添加视频案例实现层

server/internal/video_case/internal/model/vars.go

@@ -0,0 +1,5 @@
+package model
+
+import "github.com/zeromicro/go-zero/core/stores/sqlx"
+
+var ErrNotFound = sqlx.ErrNotFound

server/internal/video_case/internal/model/videocasemodel.go

@@ -0,0 +1,29 @@
+package model
+
+import "github.com/zeromicro/go-zero/core/stores/sqlx"
+
+var _ VideoCaseModel = (*customVideoCaseModel)(nil)
+
+type (
+	// VideoCaseModel is an interface to be customized, add more methods here,
+	// and implement the added methods in customVideoCaseModel.
+	VideoCaseModel interface {
+		videoCaseModel
+		withSession(session sqlx.Session) VideoCaseModel
+	}
+
+	customVideoCaseModel struct {
+		*defaultVideoCaseModel
+	}
+)
+
+// NewVideoCaseModel returns a model for the database table.
+func NewVideoCaseModel(conn sqlx.SqlConn) VideoCaseModel {
+	return &customVideoCaseModel{
+		defaultVideoCaseModel: newVideoCaseModel(conn),
+	}
+}
+
+func (m *customVideoCaseModel) withSession(session sqlx.Session) VideoCaseModel {
+	return NewVideoCaseModel(sqlx.NewSqlConnFromSession(session))
+}

server/internal/video_case/internal/model/videocasemodel_gen.go

@@ -0,0 +1,93 @@
+// Code generated by goctl. DO NOT EDIT.
+// versions:
+//  goctl version: 1.9.2
+
+package model
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/zeromicro/go-zero/core/stores/builder"
+	"github.com/zeromicro/go-zero/core/stores/sqlx"
+	"github.com/zeromicro/go-zero/core/stringx"
+)
+
+var (
+	videoCaseFieldNames          = builder.RawFieldNames(&VideoCase{})
+	videoCaseRows                = strings.Join(videoCaseFieldNames, ",")
+	videoCaseRowsExpectAutoSet   = strings.Join(stringx.Remove(videoCaseFieldNames, "`id`", "`create_at`", "`create_time`", "`created_at`", "`update_at`", "`update_time`", "`updated_at`"), ",")
+	videoCaseRowsWithPlaceHolder = strings.Join(stringx.Remove(videoCaseFieldNames, "`id`", "`create_at`", "`create_time`", "`created_at`", "`update_at`", "`update_time`", "`updated_at`"), "=?,") + "=?"
+)
+
+type (
+	videoCaseModel interface {
+		Insert(ctx context.Context, data *VideoCase) (sql.Result, error)
+		FindOne(ctx context.Context, id int64) (*VideoCase, error)
+		Update(ctx context.Context, data *VideoCase) error
+		Delete(ctx context.Context, id int64) error
+	}
+
+	defaultVideoCaseModel struct {
+		conn  sqlx.SqlConn
+		table string
+	}
+
+	VideoCase struct {
+		Id            int64          `db:"id"`             // 视频案例ID（主键）
+		Title         string         `db:"title"`          // 视频案例标题
+		Intro         sql.NullString `db:"intro"`          // 视频简介（描述案例背景、内容等）
+		VideoUrl      string         `db:"video_url"`      // 视频播放地址（如MP4 URL、视频平台嵌入链接）
+		DesignerNames string         `db:"designer_names"` // 设计人员名单（多人用逗号分隔）
+		TutorNames    string         `db:"tutor_names"`    // 指导老师名单（多人用逗号分隔）
+		Sort          int64          `db:"sort"`           // 排序（数字越小越靠前）
+		CreateTime    time.Time      `db:"create_time"`    // 创建时间
+		UpdateTime    time.Time      `db:"update_time"`    // 更新时间
+	}
+)
+
+func newVideoCaseModel(conn sqlx.SqlConn) *defaultVideoCaseModel {
+	return &defaultVideoCaseModel{
+		conn:  conn,
+		table: "`video_case`",
+	}
+}
+
+func (m *defaultVideoCaseModel) Delete(ctx context.Context, id int64) error {
+	query := fmt.Sprintf("delete from %s where `id` = ?", m.table)
+	_, err := m.conn.ExecCtx(ctx, query, id)
+	return err
+}
+
+func (m *defaultVideoCaseModel) FindOne(ctx context.Context, id int64) (*VideoCase, error) {
+	query := fmt.Sprintf("select %s from %s where `id` = ? limit 1", videoCaseRows, m.table)
+	var resp VideoCase
+	err := m.conn.QueryRowCtx(ctx, &resp, query, id)
+	switch err {
+	case nil:
+		return &resp, nil
+	case sqlx.ErrNotFound:
+		return nil, ErrNotFound
+	default:
+		return nil, err
+	}
+}
+
+func (m *defaultVideoCaseModel) Insert(ctx context.Context, data *VideoCase) (sql.Result, error) {
+	query := fmt.Sprintf("insert into %s (%s) values (?, ?, ?, ?, ?, ?)", m.table, videoCaseRowsExpectAutoSet)
+	ret, err := m.conn.ExecCtx(ctx, query, data.Title, data.Intro, data.VideoUrl, data.DesignerNames, data.TutorNames, data.Sort)
+	return ret, err
+}
+
+func (m *defaultVideoCaseModel) Update(ctx context.Context, data *VideoCase) error {
+	query := fmt.Sprintf("update %s set %s where `id` = ?", m.table, videoCaseRowsWithPlaceHolder)
+	_, err := m.conn.ExecCtx(ctx, query, data.Title, data.Intro, data.VideoUrl, data.DesignerNames, data.TutorNames, data.Sort, data.Id)
+	return err
+}
+
+func (m *defaultVideoCaseModel) tableName() string {
+	return m.table
+}