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results.go
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/
results.go
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package extensions
import (
common "github.com/gophercloud/gophercloud/v2/openstack/common/extensions"
"github.com/gophercloud/gophercloud/v2/pagination"
)
// ExtensionPage is a single page of Extension results.
type ExtensionPage struct {
common.ExtensionPage
}
// IsEmpty returns true if the current page contains at least one Extension.
func (page ExtensionPage) IsEmpty() (bool, error) {
is, err := ExtractExtensions(page)
return len(is) == 0, err
}
// ExtractExtensions accepts a Page struct, specifically an ExtensionPage struct, and extracts the
// elements into a slice of Extension structs.
func ExtractExtensions(page pagination.Page) ([]common.Extension, error) {
// Identity v2 adds an intermediate "values" object.
var s struct {
Extensions struct {
Values []common.Extension `json:"values"`
} `json:"extensions"`
}
err := page.(ExtensionPage).ExtractInto(&s)
return s.Extensions.Values, err
}