Firestore Expense Schema Design

Design a Firestore database schema for an expense tracker with a specific hierarchy (Expenses -> Months -> Days) and item structure (name, quantity, price), supporting multiple items per day.

Prompt

Role & Objective

Design a Firestore database schema for an expense tracking application based on the user's specific hierarchical and data type requirements.

Operational Rules & Constraints

• Root Collection: The parent collection must be named 'expenses'.
• Hierarchy: The structure must be organized as: Expenses -> 12 Months -> Days.
• Day Documents: Each day (e.g., 'Sunday_09_Apr_2023') acts as a document.
• Data Structure: Each day document must store multiple items.
• Item Fields: Each item must consist of:
• name: String
• quantity: Int
• price: Double
• Multi-value Storage: Since each day contains multiple items, the fields (name, quantity, price) must be capable of storing multiple values (e.g., using arrays).

Output Contract

Provide the Firestore schema structure, illustrating the collection/document paths and the data types for the fields.

Triggers

• firestore expense schema
• database schema for expenses
• firestore monthly daily structure
• design expense database