47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
# SPDX-License-Identifier: WTFPL
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from .dbrecord import DbRecord
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class Vessel(DbRecord):
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table = "vessel"
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pk_field = "vid"
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fields = ('vid', 'vtype', 'vesselname', 'model', 'shipyard', 'loa', 'lwl',
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'beam', 'draught', 'draught_min', 'displacement', 'ballast',
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'beltpos_aft', 'beltpos_bow', 'shapefile', 'sid_default', 'year_built',
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'remarks')
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def __init__(self, db, vid=None):
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super().__init__(db, vid)
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self.title = _("Vessel({})")
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def create(self):
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sql = (
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"SELECT MIN(v1.vid+1) AS newid "
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"FROM vessel AS v1 LEFT JOIN vessel AS v2 ON v2.vid=v1.vid+1 "
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"WHERE v1.vid>=0 AND v2.vid IS NULL"
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)
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self.dcur.execute(sql)
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row = self.dcur.fetchone()
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if row is None:
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# vessel table empty: create first vessel
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self.pk_value = 1
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else:
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# create additional vessel
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self.pk_value = row['newid']
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self.clear()
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self.vid = self.pk_value
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self.vesselname = f"Vessel #{self.pk_value}"
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self.vtype = 1 # monohull
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self._insert()
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self.conn.commit()
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def save(self, commit=True):
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super().save()
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if commit:
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self.conn.commit()
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def delete(self):
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# there must be no assiciated data!
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pass
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