283 lines
11 KiB
Python
283 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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"""数据模型：用户、供应商、物料、订单、明细、审核记录。"""
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from datetime import datetime
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from decimal import Decimal, ROUND_HALF_UP
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from pathlib import Path
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from sqlalchemy import (Boolean, Column, DateTime, ForeignKey, Integer,
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String, Text, LargeBinary, UniqueConstraint, create_engine, event)
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from sqlalchemy.types import TypeDecorator
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from sqlalchemy.orm import declarative_base, relationship, sessionmaker
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Base = declarative_base()
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class FixedDecimal(TypeDecorator):
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"""SQLite stores integers; Python always receives Decimal, including SUM."""
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impl = Integer
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cache_ok = True
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def __init__(self, places=2):
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self.places = places
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self.factor = 10 ** places
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super().__init__()
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def process_bind_param(self, value, dialect):
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if value is None:
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return None
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return int((Decimal(str(value)) * self.factor).quantize(Decimal('1'), rounding=ROUND_HALF_UP))
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def process_result_value(self, value, dialect):
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return Decimal(value) / self.factor if value is not None else None
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COMPANY_NAME = u"苏州博特维智能科技有限公司"
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DEFAULT_DELIVERY_PLACE = (u"苏州市工业园区星汉街5号腾飞新苏工业坊B幢5楼05-06单元 "
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u"胡乃琛 13913172516")
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# 需方（我方）默认信息：新建单据时自动预置到联系人 / 电话 / 税号 / 税点
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DEFAULT_OUR_CONTACT = u"胡乃琛"
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DEFAULT_OUR_PHONE = u"13913172516"
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DEFAULT_OUR_TAX_NO = u"91320507MA1WW8D15D"
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DEFAULT_TAX_RATE = u"13%"
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DOC_TYPES = {
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"purchase": u"采购单",
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"outsourcing": u"委外生产订单",
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}
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STATUS_TEXT = {
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"draft": u"草稿",
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"pending_approval": u"待审批",
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"approved": u"审批通过",
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"rejected": u"已驳回",
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"voided": u"已作废",
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}
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ROLE_TEXT = {
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"admin": u"系统管理员",
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"maker": u"制单员",
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"approver": u"审批员",
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}
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INVOICE_STATUS = {'unknown': '未登记', 'pending': '未收票', 'received': '已收票'}
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DELIVERY_STATUS = {'unknown': '未登记', 'pending': '未交货', 'partial': '部分交货', 'delivered': '已交货'}
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PAYMENT_STATUS = {'unknown': '未登记', 'unpaid': '未付款', 'partial': '部分付款', 'paid': '已付款'}
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class User(Base):
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__tablename__ = "users"
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id = Column(Integer, primary_key=True)
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username = Column(String(50), unique=True, nullable=False)
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password_hash = Column(String(200), nullable=False)
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name = Column(String(50), nullable=False)
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role = Column(String(20), nullable=False, default="maker")
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active = Column(Boolean, default=True)
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created_at = Column(DateTime, default=datetime.now)
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session_version = Column(Integer, nullable=False, default=1)
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must_change_password = Column(Boolean, nullable=False, default=True)
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class Supplier(Base):
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__tablename__ = "suppliers"
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id = Column(Integer, primary_key=True)
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code = Column(String(50))
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name = Column(String(200), nullable=False)
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short_name = Column(String(60), nullable=False, default='')
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contact = Column(String(50))
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phone = Column(String(50))
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tax_no = Column(String(80))
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bank_name = Column(String(120))
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bank_account = Column(String(80))
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payment_terms = Column(String(120))
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active = Column(Boolean, default=True)
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class Material(Base):
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__tablename__ = "materials"
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id = Column(Integer, primary_key=True)
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code = Column(String(80), nullable=False)
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spec = Column(String(300))
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unit = Column(String(20))
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price = Column('price_units', FixedDecimal(4), default=0)
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active = Column(Boolean, default=True)
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class Order(Base):
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__tablename__ = "orders"
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id = Column(Integer, primary_key=True)
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order_no = Column(String(50), nullable=False, unique=True)
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doc_type = Column(String(20), nullable=False, default="purchase")
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supplier_name = Column(String(200))
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supplier_contact = Column(String(50))
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supplier_phone = Column(String(50))
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supplier_tax_no = Column(String(80))
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supplier_bank_name = Column(String(120))
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supplier_bank_account = Column(String(80))
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payment_terms = Column(String(120))
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our_company = Column(String(200), default=COMPANY_NAME)
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our_contact = Column(String(50), default=DEFAULT_OUR_CONTACT)
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our_phone = Column(String(50), default=DEFAULT_OUR_PHONE)
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our_tax_no = Column(String(80), default=DEFAULT_OUR_TAX_NO)
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tax_rate = Column(String(30), default=DEFAULT_TAX_RATE)
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order_date = Column(String(20))
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delivery_place = Column(String(300), default=DEFAULT_DELIVERY_PLACE)
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note = Column(Text)
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total_amount = Column('total_cents', FixedDecimal(), default=0)
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status = Column(String(20), default="draft")
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created_by = Column(Integer, ForeignKey("users.id"))
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created_by_name = Column(String(50))
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created_at = Column(DateTime, default=datetime.now)
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submitted_at = Column(DateTime)
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reviewed_by = Column(String(50))
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reviewed_at = Column(DateTime)
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approved_by = Column(String(50))
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approved_at = Column(DateTime)
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reject_reason = Column(Text)
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reviewed_by_id = Column(Integer, ForeignKey('users.id'))
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approved_by_id = Column(Integer, ForeignKey('users.id'))
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revision = Column(Integer, nullable=False, default=0)
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row_version = Column(Integer, nullable=False, default=1)
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needs_prepayment = Column(Boolean, nullable=False, default=False)
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invoice_status = Column(String(20), nullable=False, default='pending')
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delivery_status = Column(String(20), nullable=False, default='pending')
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payment_status = Column(String(20), nullable=False, default='unpaid')
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payment_date = Column(String(10), nullable=False, default='')
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fulfillment_note = Column(Text, nullable=False, default='')
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payment_note = Column(Text, nullable=False, default='')
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fulfillment_revision = Column(Integer, nullable=False, default=-1)
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payment_revision = Column(Integer, nullable=False, default=-1)
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__mapper_args__ = {'version_id_col': row_version}
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items = relationship("OrderItem", backref="order", cascade="all, delete-orphan",
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order_by="OrderItem.seq")
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logs = relationship("ApprovalLog", backref="order", cascade="all, delete-orphan",
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order_by="ApprovalLog.id")
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versions = relationship('OrderVersion', backref='order', order_by='OrderVersion.revision')
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@property
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def status_text(self):
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return STATUS_TEXT.get(self.status, self.status)
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@property
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def doc_type_text(self):
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return DOC_TYPES.get(self.doc_type, self.doc_type)
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@property
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def invoice_status_text(self):
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return INVOICE_STATUS.get(self.invoice_status, '未登记')
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@property
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def delivery_status_text(self):
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return DELIVERY_STATUS.get(self.delivery_status, '未登记')
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@property
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def payment_status_text(self):
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return PAYMENT_STATUS.get(self.payment_status, '未登记')
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@property
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def fulfillment_stale(self):
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return self.fulfillment_revision >= 0 and self.fulfillment_revision != self.revision
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@property
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def payment_stale(self):
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return self.payment_revision >= 0 and self.payment_revision != self.revision
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class OrderItem(Base):
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__tablename__ = "order_items"
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id = Column(Integer, primary_key=True)
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order_id = Column(Integer, ForeignKey("orders.id"))
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seq = Column(Integer, default=1)
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material_code = Column(String(80))
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material_spec = Column(String(300))
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unit = Column(String(20))
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qty = Column('qty_units', FixedDecimal(4), default=0)
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price = Column('price_units', FixedDecimal(4), default=0)
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amount = Column('amount_cents', FixedDecimal(), default=0)
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delivery_date = Column(String(30))
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remark = Column(String(200))
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class ApprovalLog(Base):
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__tablename__ = "approval_logs"
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id = Column(Integer, primary_key=True)
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order_id = Column(Integer, ForeignKey("orders.id"))
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action = Column(String(50))
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user_name = Column(String(50))
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comment = Column(Text)
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created_at = Column(DateTime, default=datetime.now)
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user_id = Column(Integer, ForeignKey('users.id'))
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revision = Column(Integer, nullable=False, default=0)
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from_status = Column(String(20))
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to_status = Column(String(20))
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class OrderVersion(Base):
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__tablename__ = 'order_versions'
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__table_args__ = (UniqueConstraint('order_id', 'revision'),)
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id = Column(Integer, primary_key=True)
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order_id = Column(Integer, ForeignKey('orders.id'), nullable=False)
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revision = Column(Integer, nullable=False)
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content_json = Column(Text, nullable=False)
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created_at = Column(DateTime, default=datetime.now)
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pdf_data = Column(LargeBinary)
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pdf_sha256 = Column(String(64))
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template_version = Column(String(30))
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class CreationRequest(Base):
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__tablename__ = 'creation_requests'
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key = Column(String(64), primary_key=True)
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user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
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operation = Column(String(80), nullable=False)
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order_id = Column(Integer, ForeignKey('orders.id'), nullable=False)
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class NotificationSettings(Base):
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__tablename__ = 'notification_settings'
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id = Column(Integer, primary_key=True)
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enabled = Column(Boolean, nullable=False, default=False)
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base_url = Column(String(300), nullable=False, default='')
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review_webhook = Column(Text, nullable=False, default='')
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approval_webhook = Column(Text, nullable=False, default='')
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result_webhook = Column(Text, nullable=False, default='')
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next_dispatch_at = Column(DateTime)
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class Notification(Base):
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__tablename__ = 'notifications'
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id = Column(Integer, primary_key=True)
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log_id = Column(Integer, ForeignKey('approval_logs.id'), unique=True)
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order_id = Column(Integer, ForeignKey('orders.id'))
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revision = Column(Integer, nullable=False, default=0)
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channel = Column(String(20), nullable=False)
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event = Column(String(50), nullable=False)
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expected_status = Column(String(20))
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status = Column(String(20), nullable=False, default='pending', index=True)
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attempts = Column(Integer, nullable=False, default=0)
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created_at = Column(DateTime, nullable=False, default=datetime.utcnow)
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next_attempt_at = Column(DateTime, nullable=False, default=datetime.utcnow)
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sent_at = Column(DateTime)
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lease_until = Column(DateTime)
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lease_token = Column(String(32))
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last_error = Column(String(200), nullable=False, default='')
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def init_db(db_path):
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from migrations import upgrade_database
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existed = Path(db_path).exists()
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upgrade_database(db_path)
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engine = create_engine("sqlite:///" + db_path, echo=False, hide_parameters=True, connect_args={'timeout': 30})
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@event.listens_for(engine, 'connect')
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def sqlite_settings(connection, _):
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connection.execute('PRAGMA foreign_keys=ON')
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connection.execute('PRAGMA busy_timeout=30000')
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Base.metadata.create_all(engine)
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if not existed:
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with engine.connect() as con:
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con.exec_driver_sql('PRAGMA user_version=5')
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return engine, sessionmaker(bind=engine)
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