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# error-reporting-tool - model definitions
#
# Copyright (C) 2013 Intel Corporation
#
# Licensed under the MIT license, see COPYING.MIT for details
from django.db import models
from django.db.models.signals import post_save
from django.conf import settings
from datetime import datetime
import Levenshtein
# Create your models here.
class Build(models.Model):
DATE = models.DateTimeField('Submit date', blank=True, null=True)
MACHINE = models.CharField(max_length=50)
BRANCH = models.CharField(max_length=200)
COMMIT = models.CharField(max_length=200)
TARGET = models.CharField(max_length=100)
DISTRO = models.CharField(max_length=50)
NATIVELSBSTRING = models.CharField(max_length=100)
BUILD_SYS = models.CharField(max_length=200)
TARGET_SYS = models.CharField(max_length=200)
NAME = models.CharField(max_length=50)
EMAIL = models.CharField(max_length=50)
LINK_BACK = models.TextField(max_length=300, blank=True, null=True)
class BuildFailure(models.Model):
TASK = models.CharField(max_length=200)
RECIPE= models.CharField(max_length=250)
RECIPE_VERSION = models.CharField(max_length=200)
ERROR_DETAILS = models.TextField(max_length=int(settings.MAX_UPLOAD_SIZE))
BUILD = models.ForeignKey(Build)
LEV_DISTANCE = models.IntegerField(blank=True, null=True)
def get_similar_fails(self):
if self.LEV_DISTANCE is None:
return BuildFailure.objects.none()
start = self.LEV_DISTANCE
end = self.LEV_DISTANCE + settings.SIMILAR_FAILURE_DISTANCE
query_set = BuildFailure.objects.filter(LEV_DISTANCE__range=(start,end)).exclude(id=self.id).filter(TASK=self.TASK)
return query_set
def get_similar_fails_count(self, count=False):
return self.get_similar_fails().count()
def calc_lev_distance(self):
if BuildFailure.objects.all().count() == 0:
return 0
# Use the last 400 characters of the ERROR_DETAILS.
# This is where the error message is likely to occour and
# reduces the computational load on calculating the Levenshtein
# distance.
seed = BuildFailure.objects.first().ERROR_DETAILS[-400:]
lv = Levenshtein.distance(str(seed), str(self.ERROR_DETAILS[-400:]))
# Offset the distance calculated against the length of the error.
return lv + len (self.ERROR_DETAILS)
def save(self, *args, **kwargs):
recalc_lev_distance = kwargs.pop('recalc_lev_distance', False)
if self.LEV_DISTANCE == None or recalc_lev_distance:
self.LEV_DISTANCE = self.calc_lev_distance()
super(BuildFailure, self).save(*args, **kwargs)
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