完成课程教师Model

server/internal/course_teacher/internal/model/courseteachermodel.go

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

server/internal/course_teacher/internal/model/courseteachermodel_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"
+
+	"github.com/zeromicro/go-zero/core/stores/builder"
+	"github.com/zeromicro/go-zero/core/stores/sqlx"
+	"github.com/zeromicro/go-zero/core/stringx"
+)
+
+var (
+	courseTeacherFieldNames          = builder.RawFieldNames(&CourseTeacher{})
+	courseTeacherRows                = strings.Join(courseTeacherFieldNames, ",")
+	courseTeacherRowsExpectAutoSet   = strings.Join(stringx.Remove(courseTeacherFieldNames, "`id`", "`create_at`", "`create_time`", "`created_at`", "`update_at`", "`update_time`", "`updated_at`"), ",")
+	courseTeacherRowsWithPlaceHolder = strings.Join(stringx.Remove(courseTeacherFieldNames, "`id`", "`create_at`", "`create_time`", "`created_at`", "`update_at`", "`update_time`", "`updated_at`"), "=?,") + "=?"
+)
+
+type (
+	courseTeacherModel interface {
+		Insert(ctx context.Context, data *CourseTeacher) (sql.Result, error)
+		FindOne(ctx context.Context, id int64) (*CourseTeacher, error)
+		Update(ctx context.Context, data *CourseTeacher) error
+		Delete(ctx context.Context, id int64) error
+	}
+
+	defaultCourseTeacherModel struct {
+		conn  sqlx.SqlConn
+		table string
+	}
+
+	CourseTeacher struct {
+		Id        int64          `db:"id"`         // 关联ID（主键，自增）
+		CourseId  int64          `db:"course_id"`  // 关联课程ID
+		TeacherId int64          `db:"teacher_id"` // 教师ID（关联用户表user.id）
+		Name      string         `db:"name"`       // 教师姓名
+		Title     string         `db:"title"`      // 教师头衔（如“XXX大学教授”）
+		Avatar    string         `db:"avatar"`     // 教师头像URL
+		Intro     sql.NullString `db:"intro"`      // 教师简介
+		Sort      int64          `db:"sort"`       // 排序（团队展示顺序，数值越小越靠前）
+	}
+)
+
+func newCourseTeacherModel(conn sqlx.SqlConn) *defaultCourseTeacherModel {
+	return &defaultCourseTeacherModel{
+		conn:  conn,
+		table: "`course_teacher`",
+	}
+}
+
+func (m *defaultCourseTeacherModel) 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 *defaultCourseTeacherModel) FindOne(ctx context.Context, id int64) (*CourseTeacher, error) {
+	query := fmt.Sprintf("select %s from %s where `id` = ? limit 1", courseTeacherRows, m.table)
+	var resp CourseTeacher
+	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 *defaultCourseTeacherModel) Insert(ctx context.Context, data *CourseTeacher) (sql.Result, error) {
+	query := fmt.Sprintf("insert into %s (%s) values (?, ?, ?, ?, ?, ?, ?)", m.table, courseTeacherRowsExpectAutoSet)
+	ret, err := m.conn.ExecCtx(ctx, query, data.CourseId, data.TeacherId, data.Name, data.Title, data.Avatar, data.Intro, data.Sort)
+	return ret, err
+}
+
+func (m *defaultCourseTeacherModel) Update(ctx context.Context, data *CourseTeacher) error {
+	query := fmt.Sprintf("update %s set %s where `id` = ?", m.table, courseTeacherRowsWithPlaceHolder)
+	_, err := m.conn.ExecCtx(ctx, query, data.CourseId, data.TeacherId, data.Name, data.Title, data.Avatar, data.Intro, data.Sort, data.Id)
+	return err
+}
+
+func (m *defaultCourseTeacherModel) tableName() string {
+	return m.table
+}

server/internal/course_teacher/internal/model/vars.go

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