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#!/usr/bin/env python3 |
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# -*- coding: utf-8 -*- |
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""" |
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Created on Wed Mar 27 12:50:16 2019 |
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@author: Paolo Cozzi <[email protected]> |
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""" |
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import logging |
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import websockets |
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import time |
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import json |
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from dateutil.relativedelta import relativedelta |
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from django.contrib.admin.utils import NestedObjects |
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from django.db import DEFAULT_DB_ALIAS |
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from django.utils.text import capfirst |
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from django.utils.encoding import force_text |
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from validation.helpers import ValidationSummary |
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from .constants import YEARS, MONTHS, DAYS |
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# Get an instance of a logger |
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logger = logging.getLogger(__name__) |
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def image_timedelta(t1, t2): |
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"""A function to deal with image time intervals. Returns a number and |
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time unit""" |
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if t1 is None or t2 is None: |
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logger.warning("One date is NULL ({0}, {1}) ignoring".format(t2, t1)) |
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return None, YEARS |
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if t2 > t1: |
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logger.warning("t2>t1 ({0}, {1}) ignoring".format(t2, t1)) |
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return None, YEARS |
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# check for meaningful intervald |
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if t1.year == 1900 or t2.year == 1900: |
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logger.warning("Ignoring one date ({0}, {1})".format(t2, t1)) |
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return None, YEARS |
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rdelta = relativedelta(t1, t2) |
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if rdelta.years != 0: |
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return rdelta.years, YEARS |
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elif rdelta.months != 0: |
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return rdelta.months, MONTHS |
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else: |
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return rdelta.days, DAYS |
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# https://stackoverflow.com/a/39533619/4385116 |
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# inspired django.contrib.admin.utils.get_deleted_objects, this function |
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# tries to determine all related objects starting from a provied one |
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# HINT: similar function at https://gist.github.com/nealtodd/4594575 |
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def get_deleted_objects(objs, db_alias=DEFAULT_DB_ALIAS): |
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# NestedObjects is an imporovement of django.db.models.deletion.Collector |
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collector = NestedObjects(using=db_alias) |
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collector.collect(objs) |
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def format_callback(obj): |
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opts = obj._meta |
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no_edit_link = '%s: %s' % (capfirst(opts.verbose_name), |
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force_text(obj)) |
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return no_edit_link |
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to_delete = collector.nested(format_callback) |
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protected = [format_callback(obj) for obj in collector.protected] |
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model_count = { |
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model._meta.verbose_name_plural: |
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len(objs) for model, objs in collector.model_objs.items()} |
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return to_delete, model_count, protected |
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def construct_validation_message(submission): |
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""" |
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Function will return dict with all the data required to construct |
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validation message |
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Args: |
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submission : submission to get data from |
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Returns: |
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dict: dictionary with all required data for validation message |
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""" |
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validation_summary = ValidationSummary(submission) |
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validation_message = dict() |
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# Number of animal and samples |
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validation_message['animals'] = validation_summary.n_animals |
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validation_message['samples'] = validation_summary.n_samples |
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# Number of unknow validations |
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validation_message['animal_unkn'] = validation_summary.n_animal_unknown |
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validation_message['sample_unkn'] = validation_summary.n_sample_unknown |
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# Number of problem validations |
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validation_message['animal_issues'] = validation_summary.n_animal_issues |
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validation_message['sample_issues'] = validation_summary.n_sample_issues |
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return validation_message |
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async def send_message_to_websocket(message, pk): |
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""" |
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Function will create websocket object and send message to django-channels |
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Args: |
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message (dict): message to send to websocket |
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pk (str): primary key of submission |
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""" |
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# Need to have it here as in case with small test data message sent to |
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# websocket will overcome response from server |
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time.sleep(3) |
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async with websockets.connect( |
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'ws://asgi:8001/image/ws/submissions/{}/'.format(pk)) as websocket: |
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await websocket.send(json.dumps(message)) |
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cnr-ibba /
IMAGE-InjectTool
