From d0a8a0b7dc985df3cfc42f841b92964469394b49 Mon Sep 17 00:00:00 2001
From: Luca Steeb <contact@luca-steeb.com>
Date: Tue, 26 Oct 2021 16:46:18 +0700
Subject: [PATCH] fix(ast): introduce list read filters (#651)

---
 generator/ast/transform/models.go      |  2 +-
 generator/ast/transform/readfilters.go | 21 +++++++++++++++------
 generator/templates/query.gotpl        |  2 +-
 3 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/generator/ast/transform/models.go b/generator/ast/transform/models.go
index 95716a1b..4c6a30d1 100644
--- a/generator/ast/transform/models.go
+++ b/generator/ast/transform/models.go
@@ -11,7 +11,7 @@ type Model struct {
 	Indexes []Index      `json:"indexes"`
 
 	// TODO remove this and apply all required data directly to model
-	OldModel dmmf.Model
+	OldModel dmmf.Model `json:"-"`
 }
 
 type Field struct {
diff --git a/generator/ast/transform/readfilters.go b/generator/ast/transform/readfilters.go
index dc299985..db1577c9 100644
--- a/generator/ast/transform/readfilters.go
+++ b/generator/ast/transform/readfilters.go
@@ -7,6 +7,8 @@ import (
 	"github.com/prisma/prisma-client-go/generator/types"
 )
 
+const list = "List"
+
 func (r *AST) readFilters() []Filter {
 	var filters []Filter
 	for _, scalar := range r.Scalars {
@@ -21,22 +23,26 @@ func (r *AST) readFilters() []Filter {
 			},
 		}
 
-		var fields []Method
 		for _, c := range combinations {
 			p := r.pick(c...)
 			if p == nil {
 				continue
 			}
+			var fields []Method
 			for _, field := range p.Fields {
 				if method := convertField(field); method != nil {
 					fields = append(fields, *method)
 				}
 			}
+			s := scalar
+			if strings.Contains(p.Name.String(), "ListFilter") {
+				s += list
+			}
+			filters = append(filters, Filter{
+				Name:    s,
+				Methods: fields,
+			})
 		}
-		filters = append(filters, Filter{
-			Name:    scalar,
-			Methods: fields,
-		})
 	}
 	for _, enum := range r.Enums {
 		p := r.pick(
@@ -63,9 +69,12 @@ func (r *AST) readFilters() []Filter {
 }
 
 // ReadFilter returns a filter for a read operation by scalar
-func (r *AST) ReadFilter(scalar string) *Filter {
+func (r *AST) ReadFilter(scalar string, isList bool) *Filter {
 	scalar = strings.Replace(scalar, "NullableFilter", "", 1)
 	scalar = strings.Replace(scalar, "ReadFilter", "", 1)
+	if isList {
+		scalar += list
+	}
 	for _, filter := range r.ReadFilters {
 		if filter.Name == scalar {
 			return &filter
diff --git a/generator/templates/query.gotpl b/generator/templates/query.gotpl
index bae01469..c7a1a146 100644
--- a/generator/templates/query.gotpl
+++ b/generator/templates/query.gotpl
@@ -441,7 +441,7 @@
 		{{ end }}
 
 		{{/* Provide field and type-specific methods. */}}
-		{{ $readType := $.AST.ReadFilter $field.Type.String }}
+		{{ $readType := $.AST.ReadFilter $field.Type.String $field.IsList }}
 		{{ if $readType }}
 			{{ range $method := $readType.Methods }}
 				{{ if ne $method.Deprecated "" }}