Azeez Muibi
101 lines
3.4 KiB
Python
101 lines
3.4 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 Offer(db.Model):
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__tablename__ = 'offers'
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id = db.Column(db.String, primary_key=True)
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product_id = db.Column(db.String, nullable=False)
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min_amount = db.Column(db.Float, nullable=False)
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max_amount = db.Column(db.Float, nullable=False)
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tenor = db.Column(db.Integer, nullable=False)
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schedule = db.Column(db.Integer, nullable=True)
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interest_rate = db.Column(db.Float, default=3.0)
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management_rate = db.Column(db.Float, default=1.0)
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insurance_rate = db.Column(db.Float, default=1.0)
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vat_rate = db.Column(db.Float, default=7.5)
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list_order = db.Column(db.Integer, nullable=True)
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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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charges = relationship(
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"Charge",
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back_populates="offer",
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cascade="all, delete-orphan"
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)
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@classmethod
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def get_all_offers(cls, id=None, product_id=None, start_date=None, end_date=None, page=1, limit=20):
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"""
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Get all offers with optional filtering
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Args:
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id (str, optional): Filter by offer ID
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product_id (str, optional): Filter by product ID
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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 Offer 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 id:
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query = query.filter(cls.id == id)
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if product_id:
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query = query.filter(cls.product_id == product_id)
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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 list_order ascending (if available) or created_at descending
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query = query.order_by(cls.list_order.asc(), 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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@classmethod
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def is_valid_offer(cls, offer_id):
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offer = cls.query.filter_by(id=str(offer_id)).first()
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if not offer:
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return False
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return offer
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def to_dict(self):
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"""
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Convert the Offer 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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'product_id': self.product_id,
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'min_amount': self.min_amount,
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'max_amount': self.max_amount,
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'tenor': self.tenor,
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'schedule': self.schedule,
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'interest_rate': self.interest_rate,
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'management_rate': self.management_rate,
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'insurance_rate': self.insurance_rate,
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'vat_rate': self.vat_rate,
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'list_order': self.list_order,
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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'<Offer {self.id}>' |