83 lines
2.3 KiB
Python
83 lines
2.3 KiB
Python
from peewee import *
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from datetime import datetime, time
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import json
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# Create database instance
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db = SqliteDatabase('data/scanner.db')
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class BaseModel(Model):
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class Meta:
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database = db
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class BarcodeDB(BaseModel):
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barcode = CharField(unique=True)
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product_info = TextField()
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class Meta:
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table_name = 'barcode_db'
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@classmethod
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def add_product(cls, barcode, product_info):
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# if product already exists, update product info
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product_info = json.dumps(product_info)
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try:
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product = cls.get(cls.barcode == barcode)
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if product.product_info != product_info:
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product.product_info = product_info
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product.save()
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except cls.DoesNotExist:
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# Add new product
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cls.create(barcode=barcode, product_info=product_info)
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class ScanLog(BaseModel):
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barcode = CharField()
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scan_at = DateTimeField(default=datetime.now)
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class Meta:
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table_name = 'scan_logs'
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@classmethod
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def get_today_logs(cls):
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# Get today's start and end timestamps
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today = datetime.now().date()
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today_start = datetime.combine(today, time.min) # Start of day (00:00:00)
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today_end = datetime.combine(today, time.max) # End of day (23:59:59.999999)
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# Query logs for today
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return cls.select().where(cls.scan_at.between(today_start, today_end))
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def serialize(self):
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# Try to get product info from BarcodeDB
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name = None
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try:
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product = BarcodeDB.get(BarcodeDB.barcode == self.barcode)
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product_info = json.loads(product.product_info)
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name = '暂无'
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name_key = ['goodsName', 'goods_name', 'name', 'description_cn', 'description']
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for key in name_key:
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if key in product_info:
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name = product_info.get(key)
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break
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except BarcodeDB.DoesNotExist:
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pass
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return {
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'barcode': self.barcode,
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'name': name,
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'scan_at': self.scan_at
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}
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@classmethod
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def add_log(cls, barcode):
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# Add log to database
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cls.create(barcode=barcode)
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# Create tables
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def create_tables():
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with db:
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db.create_tables([BarcodeDB, ScanLog])
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if __name__ == '__main__':
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create_tables()
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