[BUGFIX][Processing] Add getParameterDescriptions to R, Model and Scr…

…ipt algo

python/plugins/processing/algs/r/RAlgorithm.py

@@ -431,6 +431,17 @@ def help(self):
         else:
             return False, None
 
+    def getParameterDescriptions(self):
+        descs = {}
+        helpfile = unicode(self.descriptionFile) + '.help'
+        if os.path.exists(helpfile):
+            with open(helpFile) as f:
+                descriptions = json.load(f)
+                for param in self.parameters:
+                    if param.name in descriptions:
+                        descs[param.name] = unicode(descriptions[param.name])
+        return descs
+
     def checkBeforeOpeningParametersDialog(self):
         msg = RUtils.checkRIsInstalled()
         if msg is not None:

python/plugins/processing/modeler/ModelerAlgorithm.py

@@ -533,6 +533,14 @@ def help(self):
         except:
             return False, None
 
+    def getParameterDescriptions(self):
+        descs = {}
+        descriptions = self.helpContent
+        for param in self.parameters:
+            if param.name in descriptions:
+                descs[param.name] = unicode(descriptions[param.name])
+        return descs
+
     def todict(self):
         keys = ["inputs", "group", "name", "algs", "helpContent"]
         return {k: v for k, v in self.__dict__.iteritems() if k in keys}

python/plugins/processing/script/ScriptAlgorithm.py

@@ -330,3 +330,14 @@ def help(self):
             return True, getHtmlFromHelpFile(self, helpfile)
         else:
             return False, None
+
+    def getParameterDescriptions(self):
+        descs = {}
+        helpfile = unicode(self.descriptionFile) + '.help'
+        if os.path.exists(helpfile):
+            with open(helpFile) as f:
+                descriptions = json.load(f)
+                for param in self.parameters:
+                    if param.name in descriptions:
+                        descs[param.name] = unicode(descriptions[param.name])
+        return descs