sqlc/internal/codegen/golang/templates/pgx/queryCode.tmpl at 6e18a48cbed9d6caae7c7c54419fab8d83f1a37d · Jille/sqlc · GitHub

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{{define "queryCodePgx"}}
{{range .GoQueries}}
{{if $.OutputQuery .SourceName}}
{{if ne .Cmd ":copyFrom"}}
const {{.ConstantName}} = {{$.Q}}-- name: {{.MethodName}} {{.Cmd}}
{{escape .SQL}}
{{$.Q}}
{{end}}

{{if .Arg.EmitStruct}}
type {{.Arg.Type}} struct { {{- range .Arg.Struct.Fields}}
  {{.Name}} {{.Type}} {{if or ($.EmitJSONTags) ($.EmitDBTags)}}{{$.Q}}{{.Tag}}{{$.Q}}{{end}}
  {{- end}}
}
{{end}}

{{if .Ret.EmitStruct}}
type {{.Ret.Type}} struct { {{- range .Ret.Struct.Fields}}
  {{.Name}} {{.Type}} {{if or ($.EmitJSONTags) ($.EmitDBTags)}}{{$.Q}}{{.Tag}}{{$.Q}}{{end}}
  {{- end}}
}
{{end}}

{{if eq .Cmd ":one"}}
{{range .Comments}}//{{.}}
{{end -}}
{{- if $.EmitMethodsWithDBArgument}}
func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) ({{.Ret.DefineType}}, error) {
	row := db.QueryRow(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- else -}}
func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) ({{.Ret.DefineType}}, error) {
	row := q.db.QueryRow(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- end}}
	var {{.Ret.Name}} {{.Ret.Type}}
	err := row.Scan({{.Ret.Scan}})
	return {{.Ret.ReturnName}}, err
}
{{end}}

{{if eq .Cmd ":many"}}
{{range .Comments}}//{{.}}
{{end -}}
{{- if $.EmitMethodsWithDBArgument}}
func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) ([]{{.Ret.DefineType}}, error) {
	rows, err := db.Query(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- else}}
func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) ([]{{.Ret.DefineType}}, error) {
	rows, err := q.db.Query(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- end}}
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	{{- if $.EmitEmptySlices}}
	items := []{{.Ret.DefineType}}{}
	{{else}}
	var items []{{.Ret.DefineType}}
	{{end -}}
	for rows.Next() {
		var {{.Ret.Name}} {{.Ret.Type}}
		if err := rows.Scan({{.Ret.Scan}}); err != nil {
			return nil, err
		}
		items = append(items, {{.Ret.ReturnName}})
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}
{{end}}

{{if eq .Cmd ":exec"}}
{{range .Comments}}//{{.}}
{{end -}}
{{- if $.EmitMethodsWithDBArgument}}
func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) error {
	_, err := db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- else}}
func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) error {
	_, err := q.db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- end}}
	return err
}
{{end}}

{{if eq .Cmd ":execrows"}}
{{range .Comments}}//{{.}}
{{end -}}
{{if $.EmitMethodsWithDBArgument}}
func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) (int64, error) {
	result, err := db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- else -}}
func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) (int64, error) {
	result, err := q.db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- end}}
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}
{{end}}

{{if eq .Cmd ":execresult"}}
{{range .Comments}}//{{.}}
{{end -}}
{{if $.EmitMethodsWithDBArgument}}
func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.Pair}}) (pgconn.CommandTag, error) {
	return db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{else}}
func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.Pair}}) (pgconn.CommandTag, error) {
	return q.db.Exec(ctx, {{.ConstantName}}, {{.Arg.Params}})
{{- end}}
}
{{end}}

{{if eq .Cmd ":copyFrom"}}
// iteratorFor{{.MethodName}} implements pgx.CopyFromSource.
type iteratorFor{{.MethodName}} struct {
	rows []{{.Arg.DefineType}}
	skippedFirstNextCall bool
}

func (r *iteratorFor{{.MethodName}}) Next() bool {
	if len(r.rows) == 0 {
		return false
	}
	if !r.skippedFirstNextCall {
		r.skippedFirstNextCall = true
		return true
	}
	r.rows = r.rows[1:]
	return len(r.rows) > 0
}

func (r iteratorFor{{.MethodName}}) Values() ([]interface{}, error) {
	return []interface{}{
{{- if .Arg.Struct }}
{{- range .Arg.Struct.Fields }}
		r.rows[0].{{.Name}},
{{- end }}
{{- else }}
		r.rows[0],
{{- end }}
	}, nil
}

func (r iteratorFor{{.MethodName}}) Err() error {
	return nil
}

{{range .Comments}}//{{.}}
{{end -}}
{{- if $.EmitMethodsWithDBArgument}}
func (q *Queries) {{.MethodName}}(ctx context.Context, db DBTX, {{.Arg.SlicePair}}) (int64, error) {
	return db.CopyFrom(ctx, {{.TableIdentifier}}, {{.Arg.ColumnNames}}, &iteratorFor{{.MethodName}}{rows: {{.Arg.Name}}})
{{- else}}
func (q *Queries) {{.MethodName}}(ctx context.Context, {{.Arg.SlicePair}}) (int64, error) {
	return q.db.CopyFrom(ctx, {{.TableIdentifier}}, {{.Arg.ColumnNames}}, &iteratorFor{{.MethodName}}{rows: {{.Arg.Name}}})
{{- end}}
}
{{end}}

{{end}}
{{end}}
{{end}}