_for_user.cache2json()
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def delete_cache(self):
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# throw away the old caches
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self.cache_ids.unlink()
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