support multiple app and try to confirm with flask-extension guide. and will try to become a registered flask extension

Author: chfw

.moban.d/docs/source/index.rst.jj2

@@ -7,6 +7,9 @@ In your application, you must import it before using it::
 
     import flask_excel as excel
 
+    ...
+    excel.init_excel(app) # required since version 0.0.8
+
 {%endblock%}
 
 {%block quick_start%}

docs/source/index.rst

@@ -10,6 +10,7 @@
 :Source code: http://github.com/pyexcel/Flask-Excel.git
 :Issues: http://github.com/pyexcel/Flask-Excel/issues
 :License: New BSD License
+:Development: |release|
 :Released: |version|
 :Generated: |today|
 
@@ -157,6 +158,9 @@ In your application, you must import it before using it::
 
     import flask_excel as excel
 
+    ...
+    excel.init_excel(app) # required since version 0.0.8
+
 
 Quick start
 --------------------------------------------------------------------------------
@@ -188,6 +192,8 @@ http response. If you would like to give 'tsvz' a go, please change "csv" to
 
 
 
+
+
 Support the project
 -----------------------
 

examples/database_example.py

@@ -7,6 +7,7 @@
 import flask_excel as excel
 
 app = Flask(__name__)
+excel.init_excel(app)
 
 
 @app.route("/upload", methods=['GET', 'POST'])
@@ -29,8 +30,7 @@ def download_file():
 
 from flask.ext.sqlalchemy import SQLAlchemy  # noqa
 from datetime import datetime  # noqa
-# please uncomment the following line if you use pyexcel < 0.2.2
-# import pyexcel.ext.xls
+
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///tmp.db'
 db = SQLAlchemy(app)
 

examples/database_example_formatted.py

@@ -11,7 +11,7 @@
 # import pyexcel.ext.xls
 
 app = Flask(__name__)
-
+excel.init_excel(app)
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///tmp.db'
 db = SQLAlchemy(app)
 

examples/tiny_example.py

@@ -43,4 +43,5 @@ def download_file_named_in_unicode():
 
 # insert database related code here
 if __name__ == "__main__":
+    excel.init_excel(app)
     app.run()

flask_excel/__init__.py

@@ -17,7 +17,7 @@
     from urllib.parse import quote
     _PY_VERSION = 3
 
-from flask import Flask, Request, Response
+from flask import Request, Response
 import pyexcel_webio as webio
 
 
@@ -37,10 +37,6 @@ def get_file_tuple(self, field_name):
         return extension, filehandle
 
 
-# Plug-in the custom request to Flask
-Flask.request_class = ExcelRequest
-
-
 def _make_response(content, content_type, status, file_name=None):
     """
     Custom response function that is called by pyexcel-webio
@@ -57,9 +53,6 @@ def _make_response(content, content_type, status, file_name=None):
     return response
 
 
-webio.ExcelResponse = _make_response
-
-
 from pyexcel_webio import (  # noqa
     make_response,
     make_response_from_array,
@@ -70,3 +63,9 @@ def _make_response(content, content_type, status, file_name=None):
     make_response_from_query_sets,
     make_response_from_tables
 )
+
+
+def init_excel(app):
+    app.request_class = ExcelRequest
+    webio.init_webio(_make_response)
+    return app

tests/testapp.py

@@ -18,6 +18,7 @@
 else:
     app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite://'
 db = SQLAlchemy(app)
+excel.init_excel(app)
 
 
 class Post(db.Model):