FIX #502: Possibility to choose 'no selection' in session log form

Ref #501...may help/fix this...uncertain yet. Need to finish writing the relevant test!

training/tests/pages.py

@@ -40,3 +40,42 @@ class AddQualification(FormPage):
     @property
     def success(self):
         return 'add' not in self.driver.current_url
+
+
+class SessionLog(FormPage):
+    URL_TEMPLATE = 'training/session_log'
+
+    _supervisor_selector = (By.CSS_SELECTOR, 'div#supervisor_group>div.bootstrap-select')
+    _trainees_selector = (By.CSS_SELECTOR, 'div#trainees_group>div.bootstrap-select')
+    _training_started_selector = (By.XPATH, '//div[1]/div/div/form/div[4]/div')
+    _training_complete_selector = (By.XPATH, '//div[1]/div/div/form/div[4]/div')
+    _competency_assessed_selector = (By.XPATH, '//div[1]/div/div/form/div[5]/div')
+
+    form_items = {
+        'date': (regions.DatePicker, (By.ID, 'id_date')),
+        'notes': (regions.TextBox, (By.ID, 'id_notes')),
+    }
+
+    @property
+    def supervisor_selector(self):
+        return regions.BootstrapSelectElement(self, self.find_element(*self._supervisor_selector))
+
+    @property
+    def trainees_selector(self):
+        return regions.BootstrapSelectElement(self, self.find_element(*self._trainees_selector))
+
+    @property
+    def training_started_selector(self):
+        return regions.BootstrapSelectElement(self, self.find_element(*self._training_started_selector))
+
+    @property
+    def training_complete_selector(self):
+        return regions.BootstrapSelectElement(self, self.find_element(*self._training_complete_selector))
+
+    @property
+    def competency_assessed_selector(self):
+        return regions.BootstrapSelectElement(self, self.find_element(*self._competency_assessed_selector))
+
+    @property
+    def success(self):
+        return 'log' not in self.driver.current_url