mv column encoder into plotly json encoder

Author: chriddyp

plotly/grid_objs/__init__.py

@@ -6,4 +6,3 @@
 
 
 from . grid_objs import Grid, Column
-from . import grid_objs_tools

plotly/grid_objs/grid_objs.py

@@ -7,7 +7,7 @@
 import json
 from collections import MutableSequence
 from plotly import exceptions
-from plotly import utils
+import plotly
 
 
 class Column(object):
@@ -21,7 +21,7 @@ def __init__(self, data, name):
 
     def __str__(self):
         max_chars = 10
-        jdata = json.dumps(self.data)
+        jdata = json.dumps(self.data, cls=plotly.utils._plotlyJSONEncoder)
         if len(jdata) > max_chars:
             data_string = jdata[:max_chars] + "...]"
         else:
@@ -30,14 +30,13 @@ def __str__(self):
         return string.format(name=self.name, data=data_string, id=self.id)
 
     def __repr__(self):
-        return ('Column("{}", {})'
-                .format(data=self.data, name=self.name))
+        return  'Column("{}", {})'.format(self.data, self.name)
 
 
 class Grid(MutableSequence):
     def __init__(self, iterable_of_columns):
         column_names = [column.name for column in iterable_of_columns]
-        duplicate_name = utils.get_first_duplicate(column_names)
+        duplicate_name = plotly.utils.get_first_duplicate(column_names)
         if duplicate_name:
             err = exceptions.NON_UNIQUE_COLUMN_MESSAGE.format(duplicate_name)
             raise exceptions.InputError(err)

plotly/plotly/plotly.py

@@ -26,7 +26,6 @@
 from urlparse import urlparse
 
 from plotly.plotly import chunked_requests
-from plotly.grid_objs.grid_objs_tools import ColumnJSONEncoder
 from plotly import utils
 from plotly import tools
 from plotly import exceptions
@@ -748,7 +747,7 @@ def append_columns(cls, columns, grid=None, grid_url=None):
             raise exceptions.InputError(err)
 
         payload = {
-            'cols': json.dumps(columns, cls=ColumnJSONEncoder)
+            'cols': json.dumps(columns, cls=utils._plotlyJSONEncoder)
         }
 
         api_url = _api_v2.api_url('grids')+'/{grid_id}/col'.format(grid_id=grid_id)

plotly/utils.py

@@ -12,6 +12,8 @@
 import threading
 import re
 
+import grid_objs
+
 ### incase people are using threading, we lock file reads
 lock = threading.Lock()
 
@@ -126,12 +128,20 @@ def sageJSONEncoder(self, obj):
             pass
         return None
 
+    def ColumnJSONEncoder(self, obj):
+        if isinstance(obj, grid_objs.Column):
+            return {'name': obj.name, 'data': obj.data}
+        else:
+            return None
+
+
     def default(self, obj):
         try:
             return json.dumps(obj)
         except TypeError as e:
             encoders = (self.datetimeJSONEncoder, self.numpyJSONEncoder,
-                        self.pandasJSONEncoder, self.sageJSONEncoder)
+                        self.pandasJSONEncoder, self.ColumnJSONEncoder,
+                        self.sageJSONEncoder)
             for encoder in encoders:
                 s = encoder(obj)
                 if s is not None: