小优化，查询添加 column函数

internal/pkg/dao/comments.go

@@ -2,22 +2,26 @@ package dao
 
 import (
 	"context"
+	"github.com/fthvgb1/wp-go/helper/number"
 	"github.com/fthvgb1/wp-go/helper/slice"
 	"github.com/fthvgb1/wp-go/internal/pkg/models"
 	"github.com/fthvgb1/wp-go/model"
-	"strconv"
 )
 
 // RecentComments
 // param context.Context
 func RecentComments(a ...any) (r []models.Comments, err error) {
 	ctx := a[0].(context.Context)
-	return model.Find[models.Comments](ctx, model.SqlBuilder{
-		{"comment_approved", "1"},
-		{"post_status", "publish"},
-	}, "comment_ID,comment_author,comment_post_ID,post_title", "", model.SqlBuilder{{"comment_date_gmt", "desc"}}, model.SqlBuilder{
-		{"a", "left join", "wp_posts b", "a.comment_post_ID=b.ID"},
-	}, nil, 10)
+	return model.Finds[models.Comments](ctx, model.Conditions(
+		model.Where(model.SqlBuilder{
+			{"comment_approved", "1"},
+			{"post_status", "publish"},
+		}),
+		model.Fields("comment_ID,comment_author,comment_post_ID,post_title"),
+		model.Order(model.SqlBuilder{{"comment_date_gmt", "desc"}}),
+		model.Join(model.SqlBuilder{{"a", "left join", "wp_posts b", "a.comment_post_ID=b.ID"}}),
+		model.Limit(10),
+	))
 }
 
 // PostComments
@@ -26,13 +30,17 @@ func RecentComments(a ...any) (r []models.Comments, err error) {
 func PostComments(args ...any) ([]uint64, error) {
 	ctx := args[0].(context.Context)
 	postId := args[1].(uint64)
-	r, err := model.Find[models.Comments](ctx, model.SqlBuilder{
-		{"comment_approved", "1"},
-		{"comment_post_ID", "=", strconv.FormatUint(postId, 10), "int"},
-	}, "comment_ID", "", model.SqlBuilder{
-		{"comment_date_gmt", "asc"},
-		{"comment_ID", "asc"},
-	}, nil, nil, 0)
+	r, err := model.Finds[models.Comments](ctx, model.Conditions(
+		model.Where(model.SqlBuilder{
+			{"comment_approved", "1"},
+			{"comment_post_ID", "=", number.ToString(postId), "int"},
+		}),
+		model.Fields("comment_ID"),
+		model.Order(model.SqlBuilder{
+			{"comment_date_gmt", "asc"},
+			{"comment_ID", "asc"},
+		})),
+	)
 	if err != nil {
 		return nil, err
 	}

model/querycondition.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"github.com/fthvgb1/wp-go/helper/slice"
 	"strings"
 )
 
@@ -169,3 +170,29 @@ func Pagination[T Model](ctx context.Context, q *QueryCondition) ([]T, int, erro
 func DBPagination[T Model](db dbQuery, ctx context.Context, q *QueryCondition) ([]T, int, error) {
 	return pagination[T](db, ctx, q.where, q.fields, q.group, q.page, q.limit, q.order, q.join, q.having, q.in...)
 }
+
+func Column[V Model, T any](ctx context.Context, fn func(V) (T, bool), q *QueryCondition) (r []T, err error) {
+	res, err := finds[V](globalBb, ctx, q)
+	if err != nil {
+		return nil, err
+	}
+	r = slice.FilterAndMap(res, fn)
+	return
+}
+func DBColumn[V Model, T any](db dbQuery, ctx context.Context, fn func(V) (T, bool), q *QueryCondition) (r []T, err error) {
+	res, err := finds[V](db, ctx, q)
+	if err != nil {
+		return nil, err
+	}
+	r = slice.FilterAndMap(res, fn)
+	return
+}
+
+func column[V Model, T any](db dbQuery, ctx context.Context, fn func(V) (T, bool), q *QueryCondition) (r []T, err error) {
+	res, err := finds[V](db, ctx, q)
+	if err != nil {
+		return nil, err
+	}
+	r = slice.FilterAndMap(res, fn)
+	return
+}

model/querycondition_test.go

@@ -230,3 +230,46 @@ func TestPagination(t *testing.T) {
 		})
 	}
 }
+
+func TestColumn(t *testing.T) {
+	type args[V Model, T any] struct {
+		ctx context.Context
+		fn  func(V) (T, bool)
+		q   *QueryCondition
+	}
+	type testCase[V Model, T any] struct {
+		name    string
+		args    args[V, T]
+		wantR   []T
+		wantErr bool
+	}
+	tests := []testCase[post, uint64]{
+		{
+			name: "t1",
+			args: args[post, uint64]{
+				ctx: ctx,
+				fn: func(t post) (uint64, bool) {
+					return t.Id, true
+				},
+				q: Conditions(
+					Where(SqlBuilder{
+						{"ID", "<", "200", "int"},
+					}),
+				),
+			},
+			wantR: []uint64{63, 64, 190, 193},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotR, err := Column[post](tt.args.ctx, tt.args.fn, tt.args.q)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Column() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(gotR, tt.wantR) {
+				t.Errorf("Column() gotR = %v, want %v", gotR, tt.wantR)
+			}
+		})
+	}
+}