Added autocompletion on fields.Char

CHANGELOG

@@ -1,3 +1,4 @@
+* Added autocompletion on fields.Char
 * Remove ir.default
 * Add type, last user and last modification on ir.attachment
 * Rename datas into data on ir.attachment

doc/ref/models/fields.rst

@@ -198,6 +198,17 @@ A single line string field.
     If true, the value of the field is translatable. The value readed and
     stored will depend on the ``language`` defined in the context.
 
+.. attribute:: Char.autocomplete
+
+    A list of field names. If this attribute is set, the client will call the
+    method ``autocomplete_<field name>`` of the model when the user changes one
+    of those field value. The method signature is::
+
+        autocomplete_<field name>(values)
+
+    This method must return a list of string that will populate the
+    ComboboxEntry in the client.
+
 .. warning::
     Note that you may need to set :attribute:`Fields.loading` to ``lazy``
     when :attribute:`Char.translate` is ``True``.

trytond/ir/ui/form.rnc

@@ -104,8 +104,6 @@ attlist.field &= attribute readonly { "0" | "1" }?
 attlist.field &=
   [ a:defaultValue = "0" ] attribute tree_invisible { "0" | "1" }?
 attlist.field &= attribute mode { text }?
-attlist.field &=
-  [ a:defaultValue = "0" ] attribute completion { "0" | "1" }?
 attlist.field &=
   [ a:defaultValue = "0" ] attribute invisible { "0" | "1" }?
 attlist.field &= attribute sum { text }?

trytond/ir/ui/form.rng

@@ -369,16 +369,6 @@
       <attribute name="mode"/>
     </optional>
   </define>
-  <define name="attlist.field" combine="interleave">
-    <optional>
-      <attribute name="completion" a:defaultValue="0">
-        <choice>
-          <value>0</value>
-          <value>1</value>
-        </choice>
-      </attribute>
-    </optional>
-  </define>
   <define name="attlist.field" combine="interleave">
     <optional>
       <attribute name="invisible" a:defaultValue="0">

trytond/model/fields/char.py

@@ -3,6 +3,10 @@
 
 from trytond.model.fields.field import Field
 
+def autocomplete_validate(value):
+    if value:
+        assert isinstance(value, list), 'autocomplete must be a list'
+
 
 class Char(Field):
     '''
@@ -13,7 +17,8 @@ class Char(Field):
     def __init__(self, string='', size=None, help='', required=False,
             readonly=False, domain=None, states=None, change_default=False,
             translate=False, select=0, on_change=None, on_change_with=None,
-            depends=None, order_field=None, context=None, loading='eager'):
+            depends=None, order_field=None, context=None, loading='eager',
+            autocomplete=None):
         '''
         :param translate: A boolean. If ``True`` the field is translatable.
         :param size: A integer. If set defines the maximum size of the values.
@@ -24,6 +29,17 @@ class Char(Field):
                 on_change=on_change, on_change_with=on_change_with,
                 depends=depends, order_field=order_field, context=context,
                 loading=loading)
+        self.__autocomplete = None
+        self.autocomplete = autocomplete if autocomplete else None
         self.translate = translate
         self.size = size
     __init__.__doc__ += Field.__init__.__doc__
+
+    def _get_autocomplete(self):
+        return self.__autocomplete
+
+    def _set_autocomplete(self, value):
+        autocomplete_validate(value)
+        self.__autocomplete = value
+
+    autocomplete = property(_get_autocomplete, _set_autocomplete)

trytond/model/model.py

@@ -94,14 +94,12 @@ class Model(WarningErrorMixin):
                     and not isinstance(field.selection, (list, tuple)) \
                     and field.selection not in self._rpc:
                 self._rpc[field.selection] = False
-            if field.on_change:
-                on_change = 'on_change_' + field_name
-                if on_change not in self._rpc:
-                    self._rpc[on_change] = False
-            if field.on_change_with:
-                on_change_with = 'on_change_with_' + field_name
-                if on_change_with not in self._rpc:
-                    self._rpc[on_change_with] = False
+
+            for attribute in ('on_change', 'on_change_with', 'autocomplete'):
+                function_name = '%s_%s' % (attribute, field_name)
+                if (getattr(field, attribute, False)
+                        and callable(getattr(self, function_name, False))):
+                    self._rpc.setdefault(function_name, False)
 
     def __getattr__(self, name):
         # Search if a function exists in inherits parents
@@ -503,6 +501,7 @@ class Model(WarningErrorMixin):
                     'on_change',
                     'add_remove',
                     'on_change_with',
+                    'autocomplete',
                     'sort',
                     'datetime_field',
                     'loading',