50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
from .operation import *
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def get_pattern_schema(name: str) -> dict[str, dict[str, Any]]:
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return { 'id' : {'type': 'str' , 'optional': False , 'readonly': True },
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'factors' : {'type': 'float_list' , 'optional': False , 'readonly': False } }
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def get_pattern(name: str, id: str) -> dict[str, Any]:
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pas = read_all(name, f"select * from patterns where id = '{id}'")
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ps = []
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for r in pas:
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ps.append(float(r['factor']))
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return { 'id': id, 'factors': ps }
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def set_pattern_cache(name: str, cs: ChangeSet) -> SqlChangeSet:
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id = cs.operations[0]['id']
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old = get_pattern(name, id)
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new = { 'id': id, 'factors': [] }
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f_id = f"'{id}'"
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# TODO: transaction ?
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redo_sql = f"delete from patterns where id = {f_id};"
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redo_sql += f"\ndelete from _pattern where id = {f_id};"
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if len(cs.operations[0]['factors']) > 0:
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redo_sql += f"\ninsert into _pattern (id) values ({f_id});"
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for factor in cs.operations[0]['factors']:
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f_factor = float(factor)
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redo_sql += f"\ninsert into patterns (id, factor) values ({f_id}, {f_factor});"
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new['factors'].append(factor)
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undo_sql = f"delete from patterns where id = {f_id};"
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undo_sql += f"\ndelete from _pattern where id = {f_id};"
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if len(old['factors']) > 0:
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undo_sql += f"\ninsert into _pattern (id) values ({f_id});"
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for f_factor in old['factors']:
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undo_sql += f"\ninsert into patterns (id, factor) values ({f_id}, {f_factor});"
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redo_cs = g_update_prefix | { 'type': 'pattern' } | new
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undo_cs = g_update_prefix | { 'type': 'pattern' } | old
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return SqlChangeSet(redo_sql, undo_sql, redo_cs, undo_cs)
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def set_pattern(name: str, cs: ChangeSet) -> ChangeSet:
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return execute_command(name, set_pattern_cache(name, cs))
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