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44 lines
1.9 KiB
Python
44 lines
1.9 KiB
Python
from sqlalchemy import func
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from backend.app.db.models.recommendations import Plan, PlanRecommendations, Recommendation
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from backend.app.db.models.portfolio import Portfolio
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def aggregate_portfolio_recommendations(
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session, portfolio_id: int, total_valuation_increase: float, labour_days: float
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):
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# Aggregate multiple fields
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aggregates = (
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session.query(
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func.sum(Recommendation.estimated_cost).label("cost"),
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func.sum(Recommendation.total_work_hours).label("total_work_hours"),
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func.sum(Recommendation.heat_demand).label("energy_savings"),
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func.sum(Recommendation.co2_equivalent_savings).label("co2_equivalent_savings"),
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func.sum(Recommendation.energy_cost_savings).label("energy_cost_savings"),
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)
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.join(PlanRecommendations, PlanRecommendations.recommendation_id == Recommendation.id)
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.join(Plan, Plan.id == PlanRecommendations.plan_id)
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.filter(Plan.portfolio_id == portfolio_id, Plan.is_default == True, Recommendation.default == True)
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.one()
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)
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aggregates_dict = {
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"cost": aggregates.cost or 0,
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"total_work_hours": aggregates.total_work_hours or 0,
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"energy_savings": aggregates.energy_savings or 0,
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"co2_equivalent_savings": aggregates.co2_equivalent_savings or 0,
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"energy_cost_savings": aggregates.energy_cost_savings or 0,
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}
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# Get the portfolio and update the fields
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portfolio = session.query(Portfolio).filter_by(id=portfolio_id).one()
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# Update the data
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for key, value in aggregates_dict.items():
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setattr(portfolio, key, value)
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# Insert total valuation increase and labour days
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portfolio.property_valuation_increase = total_valuation_increase
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portfolio.labour_days = labour_days
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# Merge the updated portfolio back into the session
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session.merge(portfolio)
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session.flush()
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