move nmf_Rectify help_text to models

src/astra/models/nmf_rectify.py

@@ -1,42 +1,36 @@
 import datetime
 import numpy as np
-from peewee import (
+from peewee import fn
+from astra.fields import (
+    ArrayField,
     AutoField,
     IntegerField,
     FloatField,
     TextField,
     ForeignKeyField,
     DateTimeField,
     BooleanField,
-    fn,
+    BitField
 )
-from playhouse.postgres_ext import ArrayField
-
-from astra.models.fields import BitField
 from astra.models.base import BaseModel
 from astra.models.spectrum import Spectrum
 from astra.models.source import Source
 
 from astra import __version__
-from astra.glossary import Glossary
 
 class NMFRectify(BaseModel):
 
     source_pk = ForeignKeyField(Source, null=True, index=True, lazy_load=False)
-    spectrum_pk = ForeignKeyField(
-        Spectrum, 
-        index=True, 
-        lazy_load=False,
-        help_text=Glossary.spectrum_pk
-    )
+    spectrum_pk = ForeignKeyField(Spectrum, index=True, lazy_load=False)
 
     #> Astra Metadata
-    task_pk = AutoField(help_text=Glossary.task_pk)
-    v_astra = TextField(default=__version__, help_text=Glossary.v_astra)
-    created = DateTimeField(default=datetime.datetime.now, help_text=Glossary.created)
-    t_elapsed = FloatField(null=True, help_text=Glossary.t_elapsed)
-    t_overhead = FloatField(null=True, help_text=Glossary.t_overhead)
-    tag = TextField(default="", index=True, help_text=Glossary.tag)
+    task_pk = AutoField()
+    v_astra = TextField(default=__version__)
+    created = DateTimeField(default=datetime.datetime.now)
+    modified = DateTimeField(default=datetime.datetime.now)
+    t_elapsed = FloatField(null=True)
+    t_overhead = FloatField(null=True)
+    tag = TextField(default="", index=True)
 
     #> Continuum Fitting
     log10_W = ArrayField(FloatField, null=True, help_text="log10(W) NMF coefficients to compute spectra")