fixed bug in json-rpc webservice reported in https://groups.google.com/d/topic/scrapy-users/qgVBmFybNAQ/discussion. also removed no longer supported 'run' command from extras/scrapy-ws.py

Author: pablohoffman

docs/topics/webservice.rst

@@ -194,7 +194,7 @@ To write a web service resource you should subclass the :class:`JsonResource` or
 
             http://localhost:6080/resource1/
 
-.. class:: scrapy.webservice.JsonRpcResource(target=None)
+.. class:: scrapy.webservice.JsonRpcResource(crawler, target=None)
 
     This is a subclass of :class:`JsonResource` for implementing JSON-RPC
     resources. JSON-RPC resources wrap Python (Scrapy) objects around a

extras/scrapy-ws.py

@@ -20,7 +20,6 @@
 def get_commands():
     return {
         'help': cmd_help,
-        'run': cmd_run,
         'stop': cmd_stop,
         'list-available': cmd_list_available,
         'list-running': cmd_list_running,
@@ -35,10 +34,6 @@ def cmd_help(args, opts):
     for _, func in sorted(get_commands().items()):
         print "  ", func.__doc__
 
-def cmd_run(args, opts):
-    """run <spider_name> - schedule spider for running"""
-    jsonrpc_call(opts, 'crawler/queue', 'append_spider_name', args[0])
-
 def cmd_stop(args, opts):
     """stop <spider> - stop a running spider"""
     jsonrpc_call(opts, 'crawler/engine', 'close_spider', args[0])

scrapy/webservice.py

@@ -44,7 +44,7 @@ def getChild(self, name, txrequest):
         target = self.get_target()
         try:
             newtarget = getattr(target, name)
-            return JsonRpcResource(newtarget)
+            return JsonRpcResource(self.crawler, newtarget)
         except AttributeError:
             return error.NoResource("No such child resource.")