[IMP] res_partner: default image and gravatar

Try to find the gravatar of partners based on their email. Better computation
of the default image.

The default image is not computed as a default anymore. Indeed due to the
color of the default avatar it is not possible to know if the user has changed
the partner iamge or not.

An onchange on the email field allow to search for the gravatar. If no image is
given when creating a partner, the values are updated with a default image
coming from the contact type, whether the partner is a company or has a parent
with an image.

Many thanks to Yti and Rim that are waiting for this task to use their fancy
gravatar.

openerp/addons/base/res/res_partner.py

@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+import base64
 import datetime
+import hashlib
 from lxml import etree
 import math
 import pytz
+import urllib2
 import urlparse
 
 import openerp
@@ -14,6 +17,7 @@ from openerp.osv.expression import get_unaccent_wrapper
 from openerp.tools.translate import _
 from openerp.exceptions import UserError
 
+
 ADDRESS_FORMAT_LAYOUTS = {
     '%(city)s %(state_code)s\n%(zip)s': """
         <div class="address_format">
@@ -268,8 +272,7 @@ class res_partner(osv.Model, format_address):
 
     # image: all image fields are base64 encoded and PIL-supported
     image = openerp.fields.Binary("Image", attachment=True,
-        help="This field holds the image used as avatar for this contact, limited to 1024x1024px",
-        default=lambda self: self._get_default_image(False, True))
+        help="This field holds the image used as avatar for this contact, limited to 1024x1024px",)
     image_medium = openerp.fields.Binary("Medium-sized image",
         compute='_compute_images', inverse='_inverse_image_medium', store=True, attachment=True,
         help="Medium-sized image of this contact. It is automatically "\
@@ -301,14 +304,26 @@ class res_partner(osv.Model, format_address):
         return [category_id] if category_id else False
 
     @api.model
-    def _get_default_image(self, is_company, colorize=False):
-        img_path = openerp.modules.get_module_resource(
-            'base', 'static/src/img', 'company_image.png' if is_company else 'avatar.png')
-        with open(img_path, 'rb') as f:
-            image = f.read()
+    def _get_default_image(self, partner_type, is_company, parent_id):
+        colorize, img_path, image = False, False, False
 
-        # colorize user avatars
-        if not is_company:
+        if partner_type in ['contact', 'other'] and parent_id:
+            image = self.browse(parent_id).image.decode('base64')
+
+        if not image and partner_type == 'invoice':
+            img_path = openerp.modules.get_module_resource('base', 'static/src/img', 'money.png')
+        elif not image and partner_type == 'delivery':
+            img_path = openerp.modules.get_module_resource('base', 'static/src/img', 'truck.png')
+        elif not image and is_company:
+            img_path = openerp.modules.get_module_resource('base', 'static/src/img', 'company_image.png')
+        elif not image:
+            img_path = openerp.modules.get_module_resource('base', 'static/src/img', 'avatar.png')
+            colorize = True
+
+        if img_path:
+            with open(img_path, 'rb') as f:
+                image = f.read()
+        if image and colorize:
             image = tools.image_colorize(image)
 
         return tools.image_resize_image_big(image.encode('base64'))
@@ -336,7 +351,6 @@ class res_partner(osv.Model, format_address):
         'is_company': False,
         'company_type': 'person',
         'type': 'contact',
-        'image': False,
     }
 
     _constraints = [
@@ -386,6 +400,11 @@ class res_partner(osv.Model, format_address):
             return {'value': {'country_id': state.country_id.id}}
         return {'value': {}}
 
+    @api.onchange('email')
+    def onchange_email(self):
+        if not self.image and not self.env.context.get('yaml_onchange') and self.email:
+            self.image = self._get_gravatar_image(self.email)
+
     @api.multi
     def on_change_company_type(self, company_type):
         return {'value': {'is_company': company_type == 'company'}}
@@ -545,6 +564,10 @@ class res_partner(osv.Model, format_address):
         # migrating to the new API
         c_type = vals.get('company_type', self._context.get('default_company_type'))
         is_company = vals.get('is_company', self._context.get('default_is_company'))
+        # compute default image in create, because computing gravatar in the onchange
+        # cannot be easily performed if default images are in the way
+        if not vals.get('image'):
+            vals['image'] = self._get_default_image(vals.get('type'), vals.get('is_company'), vals.get('parent_id'))
         if c_type:
             vals['is_company'] = c_type == 'company'
         else:
@@ -704,6 +727,17 @@ class res_partner(osv.Model, format_address):
             return self.name_create(cr, uid, email, context=context)[0]
         return ids[0]
 
+    def _get_gravatar_image(self, email):
+        gravatar_image = False
+        email_hash = hashlib.md5(email.lower()).hexdigest()
+        url = "https://www.gravatar.com/avatar/" + email_hash
+        try:
+            image_content = urllib2.urlopen(url + "?d=404&s=128", timeout=5).read()
+            gravatar_image = base64.b64encode(image_content)
+        except Exception:
+            pass
+        return gravatar_image
+
     def _email_send(self, cr, uid, ids, email_from, subject, body, on_error=None):
         partners = self.browse(cr, uid, ids)
         for partner in partners:

openerp/addons/base/res/res_partner_view.xml

@@ -299,6 +299,7 @@
                                         <field name="supplier" invisible="True"/>
                                         <field name="customer" invisible="True"/>
                                         <field name="lang" invisible="True"/>
+                                        <field name="image" invisible="True"/>
                                     </sheet>
                                 </form>
                             </field>

openerp/tools/yaml_import.py

@@ -348,6 +348,7 @@ class YamlInterpreter(object):
             :return: dictionary mapping the field names and their values, ready to use when calling the create() function
             :rtype: dict
         """
+
         class dotdict(dict):
             """ Dictionary class that allow to access a dictionary value by using '.'. This is needed to eval correctly
                 statements like 'parent.fieldname' in context.
@@ -455,6 +456,7 @@ class YamlInterpreter(object):
 
                     if el.attrib['on_change'] in ('1', 'true'):
                         # New-style on_change
+                        self.context['yaml_onchange'] = True
                         recs = model.browse(self.cr, SUPERUSER_ID, [], self.context)
                         result = recs.onchange(record_dict, field_name, onchange_spec)