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First implementation of to_many relations.

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Aaron L 2016-06-26 16:18:23 -07:00
parent fb9653e0a1
commit 0d07bb4e67
1 changed files with 50 additions and 18 deletions
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68
templates/05_relationship_to_many.tpl
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@ -1,25 +1,57 @@
{{- if .Table.IsJoinTable -}}
{{- else -}}
{{- $pkg := .PkgName -}}
{{- $localTable := .Table.Name -}}
{{- $ltable := .Table.Name | singular | titleCase -}}
{{- range $table := .Tables -}}
{{- if eq $table.Name $localTable -}}
{{- $dot := . }}
{{- $table := .Table }}
{{- $localTableSing := .Table.Name | singular -}}
{{- $localTable := $localTableSing | titleCase -}}
{{- $colName := $localTableSing | printf "%s_id" -}}
{{- $receiver := .Table.Name | toLower | substring 0 1 -}}
{{- range toManyRelationships .Table.Name .Tables -}}
{{- $foreignTableSing := .ForeignTable | singular}}
{{- $foreignTable := $foreignTableSing | titleCase}}
{{- $foreignSlice := $foreignTableSing | camelCase | printf "%sSlice"}}
{{- $foreignTableHumanReadable := .ForeignTable | replace "_" " " -}}
{{- $foreignPluralNoun := .ForeignTable | plural | titleCase -}}
{{- $isNormal := eq $colName .ForeignColumn -}}
{{- if $isNormal -}}
// {{$foreignPluralNoun}} retrieves all the {{$localTableSing}}'s {{$foreignTableHumanReadable}}.
func ({{$receiver}} *{{$localTable}}) {{$foreignPluralNoun}}(
{{- else -}}
{{ range $fkey := .FKeys -}}
{{- if eq $localTable $fkey.ForeignTable -}}
{{- $ftable := $table.Name | plural | titleCase -}}
{{- $recv := $localTable | substring 0 1 | toLower -}}
{{- $fn := $ftable -}}
{{- $col := $localTable | singular | printf "%s_id" -}}
{{- if eq $col $fkey.Column -}}
{{- $col := $localTable -}}
{{- end -}}
//func ({{$recv}} *{{$ltable}}) {{$fn}}
{{ end -}}
{{- end -}}
{{- $fnName := .ForeignColumn | remove "_id" | titleCase | printf "%[2]s%[1]s" $foreignPluralNoun -}}
// {{$fnName}} retrieves all the {{$localTableSing}}'s {{$foreignTableHumanReadable}} via {{.ForeignColumn}} column.
func ({{$receiver}} *{{$localTable}}) {{$fnName}}(
{{- end -}}
{{- end -}}
exec boil.Executor, selectCols ...string) ({{$foreignSlice}}, error) {
var ret {{$foreignSlice}}
query := fmt.Sprintf(`select "%s" from {{.ForeignTable}} where "{{.ForeignColumn}}"=$1`, strings.Join(selectCols, `","`))
rows, err := exec.Query(query, {{.Column | titleCase | printf "%s.%s" $receiver }})
if err != nil {
return nil, fmt.Errorf(`{{$dot.PkgName}}: unable to select from {{.ForeignTable}}: %v`, err)
}
defer rows.Close()
for rows.Next() {
next := new({{$foreignTable}})
err = rows.Scan(boil.GetStructPointers(next, selectCols...)...)
if err != nil {
return nil, fmt.Errorf(`{{$dot.PkgName}}: unable to scan into {{$foreignTable}}: %v`, err)
}
ret = append(ret, next)
}
if err = rows.Err(); err != nil {
return nil, fmt.Errorf(`{{$dot.PkgName}}: unable to select from {{.ForeignTable}}: %v`, err)
}
return ret, nil
}
{{end -}}
{{- end -}}
{{/*
// Challengee fetches the Video pointed to by the foreign key.