Fixing some constraints (1f65921b) · Commits · odmc / orm_example

db.sqlite3

+8 KiB (184 KiB)

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imagedb/models.py

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -76,6 +76,9 @@ class Instrument(models.Model):
	instrumentName = models.CharField(max_length=100)		instrumentName = models.CharField(max_length=100)
	telescopeName = models.CharField(max_length=100)		telescopeName = models.CharField(max_length=100)

			class Meta:
			unique_together = (('instrumentName', 'telescopeName'))


	class Pointing(CompositeField):		class Pointing(CompositeField):
	rightAscension = models.FloatField()		rightAscension = models.FloatField()
	@@ -114,6 +117,8 @@ class NispDetector(models.Model):
	rawFrame = models.ForeignKey('NispRawFrame',		rawFrame = models.ForeignKey('NispRawFrame',
	related_name='detectors',		related_name='detectors',
	on_delete=models.CASCADE)		on_delete=models.CASCADE)
			class Meta:
			unique_together = (('detectorId', 'rawFrame'))


	WCS_COORDINATE_TYPE = (		WCS_COORDINATE_TYPE = (

imagedb_objects.ipynb

+59 −14

Original line number	Original line	Diff line number	Diff line
			%% Cell type:markdown id: tags:

			## Data insertion and retrieval with Django models

			In the following we show some examples in order to perform insertions and retrievals of metadata

	%% Cell type:code id: tags:		%% Cell type:code id: tags:

	``` python		``` python
	from imagedb.models import Instrument		from imagedb.models import Instrument

	instrument = Instrument.objects.get(instrumentName='NISP')		instrument = Instrument.objects.get(instrumentName='NISP')
	```

	%% Cell type:code id: tags:		print(instrument.telescopeName)

	``` python
	print(instrument.instrumentName)
	```		```

	%% Output		%% Output

	NISP		Euclid

	%% Cell type:code id: tags:		%% Cell type:code id: tags:

	``` python		``` python
	from imagedb.models import ImageType, Pointing, NispDetector, NispRawFrame		from imagedb.models import ImageType, Pointing, NispDetector, DataContainer, NispRawFrame

	from datetime import datetime		from datetime import datetime

			dataFile = DataContainer(
			fileFormat = 'fits',
			formatIdentifier = 'le1.nisprawframe',
			formatVersion = '1.0',
			url = "http://ia2-ownclud.oats.inaf.it/fake/7ff2f203/data/EUC_LE1_NISP_53892-Y-1_20170712T155430.1Z_00.00.fits"
			)

			# We have to save the data container to the DB before assigning it to a NispRawFrame
			dataFile.save()

	image = NispRawFrame(exposureTime = 105,		image = NispRawFrame(exposureTime = 105,
	imgNumber = 16,		imgNumber = 16,
	naxis1 = 2040,		naxis1 = 2040,
	naxis2 = 2040,		naxis2 = 2040,
	imageType = {'category':'SCIENCE',		imageType = {'category':'SCIENCE',
	'firstType':'OBJECT',		'firstType':'OBJECT',
	'secondType':'STD'},		'secondType':'STD'},
	observationDateTime = datetime.strptime("2025-06-21T18:27:23.000001",		observationDateTime = datetime.strptime("2025-06-21T18:27:23.000001",
	"%Y-%m-%dT%H:%M:%S.%f"),		"%Y-%m-%dT%H:%M:%S.%f"),
			observationId = 53892,
			ditherNumber = 1,
	instrument = instrument,		instrument = instrument,
	commandedPointing = {'rightAscension':8.48223045516,		commandedPointing = {'rightAscension':8.48223045516,
	'declination':8.48223045516,		'declination':8.48223045516,
	'pointingAngle':64.8793517547},		'orientation':64.8793517547},
	filterWheelPosition = "Y",		filterWheelPosition = "Y",
	grismWheelPosition = "OPEN"		grismWheelPosition = "OPEN"
	)		)



			image.frameFile = dataFile
	```		```

	%% Cell type:code id: tags:		%% Cell type:code id: tags:

	``` python		``` python
	image.commandedPointing		print(image.id)
			image.save()
			print(image.id)
	```		```

	%% Output		%% Output

	Pointing(rightAscension=8.48223045516, declination=8.48223045516, pointingAngle=64.8793517547)		None
			3

	%% Cell type:code id: tags:		%% Cell type:code id: tags:

	``` python		``` python
	image.commandedPointing.rightAscension		# We can start creating a detector

			d11 = NispDetector(detectorId = "11", gain = 1.0, readoutNoise = 0.0, rawFrame = image)
			d11.save()

			# or we can create the detector starting from the NispRawFrame, using the reversed relationship.
			# No need to save the detector in this case. It is done automatically

			image.detectors.create(
			detectorId = "12",
			gain = 1.0,
			readoutNoise = 0.0
			)
			```

			%% Output

			<NispDetector: NispDetector object (4)>

			%% Cell type:code id: tags:

			``` python
			image.detectors.all()
	```		```

	%% Output		%% Output

	8.48223045516		<QuerySet [<NispDetector: NispDetector object (1)>, <NispDetector: NispDetector object (2)>]>

	%% Cell type:code id: tags:		%% Cell type:code id: tags:

	``` python		``` python
	image = NispRawFrame.objects.filter(commandedPointing_rightAscension__lte=8.48223045516)[0]		image.detectors.all()
	```		```

			%% Output

			<QuerySet [<NispDetector: NispDetector object (1)>]>

	%% Cell type:code id: tags:		%% Cell type:code id: tags:

	``` python		``` python
	d = NispDetector(detectorId = "11", gain = 1.0, readoutNoise = 0.0, rawFrame = image)
	```		```

orm_example/settings.py

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -121,7 +121,7 @@ USE_I18N = True

	USE_L10N = True		USE_L10N = True

	USE_TZ = True		USE_TZ = False


	# Static files (CSS, JavaScript, Images)		# Static files (CSS, JavaScript, Images)