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import sys, os, types, logging
#sys.path.append('C:\\Expo\\expoweb')
#from troggle import *
#os.environ['DJANGO_SETTINGS_MODULE']='troggle.settings'
import troggle.settings as settings
from troggle.core.models import *
from PIL import Image
#import settings
#import core.models as models
import csv
import re
import datetime
from utils import save_carefully
def get_or_create_placeholder(year):
""" All surveys must be related to a logbookentry. We don't have a way to
automatically figure out which survey went with which logbookentry,
so we create a survey placeholder logbook entry for each year. This
function always returns such a placeholder, and creates it if it doesn't
exist yet.
"""
lookupAttribs={'date__year':int(year), 'title':"placeholder for surveys",}
nonLookupAttribs={'text':"surveys temporarily attached to this should be re-attached to their actual trips", 'date':datetime.date(int(year),1,1)}
placeholder_logbook_entry, newly_created = save_carefully(LogbookEntry, lookupAttribs, nonLookupAttribs)
return placeholder_logbook_entry
def readSurveysFromCSV():
try: # could probably combine these two
surveytab = open(os.path.join(settings.SURVEY_SCANS, "Surveys.csv"))
except IOError:
import cStringIO, urllib
surveytab = cStringIO.StringIO(urllib.urlopen(settings.SURVEY_SCANS + "/Surveys.csv").read())
dialect=csv.Sniffer().sniff(surveytab.read())
surveytab.seek(0,0)
surveyreader = csv.reader(surveytab,dialect=dialect)
headers = surveyreader.next()
header = dict(zip(headers, range(len(headers)))) #set up a dictionary where the indexes are header names and the values are column numbers
# test if the expeditions have been added yet
if Expedition.objects.count()==0:
print "There are no expeditions in the database. Please run the logbook parser."
sys.exit()
logging.info("Deleting all scanned images")
ScannedImage.objects.all().delete()
logging.info("Deleting all survey objects")
Survey.objects.all().delete()
logging.info("Beginning to import surveys from "+str(os.path.join(settings.SURVEYS, "Surveys.csv"))+"\n"+"-"*60+"\n")
for survey in surveyreader:
#I hate this, but some surveys have a letter eg 2000#34a. The next line deals with that.
walletNumberLetter = re.match(r'(?P<number>\d*)(?P<letter>[a-zA-Z]*)',survey[header['Survey Number']])
# print walletNumberLetter.groups()
year=survey[header['Year']]
surveyobj = Survey(
expedition = Expedition.objects.filter(year=year)[0],
wallet_number = walletNumberLetter.group('number'),
logbook_entry = get_or_create_placeholder(year),
comments = survey[header['Comments']],
location = survey[header['Location']]
)
surveyobj.wallet_letter = walletNumberLetter.group('letter')
if survey[header['Finished']]=='Yes':
#try and find the sketch_scan
pass
surveyobj.save()
logging.info("added survey " + survey[header['Year']] + "#" + surveyobj.wallet_number + "\r")
def listdir(*directories):
try:
return os.listdir(os.path.join(settings.SURVEYS, *directories))
except:
import urllib
url = settings.SURVEYS + reduce(lambda x, y: x + "/" + y, ["listdir"] + list(directories))
folders = urllib.urlopen(url.replace("#", "%23")).readlines()
return [folder.rstrip(r"/") for folder in folders]
# add survey scans
def parseSurveyScans(year, logfile=None):
# yearFileList = listdir(year.year)
yearPath=os.path.join(settings.SURVEY_SCANS, "years", year.year)
yearFileList=os.listdir(yearPath)
print yearFileList
for surveyFolder in yearFileList:
try:
surveyNumber=re.match(r'\d\d\d\d#0*(\d+)',surveyFolder).groups()
# scanList = listdir(year.year, surveyFolder)
scanList=os.listdir(os.path.join(yearPath,surveyFolder))
except AttributeError:
print surveyFolder + " ignored",
continue
for scan in scanList:
try:
scanChopped=re.match(r'(?i).*(notes|elev|plan|elevation|extend)(\d*)\.(png|jpg|jpeg)',scan).groups()
scanType,scanNumber,scanFormat=scanChopped
except AttributeError:
print scan + " ignored \r",
continue
if scanType == 'elev' or scanType == 'extend':
scanType = 'elevation'
if scanNumber=='':
scanNumber=1
if type(surveyNumber)==types.TupleType:
surveyNumber=surveyNumber[0]
try:
placeholder=get_or_create_placeholder(year=int(year.year))
survey=Survey.objects.get_or_create(wallet_number=surveyNumber, expedition=year, defaults={'logbook_entry':placeholder})[0]
except Survey.MultipleObjectsReturned:
survey=Survey.objects.filter(wallet_number=surveyNumber, expedition=year)[0]
file=os.path.join(year.year, surveyFolder, scan)
scanObj = ScannedImage(
file=file,
contents=scanType,
number_in_wallet=scanNumber,
survey=survey,
new_since_parsing=False,
)
#print "Added scanned image at " + str(scanObj)
if scanFormat=="png":
if isInterlacedPNG(os.path.join(settings.SURVEY_SCANS,file)):
print file + " is an interlaced PNG. No can do."
continue
scanObj.save()
def parseSurveys(logfile=None):
readSurveysFromCSV()
for year in Expedition.objects.filter(year__gte=2000): #expos since 2000, because paths and filenames were nonstandard before then
parseSurveyScans(year)
def isInterlacedPNG(filePath): #We need to check for interlaced PNGs because the thumbnail engine can't handle them (uses PIL)
file=Image.open(filePath)
print filePath
if 'interlace' in file.info:
return file.info['interlace']
else:
return False
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