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import re
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from dataclasses import dataclass
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from fastapi import Query
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from pydantic import BaseModel, ConfigDict, Field, field_validator
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from app.common.enums import QueueEnum
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from app.core.base_params import BaseQueryParam, TenantByQueryParam, UserByQueryParam
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from app.core.base_schema import BaseSchema, TenantBySchema, UserBySchema
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class GenDBTableSchema(BaseModel):
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"""数据库中的表信息(跨方言统一结构)。
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- 供“导入表结构”与“同步结构”环节使用。
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"""
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model_config = ConfigDict(from_attributes=True)
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database_name: str | None = Field(default=None, description="数据库名称")
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table_name: str | None = Field(default=None, description="表名称")
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table_type: str | None = Field(default=None, description="表类型")
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table_comment: str | None = Field(default=None, description="表描述")
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class GenCreateTableSqlBody(BaseModel):
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"""从代码生成页提交的建表 SQL(JSON 对象,便于与前端 axios 一致)。"""
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sql: str = Field(..., description="CREATE TABLE 等 DDL,可多条语句")
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class GenTableColumnSchema(BaseModel):
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"""代码生成业务表字段创建模型(原始字段+生成配置)。
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- 从根本上解决问题:所有字段都设置了合理的默认值,避免None值问题
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"""
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model_config = ConfigDict(from_attributes=True)
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table_id: int = Field(default=0, description="归属表编号")
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column_name: str = Field(default="", description="列名称")
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column_comment: str | None = Field(default="", description="列描述")
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column_type: str = Field(default="varchar(255)", description="列类型")
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column_length: str | None = Field(default="", description="列长度")
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column_default: str | None = Field(default="", description="列默认值")
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is_pk: bool = Field(default=False, description="是否主键(True是 False否)")
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is_increment: bool = Field(default=False, description="是否自增(True是 False否)")
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is_nullable: bool = Field(default=True, description="是否允许为空(True是 False否)")
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is_unique: bool = Field(default=False, description="是否唯一(True是 False否)")
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python_type: str = Field(default="str", description="python类型")
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python_field: str = Field(default="", description="python字段名")
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# 这些开关若默认 True,会导致导入/同步时无法触发自动推断(如主键 id 误入新增/编辑/列表/查询)
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# 约定:None 表示“未配置”,由 GenUtils.init_column_field 推断填充
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is_insert: bool | None = Field(default=None, description="是否为新增字段(True是 False否)")
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is_edit: bool | None = Field(default=None, description="是否编辑字段(True是 False否)")
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is_list: bool | None = Field(default=None, description="是否列表字段(True是 False否)")
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is_query: bool | None = Field(default=None, description="是否查询字段(True是 False否)")
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query_type: str | None = Field(
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default=None, description="查询方式(等于、不等于、大于、小于、范围)"
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)
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# html_type 若给默认值会导致导入/同步时无法触发自动推断(全部变成 input)
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# 约定:None 表示“未配置”,由 GenUtils.init_column_field 推断填充
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html_type: str | None = Field(
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default=None,
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description="显示类型(文本框、文本域、下拉框、复选框、单选框、日期控件)",
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)
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dict_type: str | None = Field(default="", description="字典类型")
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sort: int = Field(default=0, description="排序")
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class GenTableColumnOutSchema(GenTableColumnSchema, BaseSchema):
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"""
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业务表字段输出模型
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"""
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model_config = ConfigDict(from_attributes=True)
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super_column: str | None = Field(default="0", description="是否为基类字段(1是 0否)")
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class GenTableSchema(BaseModel):
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"""代码生成业务表更新模型(扩展聚合字段)。
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- 聚合:`columns`字段包含字段列表;`pk_column`主键字段;子表结构`sub_table`。
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"""
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"""代码生成业务表基础模型(创建/更新共享字段)。
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- 说明:`params`为前端结构体,后端持久化为`options`的JSON。
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"""
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model_config = ConfigDict(from_attributes=True)
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table_name: str = Field(..., description="表名称")
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table_comment: str | None = Field(default=None, description="表描述")
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class_name: str | None = Field(default=None, description="实体类名称")
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package_name: str | None = Field(default=None, description="生成包路径")
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module_name: str | None = Field(default=None, description="生成模块名")
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business_name: str | None = Field(
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default=None,
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description=(
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"功能子目录/路由段;导入时默认表名;同 module_name 下多表须不同。"
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"可含斜杠表示嵌套,参考 module_example:demo、demo/subdir、gen_demo。"
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),
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)
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function_name: str | None = Field(default=None, description="生成功能名")
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sub_table_name: str | None = Field(default=None, description="关联子表的表名")
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sub_table_fk_name: str | None = Field(default=None, description="子表关联的外键名")
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parent_menu_id: int | None = Field(
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default=None,
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description=(
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"写入本地须选目录类型。有值:侧栏 上级/短包名/功能/按钮,页面路由 /包名/业务名。"
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"留空:侧栏 module_包名/功能/按钮,页面路由 /module_包名/业务名(与 plugin 一致);"
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"后端 HTTP 接口仍为 /短名(module_xxx→/xxx)。"
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),
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)
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description: str | None = Field(default=None, max_length=255, description="描述")
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columns: list["GenTableColumnOutSchema"] | None = Field(default=None, description="表列信息")
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@staticmethod
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def _normalize_slug_segment(v: str, *, allow_slash: bool = False) -> str:
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"""
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将输入规范成工程约定的路径片段:
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- 小写
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- 只保留 a-z 0-9 _
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- 连续 _ 合并
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- 首字符不能是数字(则前置 _)
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- allow_slash=True 时允许多段 path(每段分别规范)
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"""
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raw = (v or "").strip()
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if not raw:
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return ""
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if allow_slash:
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segs = [s for s in raw.strip("/").split("/") if s.strip()]
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norm = [GenTableSchema._normalize_slug_segment(s, allow_slash=False) for s in segs]
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norm = [s for s in norm if s]
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return "/".join(norm)
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s = raw.lower()
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s = re.sub(r"[^a-z0-9_]+", "_", s)
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s = re.sub(r"_+", "_", s).strip("_")
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if not s:
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return ""
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if s[0].isdigit():
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s = "_" + s
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return s
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@field_validator("table_name")
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@classmethod
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def table_name_update(cls, v: str) -> str:
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"""
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校验并规范化表名称。
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参数:
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- v (str): 原始表名。
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返回:
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- str: 去空白后的表名。
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异常:
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- ValueError: 表名为空时抛出。
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"""
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if not v:
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raise ValueError("表名称不能为空")
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return v.strip()
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@field_validator(
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"table_comment",
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"class_name",
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"function_name",
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"description",
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mode="before",
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)
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@classmethod
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def strip_optional_text_fields(cls, v: str | None) -> str | None:
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"""
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文本类字段统一去首尾空格;空串视为 None。
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参数:
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- v (str | None): 原始值。
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返回:
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- str | None: 非空字符串或 None。
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"""
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if v is None:
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return None
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s = str(v).strip()
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return s if s else None
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@field_validator("package_name", mode="before")
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@classmethod
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def normalize_package_name(cls, v: str | None) -> str | None:
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"""
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包名规范:必须是 module_xxx 形态(工程约定)。
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参数:
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- v (str | None): 原始包名。
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返回:
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- str | None: 规范化后的包名或 None。
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"""
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if v is None:
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return None
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s = cls._normalize_slug_segment(str(v), allow_slash=False)
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if not s:
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return None
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return s if s.startswith("module_") else f"module_{s}"
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@field_validator("module_name", mode="before")
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@classmethod
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def normalize_module_name(cls, v: str | None) -> str | None:
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"""
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模块名规范:不带 module_ 前缀;统一按 slug 规范。
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参数:
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- v (str | None): 原始模块名。
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返回:
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- str | None: 规范化后的模块名或 None。
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"""
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if v is None:
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return None
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s = cls._normalize_slug_segment(str(v), allow_slash=False)
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if not s:
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return None
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return s[7:] if s.startswith("module_") else s
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@field_validator("business_name", mode="before")
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@classmethod
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def normalize_business_name(cls, v: str | None) -> str | None:
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"""
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业务名允许多段(如 demo/subdir);统一按 slug 规范。
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参数:
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- v (str | None): 原始业务名。
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返回:
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- str | None: 规范化后的业务名或 None。
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"""
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if v is None:
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return None
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s = cls._normalize_slug_segment(str(v), allow_slash=True)
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return s if s else None
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@field_validator("sub_table_name", "sub_table_fk_name", mode="before")
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@classmethod
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def strip_optional_sub_fields(cls, v: str | None) -> str | None:
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"""
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主子表字段去首尾空格,空串视为未填。
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参数:
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- v (str | None): 原始值。
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返回:
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- str | None: 非空字符串或 None。
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"""
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if v is None:
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return None
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s = str(v).strip()
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return s if s else None
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class GenTableOutSchema(GenTableSchema, BaseSchema, UserBySchema, TenantBySchema):
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"""业务表输出模型(面向控制器/前端)。"""
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model_config = ConfigDict(from_attributes=True)
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pk_column: GenTableColumnOutSchema | None = Field(default=None, description="主键信息")
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# 子表同样需要携带 columns/pk_column 等输出字段,使用 OutSchema 便于模板与类型检查
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sub_table: "GenTableOutSchema | None" = Field(default=None, description="子表信息")
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sub: bool | None = Field(default=None, description="是否为子表")
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master_sub_hint: str | None = Field(
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default=None,
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description="主子表配置说明或异常提示(仅接口输出,不落库)",
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)
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class GenSyncColumnChange(BaseModel):
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"""同步差异:单个字段的变化项(用于预览,不落库)。"""
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model_config = ConfigDict(from_attributes=True)
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column_name: str = Field(..., description="列名")
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change_fields: list[str] = Field(default_factory=list, description="变化字段名列表")
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before: dict = Field(default_factory=dict, description="同步前(当前 gen 配置)摘要")
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after: dict = Field(default_factory=dict, description="同步后(来自 DB)摘要")
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class GenSyncPreviewSchema(BaseModel):
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"""同步数据库前的差异预览(主表 + 可选子表)。"""
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model_config = ConfigDict(from_attributes=True)
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table_name: str = Field(..., description="表名")
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added: list[str] = Field(default_factory=list, description="新增列(DB有、gen无)")
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removed: list[str] = Field(default_factory=list, description="删除列(gen有、DB无)")
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changed: list[GenSyncColumnChange] = Field(
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default_factory=list, description="变更列(同名但属性变化)"
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)
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unchanged: int = Field(default=0, description="未变化列数(同名且关键属性一致)")
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sub_table_name: str | None = Field(default=None, description="子表表名")
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sub: "GenSyncPreviewSchema | None" = Field(
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default=None, description="子表差异(若配置了主子表)"
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)
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@dataclass
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class GenTableQueryParam(BaseQueryParam, UserByQueryParam, TenantByQueryParam):
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"""代码生成业务表查询参数
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- 支持按`table_name`、`table_comment`进行模糊检索(由CRUD层实现like)。
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- 空值将被忽略,不参与过滤。
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"""
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table_name: str | None = Query(None, description="表名称")
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table_comment: str | None = Query(None, description="表注释")
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status: int | None = Query(None, ge=0, le=1, description="状态(0:启动 1:停用)")
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def __post_init__(self) -> None:
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self.table_name = (QueueEnum.like.value, self.table_name) if self.table_name else None
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self.table_comment = (QueueEnum.like.value, self.table_comment) if self.table_comment else None
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if isinstance(self.status, int):
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self.status = (QueueEnum.eq.value, self.status)
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