class FgdbHandler():
def __init__(self, data, uploadForm):
self.file = data
self.name = uploadForm.cleaned_data['name']
self.title = uploadForm.cleaned_data['title']
self.map_type = uploadForm.cleaned_data['map_type']
self.metadata_url = uploadForm.cleaned_data['metadata_url']
self.errJson = None
def saveZipfile(self):
archiveFolder = os.path.abspath(os.path.join(os.path.dirname(__file__), "uploads", "archives"))
zipLocation = os.path.join(archiveFolder, self.name + ".zip")
try:
destination = open(zipLocation, "wb+")
for chunk in self.file.chunks():
destination.write(chunk)
destination.close()
except:
raise forms.ValidationError("Failed to save the file that was uploaded. Please try again.")
else:
self.zipLocation = zipLocation
def unzipFile(self):
archive = ZipFile(self.zipLocation, "r")
folders = set([ name.split("/")[0] for name in archive.namelist() ])
if len(folders) != 1 or not list(folders)[0].endswith(".gdb"):
raise forms.ValidationError("The file that was uploaded did not contain a File Geodatabase")
else:
fgdbName = list(folders)[0]
fgdbFolder = os.path.abspath(os.path.join(os.path.dirname(__file__), "uploads", "fgdbs"))
archive.extractall(fgdbFolder)
self.fgdbLocation = os.path.join(fgdbFolder, fgdbName)
def validateFgdb(self):
self.newGeoMap = GeoMap(
name=self.name,
title=self.title,
map_type=self.map_type,
metadata_url=self.metadata_url,
fgdb_path=self.fgdbLocation
)
try:
self.newGeoMap.clean()
except ValidationError as err:
self.errJson = err.asJson
os.remove(self.zipLocation)
shutil.rmtree(self.fgdbLocation)
raise forms.ValidationError("Your File Geodatabase failed NCGMP09 validation. Issues are listed below.")
else:
self.newGeoMap.save()
def validateFgdb(self):
self.newGeoMap = GeoMap(
name=self.name,
title=self.title,
map_type=self.map_type,
metadata_url=self.metadata_url,
fgdb_path=self.fgdbLocation
)
try:
self.newGeoMap.clean()
except ValidationError as err:
self.errJson = err.asJson
os.remove(self.zipLocation)
shutil.rmtree(self.fgdbLocation)
raise forms.ValidationError("Your File Geodatabase failed NCGMP09 validation. Issues are listed below.")
else:
self.newGeoMap.save()
