initial commit example

model/account.go

@@ -0,0 +1,112 @@
+package model
+
+import (
+	"errors"
+	"fmt"
+
+	uuid "github.com/gofrs/uuid"
+)
+
+// Account example
+type Account struct {
+	ID   int       `json:"id" example:"1" format:"int64"`
+	Name string    `json:"name" example:"account name"`
+	UUID uuid.UUID `json:"uuid" example:"550e8400-e29b-41d4-a716-446655440000" format:"uuid"`
+}
+
+// example
+var (
+	ErrNameInvalid = errors.New("name is empty")
+)
+
+// AddAccount example
+type AddAccount struct {
+	Name string `json:"name" example:"account name"`
+}
+
+// Validation example
+func (a AddAccount) Validation() error {
+	switch {
+	case len(a.Name) == 0:
+		return ErrNameInvalid
+	default:
+		return nil
+	}
+}
+
+// UpdateAccount example
+type UpdateAccount struct {
+	Name string `json:"name" example:"account name"`
+}
+
+// Validation example
+func (a UpdateAccount) Validation() error {
+	switch {
+	case len(a.Name) == 0:
+		return ErrNameInvalid
+	default:
+		return nil
+	}
+}
+
+// AccountsAll example
+func AccountsAll(q string) ([]Account, error) {
+	if q == "" {
+		return accounts, nil
+	}
+	as := []Account{}
+	for k, v := range accounts {
+		if q == v.Name {
+			as = append(as, accounts[k])
+		}
+	}
+	return as, nil
+}
+
+// AccountOne example
+func AccountOne(id int) (Account, error) {
+	for _, v := range accounts {
+		if id == v.ID {
+			return v, nil
+		}
+	}
+	return Account{}, ErrNoRow
+}
+
+// Insert example
+func (a Account) Insert() (int, error) {
+	accountMaxID++
+	a.ID = accountMaxID
+	a.Name = fmt.Sprintf("account_%d", accountMaxID)
+	accounts = append(accounts, a)
+	return accountMaxID, nil
+}
+
+// Delete example
+func Delete(id int) error {
+	for k, v := range accounts {
+		if id == v.ID {
+			accounts = append(accounts[:k], accounts[k+1:]...)
+			return nil
+		}
+	}
+	return fmt.Errorf("account id=%d is not found", id)
+}
+
+// Update example
+func (a Account) Update() error {
+	for k, v := range accounts {
+		if a.ID == v.ID {
+			accounts[k].Name = a.Name
+			return nil
+		}
+	}
+	return fmt.Errorf("account id=%d is not found", a.ID)
+}
+
+var accountMaxID = 3
+var accounts = []Account{
+	{ID: 1, Name: "account_1"},
+	{ID: 2, Name: "account_2"},
+	{ID: 3, Name: "account_3"},
+}