update models and sql

docs/sql/raspberry.sql

@@ -10,7 +10,7 @@ Target Server Type    : MYSQL
 Target Server Version : 50553
 File Encoding         : 65001
 
-Date: 2019-10-09 09:31:51
+Date: 2019-10-09 11:53:20
 */
 
 SET FOREIGN_KEY_CHECKS=0;
@@ -20,7 +20,9 @@ SET FOREIGN_KEY_CHECKS=0;
 -- ----------------------------
 DROP TABLE IF EXISTS `rasp_config`;
 CREATE TABLE `rasp_config` (
-  `height` bigint(20) DEFAULT '0'
+  `height` bigint(20) DEFAULT '0',
+  `config` varchar(64) NOT NULL,
+  PRIMARY KEY (`config`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 -- ----------------------------

models/raspConfig.go

@@ -3,19 +3,20 @@ package models
 type RaspConfig struct {
 	Model
 	Height   int64 `json:"height"`
+	Config   string `json:"config"`
 }
 
 // GetHeight get lastheight in chain33
 func GetHeight() (int64, error) {
-	var list []*RaspConfig
-	err := db.Find(&list).Error
+	var rasp RaspConfig
+	err := db.Select("Height").Where("config = ?","height").First(&rasp).Error
 	if err != nil  {
 		//if err == gorm.ErrRecordNotFound {
 		//	return 0, err
 		//}
 		return 0,err
 	}
-	return list[0].Height, nil
+	return rasp.Height, nil
 }
 
 // EditArticle modify a single article
@@ -31,6 +32,7 @@ func UpdateHeight(height int64) error {
 func InitHeight() error {
 	config := RaspConfig{
 		Height:         0,
+		Config:      "height",
 	}
 	if err := db.Create(&config).Error; err != nil {
 		return err