Azeez Muibi
82 lines
2.8 KiB
Python
82 lines
2.8 KiB
Python
from datetime import datetime, timezone
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from app.extensions import db
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from sqlalchemy.orm import relationship
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class Charge(db.Model):
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__tablename__ = 'charges'
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id = db.Column(db.Integer, primary_key=True, autoincrement=True)
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offer_id = db.Column(db.String, db.ForeignKey('offers.id'), nullable=False)
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code = db.Column(db.String(50), nullable=False)
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percent = db.Column(db.Float, nullable=False)
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description = db.Column(db.String(255), nullable=True)
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due = db.Column(db.Integer, default=0)
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created_at = db.Column(db.DateTime, default=datetime.now(timezone.utc))
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updated_at = db.Column(db.DateTime, default=datetime.now(timezone.utc), onupdate=datetime.now(timezone.utc))
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offer = relationship(
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"Offer",
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back_populates="charges",
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foreign_keys=[offer_id]
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)
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@classmethod
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def get_all_charges(cls, offer_id=None, code=None, start_date=None, end_date=None, page=1, limit=20):
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"""
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Get all charges with optional filtering
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Args:
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offer_id (str, optional): Filter by offer ID
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code (str, optional): Filter by charge code
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start_date (datetime, optional): Filter by start date (created_at)
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end_date (datetime, optional): Filter by end date (created_at)
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page (int, optional): Page number for pagination
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limit (int, optional): Number of items per page
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Returns:
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tuple: (list of Charge objects, total count)
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"""
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query = cls.query
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# Apply filters if provided
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if offer_id:
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query = query.filter(cls.offer_id == offer_id)
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if code:
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query = query.filter(cls.code == code)
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if start_date:
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query = query.filter(cls.created_at >= start_date)
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if end_date:
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query = query.filter(cls.created_at <= end_date)
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# Order by created_at descending (newest first)
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query = query.order_by(cls.created_at.desc())
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# Get total count before pagination
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total_count = query.count()
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# Apply pagination
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offset = (page - 1) * limit
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query = query.limit(limit).offset(offset)
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return query.all(), total_count
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def to_dict(self):
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"""
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Convert the Charge object to a dictionary format for JSON serialization.
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"""
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return {
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'id': self.id,
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'offer_id': self.offer_id,
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'code': self.code,
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'percent': self.percent,
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'description': self.description,
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'due': self.due,
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'created_at': self.created_at.isoformat() if self.created_at else None,
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'updated_at': self.updated_at.isoformat() if self.updated_at else None
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}
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def __repr__(self):
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return f'<Charge {self.id} - {self.code}>' |