1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
package models
import (
"time"
"golang.org/x/crypto/bcrypt"
"gorm.io/gorm"
)
// User represents a user in the system
// We'll store a hashed password, not the plaintext one.
type User struct {
gorm.Model // Includes ID, CreatedAt, UpdatedAt, DeletedAt
Name string `gorm:"not null"`
Email string `gorm:"uniqueIndex;not null"` // Unique email
PasswordHash string `gorm:"not null"` // Store hashed password
}
// SetPassword hashes the given password and sets it on the user model.
func (u *User) SetPassword(password string) error {
hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return err
}
u.PasswordHash = string(hashedPassword)
return nil
}
// CheckPassword compares a given password with the user's hashed password.
// Returns nil if the password is correct, otherwise returns an error.
func (u *User) CheckPassword(password string) error {
return bcrypt.CompareHashAndPassword([]byte(u.PasswordHash), []byte(password))
}
// Account represents a financial account (e.g., bank account, credit card, cash)
// It belongs to a User.
type Account struct {
gorm.Model
UserID uint `gorm:"not null;index"` // Foreign key to User
User User // Belongs To relationship
Name string `gorm:"not null"`
Type string `gorm:"not null;index"` // e.g., "Bank", "Credit Card", "Cash", "Loan", "Income Source"
// Balance is stored in the smallest currency unit (e.g., cents)
// to avoid floating point issues.
Balance int64 `gorm:"not null;default:0"`
}
// Transaction represents an income or expense event.
// It belongs to a User and is usually associated with an Account.
type Transaction struct {
gorm.Model
UserID uint `gorm:"not null;index"` // Foreign key to User
User User // Belongs To relationship
AccountID *uint `gorm:"index"` // Foreign key to Account (nullable, e.g., for cash transactions not tied to a bank)
Account *Account // Belongs To relationship (pointer for nullable FK)
Description string `gorm:"not null"`
// Amount stored in the smallest currency unit (e.g., cents)
Amount int64 `gorm:"not null"`
Type string `gorm:"not null;index"` // "Income" or "Expense"
Date time.Time `gorm:"not null;index"` // Date of the transaction
Category string `gorm:"index"` // e.g., "Salary", "Groceries", "Utilities"
}
// Loan represents a loan taken by the user.
// It belongs to a User and may be linked to an Account representing the loan source/payments.
type Loan struct {
gorm.Model
UserID uint `gorm:"not null;index"` // Foreign key to User
User User // Belongs To relationship
AccountID *uint `gorm:"index"` // Optional FK to the related Account (e.g., where payments are made from/to)
Account *Account // Belongs To relationship
Name string `gorm:"not null"` // e.g., "Car Loan", "Student Loan"
OriginalAmount int64 `gorm:"not null"` // In smallest currency unit
CurrentBalance int64 `gorm:"not null"` // In smallest currency unit
InterestRate float64 // Annual interest rate (e.g., 0.05 for 5%)
StartDate time.Time
EndDate time.Time // Expected payoff date
// Add fields for payment frequency, next due date etc. if needed later
}
// Goal represents a financial goal the user is working towards.
// It belongs to a User.
type Goal struct {
gorm.Model
UserID uint `gorm:"not null;index"` // Foreign key to User
User User // Belongs To relationship
Name string `gorm:"not null"` // e.g., "Save for Down Payment", "Pay Off Credit Card"
TargetAmount int64 `gorm:"not null"` // In smallest currency unit
CurrentAmount int64 `gorm:"not null;default:0"` // In smallest currency unit
TargetDate time.Time // Optional target date for the goal
Status string `gorm:"not null;default:'Active';index"` // e.g., "Active", "Achieved", "Cancelled"
// Link to specific accounts or loans if needed (e.g., goal to pay off a specific loan)
// RelatedAccountID *uint
// RelatedLoanID *uint
}
// Add other models below (Goal)
|
