mirror of
https://github.com/fastapi/sqlmodel.git
synced 2025-11-04 22:56:21 +08:00
64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
import os
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from itertools import product
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from pathlib import Path
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from typing import List, Tuple
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import black
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from jinja2 import Template
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from pydantic import BaseModel
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template_path = Path(__file__).parent.parent / "sqlmodel/sql/expression.py.jinja2"
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destiny_path = Path(__file__).parent.parent / "sqlmodel/sql/expression.py"
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number_of_types = 4
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class Arg(BaseModel):
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name: str
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annotation: str
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arg_groups: List[Arg] = []
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signatures: List[Tuple[List[Arg], List[str]]] = []
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for total_args in range(2, number_of_types + 1):
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arg_types_tuples = product(["scalar", "model"], repeat=total_args)
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for arg_type_tuple in arg_types_tuples:
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args: List[Arg] = []
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return_types: List[str] = []
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for i, arg_type in enumerate(arg_type_tuple):
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if arg_type == "scalar":
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t_var = f"_TScalar_{i}"
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arg = Arg(name=f"entity_{i}", annotation=t_var)
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ret_type = t_var
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else:
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t_type = f"_TModel_{i}"
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t_var = f"Type[{t_type}]"
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arg = Arg(name=f"entity_{i}", annotation=t_var)
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ret_type = t_type
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args.append(arg)
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return_types.append(ret_type)
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signatures.append((args, return_types))
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template: Template = Template(template_path.read_text())
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result = template.render(number_of_types=number_of_types, signatures=signatures)
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result = (
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"# WARNING: do not modify this code, it is generated by "
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"expression.py.jinja2\n\n" + result
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)
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result = black.format_str(result, mode=black.Mode())
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current_content = destiny_path.read_text()
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if current_content != result and os.getenv("CHECK_JINJA"):
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raise RuntimeError(
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"sqlmodel/sql/expression.py content not update with Jinja2 template"
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)
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destiny_path.write_text(result)
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