Added expenses to plan

core/models.go

@@ -1,5 +1,7 @@
 package core
 
+import "github.com/shopspring/decimal"
+
 type User struct {
 	Username   string   `gorm:"primaryKey" json:"username"`
 	Password   string   `json:"password"`
@@ -12,9 +14,8 @@ type Member struct {
 	ID     uint   `gorm:"primaryKey;autoIncrement:true" json:"-"`
 	PlanID uint   `json:"-"`
 	Plan   Plan   `json:"-"`
-	Type   string `gorm:"check:type in ('user','non-user')" json:"type"`
-	Name   string `gorm:"check:type=='member' OR name IS NOT NULL" json:"name"`
-	UserID string `json:"username"`
+	Name   string `gorm:"check:user_id IS NOT NULL OR name IS NOT NULL" json:"name,omitempty"`
+	UserID string `json:"username,omitempty"`
 	User   User   `gorm:"foreignKey:UserID" json:"-"`
 }
 
@@ -30,6 +31,25 @@ type Plan struct {
 	Polls       []Poll   `gorm:"foreignKey:PlanID;references:ID" json:"-"`
 }
 
+type Expense struct {
+	ID      uint            `gorm:"primaryKey;autoIncrement:true" json:"id"`
+	PlanID  uint            `json:"-"`
+	Plan    Plan            `json:"-"`
+	PayerID uint            `json:"-"`
+	Payer   Member          `gorm:"foreignKey:PayerID" json:"-"`
+	Amount  decimal.Decimal `json:"amount"`
+	Debts   []Debt          `gorm:"foreignKey:ExpenseID" json:"debts,omitempty"`
+}
+
+type Debt struct {
+	ExpenseID uint    `gorm:"primaryKey" json:"-"`
+	Expense   Expense `gorm:"foreignKey:ExpenseID"`
+	DebtorID  uint    `gorm:"primaryKey" json:"-"`
+	Debtor    Member  `gorm:"foreignKey:DebtorID"`
+	Amount    decimal.Decimal
+	Paid      decimal.Decimal
+}
+
 // CREATE TABLE polls(id INTEGER PRIMARY KEY AUTOINCREMENT, plan INTEGER, name STRING, options JSON, FOREIGN KEY plan REFERENCES plans(id))
 type Poll struct {
 	ID      uint   `gorm:"primaryKey;autoIncrement:true" json:"id"`