initial category types

pkg/services/category/category.go

+package category
+
+type Repository interface {
+	Save(item *Item) error
+	Update(item *Item) error
+	Delete(params *DeleteParams) error
+	Find(query *FindParams) ([]*Item, error)
+}
+
+var repositoryInstance Repository
+
+func GetRepository() Repository {
+	return repositoryInstance
+}
+
+func SetRepository(rep Repository) {
+	repositoryInstance = rep
+}
+
+type FindParams struct {
+	OrgId  int64 `json:"orgId"`
+	UserId int64 `json:"userId"`
+	Limit  int64 `json:"limit"`
+}
+
+type DeleteParams struct {
+	Id   int64  `json:"id"`
+	Name string `json:"title"`
+}
+
+type ItemType string
+
+type Item struct {
+	Id          int64  `json:"id"`
+	OrgId       int64  `json:"orgId"`
+	UserId      int64  `json:"userId"`
+	Name        string `json:"title"`
+	Description string `json:"text"`
+}

pkg/services/sqlstore/category.go

+package sqlstore
+
+import (
+	"github.com/grafana/grafana/pkg/services/category"
+)
+
+type SqlCategoryRepo struct {
+}
+
+func (r *SqlCategoryRepo) Save(item *category.Item) error {
+	return nil
+}
+
+func (r *SqlCategoryRepo) Update(item *category.Item) error {
+	return nil
+}
+
+func (r *SqlCategoryRepo) Delete(params *category.DeleteParams) error {
+	return nil
+}
+
+func (r *SqlCategoryRepo) Find(params *category.FindParams) ([]*category.Item, error) {
+	return nil, nil
+}

pkg/services/sqlstore/sqlstore.go

@@ -12,6 +12,7 @@ import (
 	"github.com/grafana/grafana/pkg/log"
 	m "github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/services/annotations"
+	"github.com/grafana/grafana/pkg/services/category"
 	"github.com/grafana/grafana/pkg/services/sqlstore/migrations"
 	"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
 	"github.com/grafana/grafana/pkg/setting"
@@ -98,7 +99,9 @@ func SetEngine(engine *xorm.Engine) (err error) {
 		return fmt.Errorf("Sqlstore::Migration failed err: %v\n", err)
 	}
 
+	// Init repo instances
 	annotations.SetRepository(&SqlAnnotationRepo{})
+	category.SetRepository(&SqlCategoryRepo{})
 
 	return nil
 }