def get_vals_from_header(primary_hdr):
""" Helper function for ingest_contents to get values from primary header
for insertion into rasicam_DECam table
Parameters
----------
primary_hdr : pyfits.Header
The primary header
Returns
-------
dict containing the needed data
"""
# Keyword list needed to update the database.
# i=int, f=float, b=bool, s=str, date=date
keylist = {
'EXPNUM': 'i',
'INSTRUME': 's',
'SKYSTAT': 'b',
'SKYUPDAT': 'date',
'GSKYPHOT': 'b',
'LSKYPHOT': 'b',
'GSKYVAR': 'f',
'GSKYHOT': 'f',
'LSKYVAR': 'f',
'LSKYHOT': 'f',
'LSKYPOW': 'f'
}
vals = {}
for key, ktype in keylist.items():
key = key.upper()
if key in primary_hdr:
value = primary_hdr[key]
if key == 'SKYUPDAT': # entry_time is time exposure taken
vals['ENTRY_TIME'] = datetime.strptime(value,
"%Y-%m-%dT%H:%M:%S")
elif key == 'INSTRUME':
vals['CAMSYM'] = spmeta.create_camsym(value)
elif ktype == 'b':
if value:
vals[key] = 'T'
else:
vals[key] = 'F'
elif ktype == 'i':
if value != 'NaN':
vals[key] = int(value)
else:
if value != 'NaN':
vals[key] = float(value)
return vals
def func_camsym(filename, hdulist=None, whichhdu=None):
""" Create camsys from the INSTRUME keyword """
hdulist2 = None
if hdulist is None:
hdulist2 = pyfits.open(filename, 'readonly')
else:
hdulist2 = hdulist
instrume = fitsutils.get_hdr_value(hdulist2, 'INSTRUME', whichhdu)
if hdulist is None:
hdulist2.close()
return spmeta.create_camsym(instrume)
def func_camsym(filename, hdulist=None, whichhdu=None):
""" Create camsym from the 'INSTRUME' keyword value.
Parameters
----------
filename : str
The file to get the filter keyword from (must be a fits file),
only used if hdulist is ``None``.
hdulist : astropy.io.fits.HDUList, optional
A listing of the HDUs to search for the requested HDU,
default is ``None``, in which case `filename` is opened and used.
whichhdu : various, optional
The HDU being searched for, this can be an int for the HDU index,
a string for the HDU name, or ``None`` in which case the primary
HDU is used. The default is ``None``.
Returns
-------
str
Contains the generated camsym.
"""
hdulist2 = None
if hdulist is None:
hdulist2 = fits.open(filename, 'readonly')
else:
hdulist2 = hdulist
instrume = fitsutils.get_hdr_value(hdulist2, 'INSTRUME', whichhdu)
if hdulist is None:
hdulist2.close()
return spmeta.create_camsym(instrume)