StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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117 lines
4.2 KiB
117 lines
4.2 KiB
# Copyright (c) 2011-2017, Dan Crosta
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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from flask import abort
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from pymongo import collection
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from pymongo import database
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from pymongo import mongo_client
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class MongoClient(mongo_client.MongoClient):
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"""Wrapper for :class:`~pymongo.mongo_client.MongoClient`.
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Returns instances of Flask-PyMongo
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:class:`~flask_pymongo.wrappers.Database` instead of native PyMongo
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:class:`~pymongo.database.Database` when accessed with dot notation.
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"""
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def __getattr__(self, name): # noqa: D105
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attr = super(MongoClient, self).__getattr__(name)
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if isinstance(attr, database.Database):
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return Database(self, name)
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return attr
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def __getitem__(self, item): # noqa: D105
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attr = super(MongoClient, self).__getitem__(item)
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if isinstance(attr, database.Database):
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return Database(self, item)
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return attr
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class Database(database.Database):
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"""Wrapper for :class:`~pymongo.database.Database`.
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Returns instances of Flask-PyMongo
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:class:`~flask_pymongo.wrappers.Collection` instead of native PyMongo
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:class:`~pymongo.collection.Collection` when accessed with dot notation.
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"""
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def __getattr__(self, name): # noqa: D105
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attr = super(Database, self).__getattr__(name)
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if isinstance(attr, collection.Collection):
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return Collection(self, name)
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return attr
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def __getitem__(self, item): # noqa: D105
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item_ = super(Database, self).__getitem__(item)
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if isinstance(item_, collection.Collection):
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return Collection(self, item)
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return item_
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class Collection(collection.Collection):
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"""Sub-class of PyMongo :class:`~pymongo.collection.Collection` with helpers.
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"""
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def __getattr__(self, name): # noqa: D105
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attr = super(Collection, self).__getattr__(name)
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if isinstance(attr, collection.Collection):
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db = self._Collection__database
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return Collection(db, attr.name)
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return attr
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def __getitem__(self, item): # noqa: D105
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item_ = super(Collection, self).__getitem__(item)
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if isinstance(item_, collection.Collection):
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db = self._Collection__database
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return Collection(db, item_.name)
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return item_
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def find_one_or_404(self, *args, **kwargs):
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"""Find a single document or raise a 404.
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This is like :meth:`~pymongo.collection.Collection.find_one`, but
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rather than returning ``None``, cause a 404 Not Found HTTP status
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on the request.
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.. code-block:: python
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@app.route("/user/<username>")
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def user_profile(username):
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user = mongo.db.users.find_one_or_404({"_id": username})
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return render_template("user.html",
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user=user)
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"""
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found = self.find_one(*args, **kwargs)
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if found is None:
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abort(404)
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return found
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