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87 lines
2.8 KiB
Cheetah
87 lines
2.8 KiB
Cheetah
{{/*
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Copyright 2019-present Facebook Inc. All rights reserved.
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This source code is licensed under the Apache 2.0 license found
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in the LICENSE file in the root directory of this source tree.
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*/}}
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{{/* gotype: entgo.io/ent/entc/gen.Type */}}
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{{/* constants needed for sql dialects. */}}
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{{ define "dialect/sql/meta/constants" }}
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{{- range $t := $.RelatedTypes }}
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{{- if ne $t.ID.StorageKey $.ID.StorageKey }}
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// {{ $t.Name }}FieldID holds the string denoting the ID field of the {{ $t.Name }}.
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{{ $t.Name }}FieldID = "{{ $t.ID.StorageKey }}"
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{{- end }}
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{{- end }}
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// Table holds the table name of the {{ lower $.Name }} in the database.
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Table = "{{ $.Table }}"
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{{- range $e := $.Edges }}
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// {{ $e.TableConstant }} is the table the holds the {{ $e.Name }} relation/edge.
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{{- if $e.M2M }} The primary key declared below.{{ end }}
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{{ $e.TableConstant }} = "{{ $e.Rel.Table }}"
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{{- if ne $.Table $e.Type.Table }}
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// {{ $e.InverseTableConstant }} is the table name for the {{ $e.Type.Name }} entity.
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// It exists in this package in order to avoid circular dependency with the "{{ $e.Type.Package }}" package.
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{{ $e.InverseTableConstant }} = "{{ $e.Type.Table }}"
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{{- end }}
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{{- if not $e.M2M }}
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// {{ $e.ColumnConstant }} is the table column denoting the {{ $e.Name }} relation/edge.
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{{ $e.ColumnConstant }} = "{{ $e.Rel.Column }}"
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{{- end }}
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{{- end }}
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{{ end }}
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{{/* Variables needed for sql dialects. */}}
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{{ define "dialect/sql/meta/variables" }}
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// Columns holds all SQL columns for {{ lower $.Name }} fields.
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var Columns = []string{
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{{ $.ID.Constant }},
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{{- range $f := $.Fields }}
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{{ $f.Constant }},
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{{- end }}
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}
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{{/* If any of the edges owns a foreign-key */}}
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{{ with $.UnexportedForeignKeys }}
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// ForeignKeys holds the SQL foreign-keys that are owned by the "{{ $.Table }}"
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// table and are not defined as standalone fields in the schema.
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var ForeignKeys = []string{
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{{- range $fk := . }}
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"{{ $fk.Edge.Rel.Column }}",
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{{- end }}
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}
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{{ end }}
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{{ with $.NumM2M }}
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var (
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{{- range $e := $.Edges }}
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{{- if $e.M2M }}
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// {{ $e.PKConstant }} and {{ $e.ColumnConstant }}2 are the table columns denoting the
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// primary key for the {{ $e.Name }} relation (M2M).
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{{ $e.PKConstant }} = []string{"{{ index $e.Rel.Columns 0 }}", "{{ index $e.Rel.Columns 1 }}"}
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{{- end }}
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{{- end }}
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)
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{{ end }}
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{{ end }}
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{{/* functions needed for sql dialects. */}}
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{{ define "dialect/sql/meta/functions" }}
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// ValidColumn reports if the column name is valid (part of the table columns).
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func ValidColumn(column string) bool {
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for i := range Columns {
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if column == Columns[i] {
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return true
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}
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}
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{{- with $.UnexportedForeignKeys }}
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for i := range ForeignKeys {
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if column == ForeignKeys[i] {
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return true
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}
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}
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{{- end }}
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return false
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}
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{{ end }}
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