formdata: improve compatibility of lazy date fields (#25961)

tests/test_formdata.py

@@ -618,7 +618,14 @@ def test_lazy_formdata(pub, variable_test_data):
     assert bool(lazy_formdata.var.boolfield) is False
     assert lazy_formdata.var.boolfield2 == 'True'
     assert bool(lazy_formdata.var.boolfield2) is True
-    assert lazy_formdata.var.datefield == time.strptime('2018-07-31', '%Y-%m-%d')
+    assert lazy_formdata.var.datefield == '2018-07-31'
+    assert lazy_formdata.var.datefield.raw == time.strptime('2018-07-31', '%Y-%m-%d')
+    assert lazy_formdata.var.datefield.tm_year == 2018
+    assert lazy_formdata.var.datefield.tm_mon == 7
+    assert lazy_formdata.var.datefield.tm_mday == 31
+    for attr in ('tm_year', 'tm_mon', 'tm_mday', 'tm_hour', 'tm_min', 'tm_sec',
+            'tm_wday', 'tm_yday'):
+        getattr(lazy_formdata.var.datefield, attr)
     assert lazy_formdata.var.itemsfield == 'aa, ac'
     assert 'aa' in lazy_formdata.var.itemsfield  # taken as a list
     assert 'aa,' not in lazy_formdata.var.itemsfield  # not as a string
@@ -689,3 +696,23 @@ def test_lazy_templates(pub, variable_test_data):
 
     tmpl = Template('{{form_user_name_identifier_0}}')
     assert tmpl.render(context) == pub.user_class.select()[0].name_identifiers[0]
+
+def test_form_digest_date(pub):
+    formdef = FormDef()
+    formdef.name = 'foobar'
+    formdef.url_name = 'foobar'
+    formdef.fields = [fields.DateField(id='0', label='date', varname='date')]
+    formdef.digest_template = 'plop {{ form_var_date }} plop'
+    formdef.store()
+
+    formdata = formdef.data_class()()
+    formdata.data = {'0': time.strptime('2015-05-12', '%Y-%m-%d')}
+    formdata.store()
+    assert formdef.data_class().get(formdata.id).digest == 'plop 2015-05-12 plop'
+
+    pub.cfg['language'] = {'language': 'fr'}
+    pub.write_cfg()
+    formdata = formdef.data_class()()
+    formdata.data = {'0': time.strptime('2015-05-12', '%Y-%m-%d')}
+    formdata.store()
+    assert formdef.data_class().get(formdata.id).digest == 'plop 12/05/2015 plop'

wcs/variables.py

@@ -306,9 +306,7 @@ class LazyFormDataVar(object):
             raise KeyError(key)
 
         if field.key == 'date':
-            # for backward compatibility with sites using time.struct_time
-            # methods we still have to return a raw value for date fields.
-            return self.data.get(field.id)
+            return LazyFieldVarDate(self.data, field, self.formdata)
 
         return LazyFieldVar(self.data, field, self.formdata)
 
@@ -327,7 +325,7 @@ class LazyFieldVar(object):
 
     @property
     def raw(self):
-        if self.field.store_display_value or self.field.key == 'file':
+        if self.field.store_display_value or self.field.key in ('file', 'date'):
             return self.data.get(self.field.id)
         raise KeyError('raw')
 
@@ -395,6 +393,46 @@ class LazyFieldVar(object):
         raise AssertionError('lazy cannot be pickled')
 
 
+class LazyFieldVarDate(LazyFieldVar):
+    # for backward compatibility with sites using time.struct_time
+    # methods we still have to provide time.struct_time properties.
+
+    def get_raw(self):
+        return self.data.get(self.field.id)
+
+    @property
+    def tm_year(self):
+        return self.get_raw().tm_year
+
+    @property
+    def tm_mon(self):
+        return self.get_raw().tm_mon
+
+    @property
+    def tm_mday(self):
+        return self.get_raw().tm_mday
+
+    @property
+    def tm_hour(self):
+        return self.get_raw().tm_hour
+
+    @property
+    def tm_min(self):
+        return self.get_raw().tm_min
+
+    @property
+    def tm_sec(self):
+        return self.get_raw().tm_sec
+
+    @property
+    def tm_wday(self):
+        return self.get_raw().tm_wday
+
+    @property
+    def tm_yday(self):
+        return self.get_raw().tm_yday
+
+
 class LazyUser(object):
     def __init__(self, user):
         self.user = user