feature model fix (#296)

* add raw stirng quote for sql field

* remove unused code

tools/goctl/model/sql/test/model/studentmodel.go

@@ -0,0 +1,105 @@
+package model
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/tal-tech/go-zero/core/stores/cache"
+	"github.com/tal-tech/go-zero/core/stores/sqlc"
+	"github.com/tal-tech/go-zero/core/stores/sqlx"
+	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/tal-tech/go-zero/tools/goctl/model/sql/builderx"
+)
+
+var (
+	studentFieldNames          = builderx.FieldNames(&Student{})
+	studentRows                = strings.Join(studentFieldNames, ",")
+	studentRowsExpectAutoSet   = strings.Join(stringx.Remove(studentFieldNames, "`id`", "`create_time`", "`update_time`"), ",")
+	studentRowsWithPlaceHolder = strings.Join(stringx.Remove(studentFieldNames, "`id`", "`create_time`", "`update_time`"), "=?,") + "=?"
+
+	cacheStudentIdPrefix = "cache#Student#id#"
+)
+
+type (
+	StudentModel interface {
+		Insert(data Student) (sql.Result, error)
+		FindOne(id int64) (*Student, error)
+		Update(data Student) error
+		Delete(id int64) error
+	}
+
+	defaultStudentModel struct {
+		sqlc.CachedConn
+		table string
+	}
+
+	Student struct {
+		Id         int64           `db:"id"`
+		Name       string          `db:"name"`
+		Age        sql.NullInt64   `db:"age"`
+		Score      sql.NullFloat64 `db:"score"`
+		CreateTime time.Time       `db:"create_time"`
+		UpdateTime sql.NullTime    `db:"update_time"`
+	}
+)
+
+func NewStudentModel(conn sqlx.SqlConn, c cache.CacheConf) StudentModel {
+	return &defaultStudentModel{
+		CachedConn: sqlc.NewConn(conn, c),
+		table:      "`student`",
+	}
+}
+
+func (m *defaultStudentModel) Insert(data Student) (sql.Result, error) {
+	query := fmt.Sprintf("insert into %s (%s) values (?, ?, ?)", m.table, studentRowsExpectAutoSet)
+	ret, err := m.ExecNoCache(query, data.Name, data.Age, data.Score)
+
+	return ret, err
+}
+
+func (m *defaultStudentModel) FindOne(id int64) (*Student, error) {
+	studentIdKey := fmt.Sprintf("%s%v", cacheStudentIdPrefix, id)
+	var resp Student
+	err := m.QueryRow(&resp, studentIdKey, func(conn sqlx.SqlConn, v interface{}) error {
+		query := fmt.Sprintf("select %s from %s where `id` = ? limit 1", studentRows, m.table)
+		return conn.QueryRow(v, query, id)
+	})
+	switch err {
+	case nil:
+		return &resp, nil
+	case sqlc.ErrNotFound:
+		return nil, ErrNotFound
+	default:
+		return nil, err
+	}
+}
+
+func (m *defaultStudentModel) Update(data Student) error {
+	studentIdKey := fmt.Sprintf("%s%v", cacheStudentIdPrefix, data.Id)
+	_, err := m.Exec(func(conn sqlx.SqlConn) (result sql.Result, err error) {
+		query := fmt.Sprintf("update %s set %s where `id` = ?", m.table, studentRowsWithPlaceHolder)
+		return conn.Exec(query, data.Name, data.Age, data.Score, data.Id)
+	}, studentIdKey)
+	return err
+}
+
+func (m *defaultStudentModel) Delete(id int64) error {
+
+	studentIdKey := fmt.Sprintf("%s%v", cacheStudentIdPrefix, id)
+	_, err := m.Exec(func(conn sqlx.SqlConn) (result sql.Result, err error) {
+		query := fmt.Sprintf("delete from %s where `id` = ?", m.table)
+		return conn.Exec(query, id)
+	}, studentIdKey)
+	return err
+}
+
+func (m *defaultStudentModel) formatPrimary(primary interface{}) string {
+	return fmt.Sprintf("%s%v", cacheStudentIdPrefix, primary)
+}
+
+func (m *defaultStudentModel) queryPrimary(conn sqlx.SqlConn, v, primary interface{}) error {
+	query := fmt.Sprintf("select %s from %s where `id` = ? limit 1", studentRows, m.table)
+	return conn.QueryRow(v, query, primary)
+}