implement graphQL and init postgres

local/model/type.go

@@ -0,0 +1,95 @@
+package model
+
+import (
+	"errors"
+	"strings"
+
+	"gorm.io/gorm"
+)
+
+// Type represents a project type in the system
+type Type struct {
+	BaseModel
+	UserID      *string `json:"user_id" gorm:"type:uuid;index;references:users(id);onDelete:SET NULL"`
+	Name        string  `json:"name" gorm:"not null;type:varchar(100)"`
+	Description string  `json:"description" gorm:"type:text"`
+	User        *User   `json:"user,omitempty" gorm:"foreignKey:UserID"`
+}
+
+// TypeCreateRequest represents the request to create a new type
+type TypeCreateRequest struct {
+	UserID      *string `json:"user_id"`
+	Name        string  `json:"name" validate:"required,min=1,max=100"`
+	Description string  `json:"description" validate:"max=1000"`
+}
+
+// TypeUpdateRequest represents the request to update a type
+type TypeUpdateRequest struct {
+	Name        *string `json:"name,omitempty" validate:"omitempty,min=1,max=100"`
+	Description *string `json:"description,omitempty" validate:"omitempty,max=1000"`
+}
+
+// TypeInfo represents public type information
+type TypeInfo struct {
+	ID          string  `json:"id"`
+	UserID      *string `json:"user_id"`
+	Name        string  `json:"name"`
+	Description string  `json:"description"`
+	CreatedAt   string  `json:"created_at"`
+	UpdatedAt   string  `json:"updated_at"`
+}
+
+// BeforeCreate is called before creating a type
+func (t *Type) BeforeCreate(tx *gorm.DB) error {
+	t.BaseModel.BeforeCreate()
+
+	// Normalize name
+	t.Name = strings.TrimSpace(t.Name)
+	t.Description = strings.TrimSpace(t.Description)
+
+	return t.Validate()
+}
+
+// BeforeUpdate is called before updating a type
+func (t *Type) BeforeUpdate(tx *gorm.DB) error {
+	t.BaseModel.BeforeUpdate()
+
+	// Normalize fields if they're being updated
+	if t.Name != "" {
+		t.Name = strings.TrimSpace(t.Name)
+	}
+	if t.Description != "" {
+		t.Description = strings.TrimSpace(t.Description)
+	}
+
+	return t.Validate()
+}
+
+// Validate validates type data
+func (t *Type) Validate() error {
+	if t.Name == "" {
+		return errors.New("name is required")
+	}
+
+	if len(t.Name) > 100 {
+		return errors.New("name must not exceed 100 characters")
+	}
+
+	if len(t.Description) > 1000 {
+		return errors.New("description must not exceed 1000 characters")
+	}
+
+	return nil
+}
+
+// ToTypeInfo converts Type to TypeInfo (public information)
+func (t *Type) ToTypeInfo() TypeInfo {
+	return TypeInfo{
+		ID:          t.ID,
+		UserID:      t.UserID,
+		Name:        t.Name,
+		Description: t.Description,
+		CreatedAt:   t.CreatedAt.Format("2006-01-02T15:04:05Z07:00"),
+		UpdatedAt:   t.UpdatedAt.Format("2006-01-02T15:04:05Z07:00"),
+	}
+}