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92
entc/gen/template/dialect/sql/feature/modifier.tmpl Normal file
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{{/*
Copyright 2019-present Facebook Inc. All rights reserved.
This source code is licensed under the Apache 2.0 license found
in the LICENSE file in the root directory of this source tree.
*/}}
{{/* gotype: entgo.io/ent/entc/gen.Type */}}
{{/* Templates used by the "sql/modifier" feature-flag to add custom modifiers to the builders. */}}
{{/* Template for adding the "modifiers" field to the query builder. */}}
{{ define "dialect/sql/query/fields/additional/modify" -}}
{{- if or ($.FeatureEnabled "sql/lock") ($.FeatureEnabled "sql/modifier") }}
modifiers []func(*sql.Selector)
{{- end }}
{{- end -}}
{{/* Template for adding the "executing" the list of modifiers on the sql.Selector. */}}
{{ define "dialect/sql/query/selector/modify" }}
{{- if or ($.FeatureEnabled "sql/lock") ($.FeatureEnabled "sql/modifier") }}
{{- $receiver := $.Scope.Receiver }}
for _, m := range {{ $receiver }}.modifiers {
m(selector)
}
{{- end }}
{{- end -}}
{{/* Template for passing the modifiers to the sqlgraph.QuerySpec. */}}
{{ define "dialect/sql/query/spec/modify" }}
{{- if or ($.FeatureEnabled "sql/lock") ($.FeatureEnabled "sql/modifier") }}
{{- $receiver := $.Scope.Receiver }}
if len({{ $receiver }}.modifiers) > 0 {
_spec.Modifiers = {{ $receiver }}.modifiers
}
{{- end }}
{{- end -}}
{{/* A template for adding the Modify method to the query-builder. */}}
{{ define "dialect/sql/query/additional/modify" }}
{{ if $.FeatureEnabled "sql/modifier" }}
{{ $builder := pascal $.Scope.Builder }}
{{ $receiver := $.Scope.Receiver }}
{{ $selectBuilder := pascal $.Name | printf "%sSelect" }}
// Modify adds a query modifier for attaching custom logic to queries.
func ({{ $receiver }} *{{ $builder }}) Modify(modifiers ...func(s *sql.Selector)) *{{ $selectBuilder }} {
{{ $receiver }}.modifiers = append({{ $receiver }}.modifiers, modifiers...)
return {{ $receiver }}.Select()
}
{{ end }}
{{ end }}
{{/* A template for adding the Modify method to the select-builder. */}}
{{ define "dialect/sql/select/additional/modify" }}
{{ if $.FeatureEnabled "sql/modifier" }}
{{ $builder := pascal $.Scope.Builder }}
{{ $receiver := $.Scope.Receiver }}
// Modify adds a query modifier for attaching custom logic to queries.
func ({{ $receiver }} *{{ $builder }}) Modify(modifiers ...func(s *sql.Selector)) *{{ $builder }} {
{{ $receiver }}.modifiers = append({{ $receiver }}.modifiers, modifiers...)
return {{ $receiver }}
}
{{ end }}
{{ end }}
{{/* Template for adding the "modifiers" field to the update builder. */}}
{{ define "dialect/sql/update/fields/additional/modify" -}}
{{- if $.FeatureEnabled "sql/modifier" }}
modifiers []func(*sql.UpdateBuilder)
{{- end }}
{{- end -}}
{{/* A template for adding the Modify method to the update and updateone builders. */}}
{{ define "dialect/sql/update/additional/modify" }}
{{ if $.FeatureEnabled "sql/modifier" }}
{{ $pkg := $.Scope.Package }}
{{ $builder := pascal $.Scope.Builder }}
{{ $receiver := $.Scope.Receiver }}
// Modify adds a statement modifier for attaching custom logic to the UPDATE statement.
func ({{ $receiver }} *{{ $builder }}) Modify(modifiers ...func(u *sql.UpdateBuilder)) *{{ $builder }} {
{{ $receiver }}.modifiers = append({{ $receiver }}.modifiers, modifiers...)
return {{ $receiver }}
}
{{ end }}
{{ end }}
{{/* Template for passing the modifiers to the sqlgraph.UpdateSpec. */}}
{{ define "dialect/sql/update/spec/modify" }}
{{- if $.FeatureEnabled "sql/modifier" }}
{{- $receiver := $.Scope.Receiver }}
_spec.AddModifiers({{ $receiver }}.modifiers...)
{{- end }}
{{- end -}}