[MIG] pos_default_empty_image: Migrate to 10.0

pos_default_empty_image/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :alt: License: AGPL-3
+
+=======================
+POS Default Empty Image
+=======================
+
+In the point of sale, trying to load known inexistant images 
+is a waste of time.
+
+
+When you have 8000 products in your Point of Sale and most of them 
+don't have images, you are happy to save thousands of useless requests:
+the POS load way faster.
+
+Technical information
+=====================
+
+Each time the pos instantiate a product, it will add an
+
+    <img src="'/web/binary/image?model=product.product&field=image_medium&id='+product.id;" />
+
+The browser will trigger as many requests than there is different url.
+
+
+If you have many products, the browser will soon reach his limit of 
+network connections to Odoo server and will wait for free slots instead of 
+loading other valuable contents. Then the POS is then very slow to work with.
+
+
+This module adds a field _has_image_ in product.template and will 
+change the product image url to his default placeholder directly in the POS.
+
+Because there is only one url for this placeholder, 
+you will have only one request for all the products with no images.
+
+
+Indeed, if the product has an image, it will load normally.
+
+
+Known issues
+============
+
+
+Updates
+=======
+
+* Feb 2016 : First version
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/web/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed feedback `here <https://github.com/OCA/web/issues/new?body=module:%20pos_default_empty_image%0Aversion:%200.1%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+
+Credits
+=======
+
+Contributors
+------------
+
+* Hparfr <https://github.com/hparfr> `Akretion <https://akretion.com>`_
+* Sylvain LE GAL <https://twitter.com/legalsylvain>
+
+See also this module `pos_improve_images from GRAP 
+<https://github.com/grap/odoo-addons-grap/tree/7.0/pos_improve_images>`_ for OpenERP 7.
+
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit http://odoo-community.org.

pos_default_empty_image/__init__.py

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+from . import models

pos_default_empty_image/__manifest__.py

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+# -*- coding: utf-8 -*-
+# © <2015> <Akretion, GRAP, OCA>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+{
+    'name': 'POS Default empty image',
+    'version': '10.0.0.1.0',
+    'category': 'Point Of Sale',
+    'summary': 'Optimise load time for products with no image',
+    'author': "Akretion, GRAP, Odoo Community Association (OCA)",
+    'website': "https://akretion.com",
+    'license': 'AGPL-3',
+    'depends': ['point_of_sale'],
+    'data': ['view/view.xml'],
+    'qweb': [],
+}

pos_default_empty_image/models/__init__.py

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+from . import product

pos_default_empty_image/models/product.py

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+# -*- coding: utf-8 -*-
+# © <2015> <Akretion, GRAP, OCA>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import models, fields, api
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    @api.multi
+    def _get_has_image(self):
+        self.ensure_one()
+        self.has_image = self.image is not False
+
+    has_image = fields.Boolean(compute='_get_has_image', string='Has Image')

pos_default_empty_image/static/src/js/pos_default_empty_image.js

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+odoo.define('pos_default_empty_image', function (require) {
+"use strict";
+
+    var models = require('point_of_sale.models');
+    var screens = require('point_of_sale.screens');
+
+    //don't try to get an image if we know the product ain't one
+    var ProductListImageWidget = screens.ProductListWidget.include({
+        get_product_image_url: function(product){
+            if (product.has_image)
+                return this._super(product);
+
+            return '/web/static/src/img/placeholder.png';
+        }
+    });
+
+    var _super_posmodel = models.PosModel.prototype;
+    models.PosModel = models.PosModel.extend({
+        initialize: function (session, attributes) {
+            var product_model = _.find(this.models, function(model){ return model.model === 'product.product'; });
+            product_model.fields.push('has_image');
+
+            return _super_posmodel.initialize.call(this, session, attributes);
+        },
+    });
+});

pos_default_empty_image/view/view.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <template id="assets_backend" name="pos_default_empty_image assets" inherit_id="point_of_sale.assets">
+        <xpath expr="." position="inside">
+            <script type="text/javascript" src="/pos_default_empty_image/static/src/js/pos_default_empty_image.js"></script>
+        </xpath>
+    </template>
+</odoo>