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LSST Data Management Base Package
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lsst.dax.apdb.sql.apdbSql Namespace Reference

Classes

class  ApdbSql
 

Functions

pandas.DataFrame _coerce_uint64 (pandas.DataFrame df)
 
float _make_midpointMjdTai_start (astropy.time.Time visit_time, int months)
 
None _onSqlite3Connect (sqlite3.Connection dbapiConnection, sqlalchemy.pool._ConnectionRecord connectionRecord)
 

Variables

 _LOG = logging.getLogger(__name__)
 
 _MON = MonAgent(__name__)
 
 VERSION = VersionTuple(1, 1, 0)
 

Detailed Description

Module defining Apdb class and related methods.

Function Documentation

◆ _coerce_uint64()

pandas.DataFrame lsst.dax.apdb.sql.apdbSql._coerce_uint64 ( pandas.DataFrame df)
protected
Change the type of uint64 columns to int64, and return copy of data
frame.

Definition at line 80 of file apdbSql.py.

80def _coerce_uint64(df: pandas.DataFrame) -> pandas.DataFrame:
81 """Change the type of uint64 columns to int64, and return copy of data
82 frame.
83 """
84 names = [c[0] for c in df.dtypes.items() if c[1] == np.uint64]
85 return df.astype(dict.fromkeys(names, np.int64))
86
87

◆ _make_midpointMjdTai_start()

float lsst.dax.apdb.sql.apdbSql._make_midpointMjdTai_start ( astropy.time.Time visit_time,
int months )
protected
Calculate starting point for time-based source search.

Parameters
----------
visit_time : `astropy.time.Time`
    Time of current visit.
months : `int`
    Number of months in the sources history.

Returns
-------
time : `float`
    A ``midpointMjdTai`` starting point, MJD time.

Definition at line 88 of file apdbSql.py.

88def _make_midpointMjdTai_start(visit_time: astropy.time.Time, months: int) -> float:
89 """Calculate starting point for time-based source search.
90
91 Parameters
92 ----------
93 visit_time : `astropy.time.Time`
94 Time of current visit.
95 months : `int`
96 Number of months in the sources history.
97
98 Returns
99 -------
100 time : `float`
101 A ``midpointMjdTai`` starting point, MJD time.
102 """
103 # TODO: Use of MJD must be consistent with the code in ap_association
104 # (see DM-31996)
105 return float(visit_time.mjd - months * 30)
106
107

◆ _onSqlite3Connect()

None lsst.dax.apdb.sql.apdbSql._onSqlite3Connect ( sqlite3.Connection dbapiConnection,
sqlalchemy.pool._ConnectionRecord connectionRecord )
protected

Definition at line 108 of file apdbSql.py.

110) -> None:
111 # Enable foreign keys
112 with closing(dbapiConnection.cursor()) as cursor:
113 cursor.execute("PRAGMA foreign_keys=ON;")
114
115

Variable Documentation

◆ _LOG

lsst.dax.apdb.sql.apdbSql._LOG = logging.getLogger(__name__)
protected

Definition at line 69 of file apdbSql.py.

◆ _MON

lsst.dax.apdb.sql.apdbSql._MON = MonAgent(__name__)
protected

Definition at line 71 of file apdbSql.py.

◆ VERSION

lsst.dax.apdb.sql.apdbSql.VERSION = VersionTuple(1, 1, 0)

Definition at line 73 of file apdbSql.py.