[gen] Moved action-related stuff from mixins/__init__.py to field/action.py.

fields/action.py

@@ -15,6 +15,7 @@
 # Appy. If not, see <http://www.gnu.org/licenses/>.
 
 # ------------------------------------------------------------------------------
+import os.path
 from appy.fields import Field
 from appy.px import Px
 from appy.shared import utils as sutils
@@ -26,11 +27,10 @@ class Action(Field):
 
     # PX for viewing the Action button.
     pxView = pxCell = Px('''
-     <form name="executeAppyAction"
-           var="formId='%s_%s_form' % (zobj.UID(), name);
+     <form var="formId='%s_%s_form' % (zobj.id, name);
                 label=_(field.labelId)"
            id=":formId" action=":ztool.absolute_url() + '/do'">
-      <input type="hidden" name="action" value="ExecuteAppyAction"/>
+      <input type="hidden" name="action" value="ExecuteAction"/>
       <input type="hidden" name="objectUid" value=":zobj.id"/>
       <input type="hidden" name="fieldName" value=":name"/>
       <input if="field.confirm" type="button" class="button"
@@ -62,8 +62,6 @@ class Action(Field):
         #    message about execution of the action;
         #  * 'file' means that the result is the binary content of a file that
         #    the user will download.
-        #  * 'filetmp' is similar to file, but the file is a temp file and Appy
-        #    will delete it as soon as it will be served to the browser.
         #  * 'redirect' means that the action will lead to the user being
         #    redirected to some other page.
         self.result = result
@@ -107,6 +105,38 @@ class Action(Field):
         return res
 
     def isShowable(self, obj, layoutType):
-        if layoutType == 'edit': return False
-        else: return Field.isShowable(self, obj, layoutType)
+        if layoutType == 'edit': return
+        return Field.isShowable(self, obj, layoutType)
+
+    def onUiRequest(self, obj, rq):
+        '''This method is called when a user triggers the execution of this
+           action from the user interface.'''
+        # Execute the action (method __call__).
+        actionRes = self(obj.appy())
+        parent = obj.getParentNode()
+        parentAq = getattr(parent, 'aq_base', parent)
+        if not hasattr(parentAq, obj.id):
+            # The action has led to obj's deletion.
+            obj.reindex()
+        # Unwrap action results.
+        successfull, msg = actionRes
+        if not msg:
+            # Use the default i18n messages.
+            suffix = successfull and 'done' or 'ko'
+            msg = obj.translate('action_%s' % suffix)
+        if (self.result == 'computation') or not successfull:
+            obj.say(msg)
+            return obj.goto(obj.getUrl(rq['HTTP_REFERER']))
+        elif self.result == 'file':
+            # msg does not contain a message, but a file instance.
+            response = rq.RESPONSE
+            response.setHeader('Content-Type', sutils.getMimeType(msg.name))
+            response.setHeader('Content-Disposition', 'inline;filename="%s"' %\
+                               os.path.basename(msg.name))
+            response.write(msg.read())
+            msg.close()
+        elif self.result == 'redirect':
+            # msg does not contain a message, but the URL where to redirect
+            # the user.
+            return obj.goto(msg)
 # ------------------------------------------------------------------------------