添加课程文件Model

server/internal/course_file/internal/model/coursefilemodel.go

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

server/internal/course_file/internal/model/coursefilemodel_gen.go

@@ -0,0 +1,91 @@
+// Code generated by goctl. DO NOT EDIT.
+// versions:
+//  goctl version: 1.9.1
+
+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 (
+	courseFileFieldNames          = builder.RawFieldNames(&CourseFile{})
+	courseFileRows                = strings.Join(courseFileFieldNames, ",")
+	courseFileRowsExpectAutoSet   = strings.Join(stringx.Remove(courseFileFieldNames, "`id`", "`create_at`", "`create_time`", "`created_at`", "`update_at`", "`update_time`", "`updated_at`"), ",")
+	courseFileRowsWithPlaceHolder = strings.Join(stringx.Remove(courseFileFieldNames, "`id`", "`create_at`", "`create_time`", "`created_at`", "`update_at`", "`update_time`", "`updated_at`"), "=?,") + "=?"
+)
+
+type (
+	courseFileModel interface {
+		Insert(ctx context.Context, data *CourseFile) (sql.Result, error)
+		FindOne(ctx context.Context, id int64) (*CourseFile, error)
+		Update(ctx context.Context, data *CourseFile) error
+		Delete(ctx context.Context, id int64) error
+	}
+
+	defaultCourseFileModel struct {
+		conn  sqlx.SqlConn
+		table string
+	}
+
+	CourseFile struct {
+		Id         int64     `db:"id"`          // 主键ID
+		ContentId  int64     `db:"content_id"`  // 关联的内容ID（如课程章节ID等）
+		Title      string    `db:"title"`       // 文件标题
+		FileType   string    `db:"file_type"`   // 文件类型（如pdf、video、doc等）
+		FileUrl    string    `db:"file_url"`    // 文件存储URL
+		CreateTime time.Time `db:"create_time"` // 创建时间
+		UpdateTime time.Time `db:"update_time"` // 更新时间（自动更新）
+	}
+)
+
+func newCourseFileModel(conn sqlx.SqlConn) *defaultCourseFileModel {
+	return &defaultCourseFileModel{
+		conn:  conn,
+		table: "`course_file`",
+	}
+}
+
+func (m *defaultCourseFileModel) 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 *defaultCourseFileModel) FindOne(ctx context.Context, id int64) (*CourseFile, error) {
+	query := fmt.Sprintf("select %s from %s where `id` = ? limit 1", courseFileRows, m.table)
+	var resp CourseFile
+	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 *defaultCourseFileModel) Insert(ctx context.Context, data *CourseFile) (sql.Result, error) {
+	query := fmt.Sprintf("insert into %s (%s) values (?, ?, ?, ?)", m.table, courseFileRowsExpectAutoSet)
+	ret, err := m.conn.ExecCtx(ctx, query, data.ContentId, data.Title, data.FileType, data.FileUrl)
+	return ret, err
+}
+
+func (m *defaultCourseFileModel) Update(ctx context.Context, data *CourseFile) error {
+	query := fmt.Sprintf("update %s set %s where `id` = ?", m.table, courseFileRowsWithPlaceHolder)
+	_, err := m.conn.ExecCtx(ctx, query, data.ContentId, data.Title, data.FileType, data.FileUrl, data.Id)
+	return err
+}
+
+func (m *defaultCourseFileModel) tableName() string {
+	return m.table
+}

server/internal/course_file/internal/model/vars.go

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