This commit is contained in:
xing 2022-11-05 20:59:49 +08:00
parent 51e95a3e62
commit 9cb43ed132
5 changed files with 282 additions and 208 deletions

View File

@ -2,7 +2,6 @@ FROM golang:latest
COPY ./ /go/src/wp-go
WORKDIR /go/src/wp-go
#ENV GOPROXY="https://goproxy.cn"
#ENV CGO=0
RUN go build -tags netgo
FROM alpine:latest

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@ -288,3 +288,23 @@ func SimpleSort[T any](arr []T, fn func(i, j T) bool) {
sort.Sort(slice)
return
}
func Min[T IntNumber | ~float64 | ~float32](a ...T) T {
min := a[0]
for _, t := range a {
if min > t {
min = t
}
}
return min
}
func Max[T IntNumber | ~float64 | ~float32](a ...T) T {
max := a[0]
for _, t := range a {
if max < t {
max = t
}
}
return max
}

View File

@ -660,3 +660,51 @@ func TestSimpleSort(t *testing.T) {
})
}
}
func TestMin(t *testing.T) {
type args struct {
a []int
}
tests := []struct {
name string
args args
want int
}{
{
name: "t1",
args: args{a: []int{1, 2, 3}},
want: 1,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := Min(tt.args.a...); got != tt.want {
t.Errorf("Min() = %v, want %v", got, tt.want)
}
})
}
}
func TestMax(t *testing.T) {
type args struct {
a []int
}
tests := []struct {
name string
args args
want int
}{
{
name: "t1",
args: args{a: []int{1, 2, 3}},
want: 3,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := Max(tt.args.a...); got != tt.want {
t.Errorf("Max() = %v, want %v", got, tt.want)
}
})
}
}

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@ -2,12 +2,9 @@ package models
import (
"fmt"
"github/fthvgb1/wp-go/db"
"github/fthvgb1/wp-go/helper"
"math/rand"
"strconv"
"strings"
"time"
)
var _ ParseWhere = SqlBuilder{}
@ -180,207 +177,3 @@ func (w SqlBuilder) parseJoin() string {
}
return s.String()
}
func SimplePagination[T Model](where ParseWhere, fields, group string, page, pageSize int, order SqlBuilder, join SqlBuilder, having SqlBuilder, in ...[]any) (r []T, total int, err error) {
var rr T
var w string
var args []any
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, total, err
}
}
h := ""
if having != nil {
hh, arg, err := having.ParseWhere(&in)
if err != nil {
return r, total, err
}
args = append(args, arg...)
h = strings.Replace(hh, " where", " having", 1)
}
n := struct {
N int `db:"n" json:"n"`
}{}
groupBy := ""
if group != "" {
g := strings.Builder{}
g.WriteString(" group by ")
g.WriteString(group)
groupBy = g.String()
}
if having != nil {
tm := map[string]struct{}{}
for _, s := range strings.Split(group, ",") {
tm[s] = struct{}{}
}
for _, ss := range having {
if _, ok := tm[ss[0]]; !ok {
group = fmt.Sprintf("%s,%s", group, ss[0])
}
}
group = strings.Trim(group, ",")
}
j := join.parseJoin()
if group == "" {
tpx := "select count(*) n from %s %s %s limit 1"
sq := fmt.Sprintf(tpx, rr.Table(), j, w)
err = db.Db.Get(&n, sq, args...)
} else {
tpx := "select count(*) n from (select %s from %s %s %s %s %s ) %s"
rand.Seed(int64(time.Now().Nanosecond()))
sq := fmt.Sprintf(tpx, group, rr.Table(), j, w, groupBy, h, fmt.Sprintf("table%d", rand.Int()))
err = db.Db.Get(&n, sq, args...)
}
if err != nil {
return
}
if n.N == 0 {
return
}
total = n.N
offset := 0
if page > 1 {
offset = (page - 1) * pageSize
}
if offset >= total {
return
}
tp := "select %s from %s %s %s %s %s %s limit %d,%d"
sql := fmt.Sprintf(tp, fields, rr.Table(), j, w, groupBy, h, order.parseOrderBy(), offset, pageSize)
err = db.Db.Select(&r, sql, args...)
if err != nil {
return
}
return
}
func FindOneById[T Model, I helper.IntNumber](id I) (T, error) {
var r T
sql := fmt.Sprintf("select * from `%s` where `%s`=?", r.Table(), r.PrimaryKey())
err := db.Db.Get(&r, sql, id)
if err != nil {
return r, err
}
return r, nil
}
func FirstOne[T Model](where ParseWhere, fields string, order SqlBuilder, in ...[]any) (T, error) {
var r T
var w string
var args []any
var err error
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
tp := "select %s from %s %s %s"
sql := fmt.Sprintf(tp, fields, r.Table(), w, order.parseOrderBy())
err = db.Db.Get(&r, sql, args...)
if err != nil {
return r, err
}
return r, nil
}
func LastOne[T Model](where ParseWhere, fields string, in ...[]any) (T, error) {
var r T
var w string
var args []any
var err error
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
tp := "select %s from %s %s order by %s desc limit 1"
sql := fmt.Sprintf(tp, fields, r.Table(), w, r.PrimaryKey())
err = db.Db.Get(&r, sql, args...)
if err != nil {
return r, err
}
return r, nil
}
func SimpleFind[T Model](where ParseWhere, fields string, in ...[]any) ([]T, error) {
var r []T
var rr T
var err error
var args []any
var w string
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
tp := "select %s from %s %s"
sql := fmt.Sprintf(tp, fields, rr.Table(), w)
err = db.Db.Select(&r, sql, args...)
if err != nil {
return r, err
}
return r, nil
}
func Select[T Model](sql string, params ...any) ([]T, error) {
var r []T
var rr T
sql = strings.Replace(sql, "{table}", rr.Table(), -1)
err := db.Db.Select(&r, sql, params...)
if err != nil {
return r, err
}
return r, nil
}
func Find[T Model](where ParseWhere, fields, group string, order SqlBuilder, join SqlBuilder, having SqlBuilder, limit int, in ...[]any) (r []T, err error) {
var rr T
w := ""
var args []any
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
h := ""
if having != nil {
hh, arg, err := having.ParseWhere(&in)
if err != nil {
return r, err
}
args = append(args, arg...)
h = strings.Replace(hh, " where", " having", 1)
}
j := join.parseJoin()
groupBy := ""
if group != "" {
g := strings.Builder{}
g.WriteString(" group by ")
g.WriteString(group)
groupBy = g.String()
}
tp := "select %s from %s %s %s %s %s %s %s"
l := ""
if limit > 0 {
l = fmt.Sprintf(" limit %d", limit)
}
sql := fmt.Sprintf(tp, fields, rr.Table(), j, w, groupBy, h, order.parseOrderBy(), l)
err = db.Db.Select(&r, sql, args...)
return
}
func Get[T Model](sql string, params ...any) (r T, err error) {
sql = strings.Replace(sql, "{table}", r.Table(), -1)
err = db.Db.Get(&r, sql, params...)
return
}

214
models/query.go Normal file
View File

@ -0,0 +1,214 @@
package models
import (
"fmt"
"github/fthvgb1/wp-go/db"
"github/fthvgb1/wp-go/helper"
"math/rand"
"strings"
"time"
)
func SimplePagination[T Model](where ParseWhere, fields, group string, page, pageSize int, order SqlBuilder, join SqlBuilder, having SqlBuilder, in ...[]any) (r []T, total int, err error) {
var rr T
var w string
var args []any
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, total, err
}
}
h := ""
if having != nil {
hh, arg, err := having.ParseWhere(&in)
if err != nil {
return r, total, err
}
args = append(args, arg...)
h = strings.Replace(hh, " where", " having", 1)
}
n := struct {
N int `db:"n" json:"n"`
}{}
groupBy := ""
if group != "" {
g := strings.Builder{}
g.WriteString(" group by ")
g.WriteString(group)
groupBy = g.String()
}
if having != nil {
tm := map[string]struct{}{}
for _, s := range strings.Split(group, ",") {
tm[s] = struct{}{}
}
for _, ss := range having {
if _, ok := tm[ss[0]]; !ok {
group = fmt.Sprintf("%s,%s", group, ss[0])
}
}
group = strings.Trim(group, ",")
}
j := join.parseJoin()
if group == "" {
tpx := "select count(*) n from %s %s %s limit 1"
sq := fmt.Sprintf(tpx, rr.Table(), j, w)
err = db.Db.Get(&n, sq, args...)
} else {
tpx := "select count(*) n from (select %s from %s %s %s %s %s ) %s"
rand.Seed(int64(time.Now().Nanosecond()))
sq := fmt.Sprintf(tpx, group, rr.Table(), j, w, groupBy, h, fmt.Sprintf("table%d", rand.Int()))
err = db.Db.Get(&n, sq, args...)
}
if err != nil {
return
}
if n.N == 0 {
return
}
total = n.N
offset := 0
if page > 1 {
offset = (page - 1) * pageSize
}
if offset >= total {
return
}
tp := "select %s from %s %s %s %s %s %s limit %d,%d"
sql := fmt.Sprintf(tp, fields, rr.Table(), j, w, groupBy, h, order.parseOrderBy(), offset, pageSize)
err = db.Db.Select(&r, sql, args...)
if err != nil {
return
}
return
}
func FindOneById[T Model, I helper.IntNumber](id I) (T, error) {
var r T
sql := fmt.Sprintf("select * from `%s` where `%s`=?", r.Table(), r.PrimaryKey())
err := db.Db.Get(&r, sql, id)
if err != nil {
return r, err
}
return r, nil
}
func FirstOne[T Model](where ParseWhere, fields string, order SqlBuilder, in ...[]any) (T, error) {
var r T
var w string
var args []any
var err error
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
tp := "select %s from %s %s %s"
sql := fmt.Sprintf(tp, fields, r.Table(), w, order.parseOrderBy())
err = db.Db.Get(&r, sql, args...)
if err != nil {
return r, err
}
return r, nil
}
func LastOne[T Model](where ParseWhere, fields string, in ...[]any) (T, error) {
var r T
var w string
var args []any
var err error
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
tp := "select %s from %s %s order by %s desc limit 1"
sql := fmt.Sprintf(tp, fields, r.Table(), w, r.PrimaryKey())
err = db.Db.Get(&r, sql, args...)
if err != nil {
return r, err
}
return r, nil
}
func SimpleFind[T Model](where ParseWhere, fields string, in ...[]any) ([]T, error) {
var r []T
var rr T
var err error
var args []any
var w string
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
tp := "select %s from %s %s"
sql := fmt.Sprintf(tp, fields, rr.Table(), w)
err = db.Db.Select(&r, sql, args...)
if err != nil {
return r, err
}
return r, nil
}
func Select[T Model](sql string, params ...any) ([]T, error) {
var r []T
var rr T
sql = strings.Replace(sql, "{table}", rr.Table(), -1)
err := db.Db.Select(&r, sql, params...)
if err != nil {
return r, err
}
return r, nil
}
func Find[T Model](where ParseWhere, fields, group string, order SqlBuilder, join SqlBuilder, having SqlBuilder, limit int, in ...[]any) (r []T, err error) {
var rr T
w := ""
var args []any
if where != nil {
w, args, err = where.ParseWhere(&in)
if err != nil {
return r, err
}
}
h := ""
if having != nil {
hh, arg, err := having.ParseWhere(&in)
if err != nil {
return r, err
}
args = append(args, arg...)
h = strings.Replace(hh, " where", " having", 1)
}
j := join.parseJoin()
groupBy := ""
if group != "" {
g := strings.Builder{}
g.WriteString(" group by ")
g.WriteString(group)
groupBy = g.String()
}
tp := "select %s from %s %s %s %s %s %s %s"
l := ""
if limit > 0 {
l = fmt.Sprintf(" limit %d", limit)
}
sql := fmt.Sprintf(tp, fields, rr.Table(), j, w, groupBy, h, order.parseOrderBy(), l)
err = db.Db.Select(&r, sql, args...)
return
}
func Get[T Model](sql string, params ...any) (r T, err error) {
sql = strings.Replace(sql, "{table}", r.Table(), -1)
err = db.Db.Get(&r, sql, params...)
return
}