fix unicode encode error

api/Dockerfile

@@ -10,7 +10,7 @@ COPY . /data/apps/cmdb
 
 WORKDIR /data/apps/cmdb
 
-RUN yum install -y epel-release \
+RUN yum install -y epel-release && yum clean all\
 	&&  yum install -y python-pip \
     && pip install  --no-cache-dir -r docs/requirements.txt 
 

api/lib/cmdb/const.py

@@ -45,8 +45,8 @@ type_map = {
     'serialize': {
         Attribute.INT: int,
         Attribute.FLOAT: float,
-        Attribute.TEXT: str,
-        Attribute.TIME: str,
+        Attribute.TEXT: lambda x: x if isinstance(x, six.text_type) else str(x),
+        Attribute.TIME: lambda x: x if isinstance(x, six.text_type) else str(x),
         Attribute.DATE: lambda x: x.strftime("%Y-%m-%d"),
         Attribute.DATETIME: lambda x: x.strftime("%Y-%m-%d %H:%M:%S"),
     },

api/models/__init__.py

@@ -3,4 +3,3 @@
 
 from .account import User
 from .cmdb import *
-from .acl import *