Pass through column arguments, fixes #233, #266.

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Friedrich Lindenberg 2020-01-11 13:55:57 +01:00
parent e766fa25f0
commit ce28a0d4e8
1 changed files with 9 additions and 3 deletions
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12
dataset/table.py
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@ -430,20 +430,26 @@ class Table(object):
args = {k: row.pop(k, None) for k in keys} args = {k: row.pop(k, None) for k in keys}
return args, row return args, row
def create_column(self, name, type): def create_column(self, name, type, **kwargs):
"""Create a new column ``name`` of a specified type. """Create a new column ``name`` of a specified type.
:: ::
table.create_column('created_at', db.types.datetime) table.create_column('created_at', db.types.datetime)
`type` corresponds to an SQLAlchemy type as described by `type` corresponds to an SQLAlchemy type as described by
`dataset.db.Types` `dataset.db.Types`. Additional keyword arguments are passed
to the constructor of `Column`, so that default values, and
options like `nullable` and `unique` can be set.
::
table.create_column('key', unique=True, nullable=False)
table.create_column('food', default='banana')
""" """
name = normalize_column_name(name) name = normalize_column_name(name)
if self.has_column(name): if self.has_column(name):
log.debug("Column exists: %s" % name) log.debug("Column exists: %s" % name)
return return
self._sync_table((Column(name, type),)) self._sync_table((Column(name, type, **kwargs),))
def create_column_by_example(self, name, value): def create_column_by_example(self, name, value):
""" """