76 lines
1.6 KiB
Python
76 lines
1.6 KiB
Python
from frappe import db, scrub
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def create_sequence(
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doctype_name: str,
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*,
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slug: str = "_id_seq",
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check_not_exists: bool = False,
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cycle: bool = False,
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cache: int = 0,
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start_value: int = 0,
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increment_by: int = 0,
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min_value: int = 0,
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max_value: int = 0
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) -> str:
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query = "create sequence"
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sequence_name = scrub(doctype_name + slug)
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if check_not_exists:
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query += " if not exists"
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query += f" {sequence_name}"
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if cache:
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query += f" cache {cache}"
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else:
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# in postgres, the default is cache 1
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if db.db_type == "mariadb":
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query += " nocache"
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if start_value:
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# default is 1
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query += f" start with {start_value}"
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if increment_by:
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# default is 1
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query += f" increment by {increment_by}"
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if min_value:
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# default is 1
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query += f" min value {min_value}"
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if max_value:
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query += f" max value {max_value}"
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if not cycle:
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if db.db_type == "mariadb":
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query += " nocycle"
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else:
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query += " cycle"
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db.sql(query)
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return sequence_name
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def get_next_val(doctype_name: str, slug: str = "_id_seq") -> int:
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if db.db_type == "postgres":
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return db.sql(f"select nextval(\'\"{scrub(doctype_name + slug)}\"\')")[0][0]
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return db.sql(f"select nextval(`{scrub(doctype_name + slug)}`)")[0][0]
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def set_next_val(
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doctype_name: str,
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next_val: int,
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*,
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slug: str = "_id_seq",
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is_val_used :bool = False
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) -> None:
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is_val_used = 0 if not is_val_used else 1
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if db.db_type == "postgres":
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db.sql(f"SELECT SETVAL(\'\"{scrub(doctype_name + slug)}\"\', {next_val}, {is_val_used})")
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else:
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db.sql(f"SELECT SETVAL(`{scrub(doctype_name + slug)}`, {next_val}, {is_val_used})")
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