97 lines
2.8 KiB
Smarty
97 lines
2.8 KiB
Smarty
{{- define "relationship_to_one_eager_helper" -}}
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{{- $dot := .Dot -}}{{/* .Dot holds the root templateData struct, passed in through preserveDot */}}
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{{- $varNameSingular := $dot.Table.Name | singular | camelCase -}}
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{{- with .Rel -}}
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{{- $arg := printf "maybe%s" .LocalTable.NameGo -}}
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{{- $slice := printf "%sSlice" .LocalTable.NameGo}}
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// Load{{.Function.Name}} allows an eager lookup of values, cached into the
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// loaded structs of the objects.
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func ({{$varNameSingular}}L) Load{{.Function.Name}}(e boil.Executor, singular bool, {{$arg}} interface{}) error {
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var slice []*{{.LocalTable.NameGo}}
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var object *{{.LocalTable.NameGo}}
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count := 1
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if singular {
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object = {{$arg}}.(*{{.LocalTable.NameGo}})
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} else {
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slice = *{{$arg}}.(*{{$slice}})
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count = len(slice)
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}
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args := make([]interface{}, count)
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if singular {
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args[0] = object.{{.LocalTable.ColumnNameGo}}
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} else {
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for i, obj := range slice {
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args[i] = obj.{{.LocalTable.ColumnNameGo}}
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}
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}
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query := fmt.Sprintf(
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"select * from {{.ForeignKey.ForeignTable | $dot.SchemaTable}} where {{.ForeignKey.ForeignColumn | $dot.Quotes}} in (%s)",
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strmangle.Placeholders(dialect.IndexPlaceholders, count, 1, 1),
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)
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if boil.DebugMode {
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fmt.Fprintf(boil.DebugWriter, "%s\n%v\n", query, args)
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}
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results, err := e.Query(query, args...)
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if err != nil {
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return errors.Wrap(err, "failed to eager load {{.ForeignTable.NameGo}}")
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}
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defer results.Close()
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var resultSlice []*{{.ForeignTable.NameGo}}
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if err = queries.Bind(results, &resultSlice); err != nil {
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return errors.Wrap(err, "failed to bind eager loaded slice {{.ForeignTable.NameGo}}")
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}
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{{if not $dot.NoHooks -}}
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if len({{.ForeignTable.Name | singular | camelCase}}AfterSelectHooks) != 0 {
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for _, obj := range resultSlice {
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if err := obj.doAfterSelectHooks(e); err != nil {
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return err
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}
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}
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}
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{{- end}}
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if singular && len(resultSlice) != 0 {
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if object.R == nil {
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object.R = &{{$varNameSingular}}R{}
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}
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object.R.{{.Function.Name}} = resultSlice[0]
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return nil
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}
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for _, foreign := range resultSlice {
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for _, local := range slice {
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{{if .Function.UsesBytes -}}
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if 0 == bytes.Compare(local.{{.Function.LocalAssignment}}, foreign.{{.Function.ForeignAssignment}}) {
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{{else -}}
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if local.{{.Function.LocalAssignment}} == foreign.{{.Function.ForeignAssignment}} {
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{{end -}}
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if local.R == nil {
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local.R = &{{$varNameSingular}}R{}
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}
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local.R.{{.Function.Name}} = foreign
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break
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}
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}
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}
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return nil
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}
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{{- end -}}{{- /* end with */ -}}
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{{end -}}{{- /* end define */ -}}
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{{- if .Table.IsJoinTable -}}
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{{- else -}}
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{{- $dot := . -}}
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{{- range .Table.FKeys -}}
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{{- $txt := textsFromForeignKey $dot.PkgName $dot.Tables $dot.Table . -}}
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{{- template "relationship_to_one_eager_helper" (preserveDot $dot $txt) -}}
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{{- end -}}
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{{end}}
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