mirror of
https://gitee.com/dromara/mayfly-go
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144 lines
3.0 KiB
Go
144 lines
3.0 KiB
Go
package gormx
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import (
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"fmt"
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"mayfly-go/pkg/consts"
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"mayfly-go/pkg/global"
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"mayfly-go/pkg/utils"
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"strings"
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"gorm.io/gorm"
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)
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type QueryCond struct {
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selectColumns string // 查询的列信息
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joins string // join 类似 left join emails on emails.user_id = users.id
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dbModel any // 数据库模型
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condModel any // 条件模型
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columns []string // 查询的所有列（与values一一对应）
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values []any // 查询列对应的值
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orderBy []string
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}
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// NewQuery 构建查询条件
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func NewQuery(dbModel any) *QueryCond {
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return &QueryCond{dbModel: dbModel}
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}
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func (q *QueryCond) WithCondModel(condModel any) *QueryCond {
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q.condModel = condModel
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return q
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}
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func (q *QueryCond) WithOrderBy(orderBy ...string) *QueryCond {
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q.orderBy = append(q.orderBy, orderBy...)
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return q
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}
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func (q *QueryCond) Select(columns ...string) *QueryCond {
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q.selectColumns = strings.Join(columns, ",")
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return q
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}
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func (q *QueryCond) Joins(joins string) *QueryCond {
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q.joins = joins
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return q
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}
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// Eq 等于 =
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func (q *QueryCond) Eq(column string, val any) *QueryCond {
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return q.Cond(consts.Eq, column, val)
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}
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func (q *QueryCond) Like(column string, val string) *QueryCond {
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if val == "" {
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return q
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}
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return q.Cond(consts.Like, column, "%"+val+"%")
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}
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func (q *QueryCond) RLike(column string, val string) *QueryCond {
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if val == "" {
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return q
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}
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return q.Cond(consts.Like, column, val+"%")
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}
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func (q *QueryCond) In(column string, val any) *QueryCond {
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return q.Cond(consts.In, column, val)
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}
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func (q *QueryCond) OrderByDesc(column string) *QueryCond {
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q.orderBy = append(q.orderBy, fmt.Sprintf("%s DESC", column))
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return q
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}
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func (q *QueryCond) OrderByAsc(column string) *QueryCond {
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q.orderBy = append(q.orderBy, fmt.Sprintf("%s ASC", column))
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return q
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}
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func (q *QueryCond) GenGdb() *gorm.DB {
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gdb := global.Db.Model(q.dbModel)
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if q.selectColumns != "" {
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gdb.Select(q.selectColumns)
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}
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if q.joins != "" {
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gdb.Joins(q.joins)
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}
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if q.condModel != nil {
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gdb.Where(q.condModel)
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}
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for i, v := range q.columns {
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gdb.Where(v, q.values[i])
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}
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if len(q.orderBy) > 0 {
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gdb.Order(strings.Join(q.orderBy, ","))
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} else {
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gdb.Order("id desc")
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}
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return gdb
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}
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// // Ne 不等于 !=
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func (q *QueryCond) Ne(column string, val any) *QueryCond {
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q.Cond(consts.Ne, column, val)
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return q
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}
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// Gt 大于 >
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func (q *QueryCond) Gt(column string, val any) *QueryCond {
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q.Cond(consts.Gt, column, val)
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return q
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}
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// Ge 大于等于 >=
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func (q *QueryCond) Ge(column string, val any) *QueryCond {
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q.Cond(consts.Ge, column, val)
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return q
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}
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// Lt 小于 <
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func (q *QueryCond) Lt(column string, val any) *QueryCond {
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q.Cond(consts.Lt, column, val)
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return q
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}
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// Le 小于等于 <=
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func (q *QueryCond) Le(column string, val any) *QueryCond {
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q.Cond(consts.Le, column, val)
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return q
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}
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func (q *QueryCond) Cond(cond, column string, val any) *QueryCond {
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// 零值跳过
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if utils.IsBlank(val) {
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return q
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}
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q.columns = append(q.columns, fmt.Sprintf("%s %s ?", column, cond))
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q.values = append(q.values, val)
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return q
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}
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