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package models
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import (
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"errors"
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"fmt"
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"reflect"
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"strings"
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"time"
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"github.com/astaxie/beego/orm"
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)
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type Bulletin struct {
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Id int `orm:"column(id);auto"`
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Title string `orm:"column(title);size(2000)" description:"标题"`
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Content string `orm:"column(content);null" description:"内容"`
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Cover string `orm:"column(cover);size(255);null" description:"封面地址"`
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W int `orm:"column(w);null" description:"宽"`
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H int `orm:"column(h);null" description:"高"`
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Type int8 `orm:"column(type);null" description:"公告类型(0图+跳转链接、1链接)"`
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Receiver string `orm:"column(receiver);null" description:"接收者"`
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QuestionSwitch int8 `orm:"column(question_switch);null" description:"设置问题开关"`
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CreateTime time.Time `orm:"column(createTime);type(timestamp);null" description:"创建时间"`
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UpdateTime time.Time `orm:"column(updateTime);type(timestamp);null" description:"更新时间"`
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AllowClose int8 `orm:"column(allowClose);null" description:"允许关闭公告(0允许,1禁止)"`
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CompanyId int `orm:"column(company_id);null" description:"公司Id"`
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Status uint8 `orm:"column(status)" description:"状态 0-下架 1- 上架"`
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}
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func (t *Bulletin) TableName() string {
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return "bulletin"
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}
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func init() {
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orm.RegisterModel(new(Bulletin))
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}
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// AddBulletin insert a new Bulletin into database and returns
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// last inserted Id on success.
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func AddBulletin(m *Bulletin) (id int64, err error) {
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o := orm.NewOrm()
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id, err = o.Insert(m)
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return
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}
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// GetBulletinById retrieves Bulletin by Id. Returns error if
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// Id doesn't exist
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func GetBulletinById(id int) (v *Bulletin, err error) {
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o := orm.NewOrm()
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v = &Bulletin{Id: id}
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if err = o.Read(v); err == nil {
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return v, nil
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}
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return nil, err
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}
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// GetAllBulletin retrieves all Bulletin matches certain condition. Returns empty list if
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// no records exist
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func GetAllBulletin(query map[string]string, fields []string, sortby []string, order []string,
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offset int64, limit int64) (ml []interface{}, err error) {
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o := orm.NewOrm()
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qs := o.QueryTable(new(Bulletin))
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// query k=v
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for k, v := range query {
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// rewrite dot-notation to Object__Attribute
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k = strings.Replace(k, ".", "__", -1)
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if strings.Contains(k, "isnull") {
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qs = qs.Filter(k, (v == "true" || v == "1"))
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} else {
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qs = qs.Filter(k, v)
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}
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}
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// order by:
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var sortFields []string
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if len(sortby) != 0 {
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if len(sortby) == len(order) {
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// 1) for each sort field, there is an associated order
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for i, v := range sortby {
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orderby := ""
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if order[i] == "desc" {
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orderby = "-" + v
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} else if order[i] == "asc" {
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orderby = v
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} else {
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return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
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}
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sortFields = append(sortFields, orderby)
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}
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qs = qs.OrderBy(sortFields...)
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} else if len(sortby) != len(order) && len(order) == 1 {
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// 2) there is exactly one order, all the sorted fields will be sorted by this order
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for _, v := range sortby {
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orderby := ""
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if order[0] == "desc" {
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orderby = "-" + v
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} else if order[0] == "asc" {
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orderby = v
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} else {
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return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
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}
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sortFields = append(sortFields, orderby)
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}
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} else if len(sortby) != len(order) && len(order) != 1 {
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return nil, errors.New("Error: 'sortby', 'order' sizes mismatch or 'order' size is not 1")
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}
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} else {
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if len(order) != 0 {
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return nil, errors.New("Error: unused 'order' fields")
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}
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}
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var l []Bulletin
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qs = qs.OrderBy(sortFields...)
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if _, err = qs.Limit(limit, offset).All(&l, fields...); err == nil {
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if len(fields) == 0 {
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for _, v := range l {
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ml = append(ml, v)
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}
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} else {
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// trim unused fields
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for _, v := range l {
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m := make(map[string]interface{})
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val := reflect.ValueOf(v)
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for _, fname := range fields {
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m[fname] = val.FieldByName(fname).Interface()
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}
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ml = append(ml, m)
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}
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}
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return ml, nil
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}
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return nil, err
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}
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// UpdateBulletin updates Bulletin by Id and returns error if
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// the record to be updated doesn't exist
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func UpdateBulletinById(m *Bulletin) (err error) {
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o := orm.NewOrm()
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v := Bulletin{Id: m.Id}
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// ascertain id exists in the database
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if err = o.Read(&v); err == nil {
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var num int64
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if num, err = o.Update(m); err == nil {
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fmt.Println("Number of records updated in database:", num)
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}
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}
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return
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}
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// DeleteBulletin deletes Bulletin by Id and returns error if
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// the record to be deleted doesn't exist
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func DeleteBulletin(id int) (err error) {
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o := orm.NewOrm()
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v := Bulletin{Id: id}
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// ascertain id exists in the database
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if err = o.Read(&v); err == nil {
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var num int64
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if num, err = o.Delete(&Bulletin{Id: id}); err == nil {
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fmt.Println("Number of records deleted in database:", num)
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}
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}
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return
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} |
...
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...
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