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package databases
import (
"github.com/mitchellh/mapstructure"
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/pagination"
)
// Database represents a Database API resource.
type Database struct {
// Specifies the name of the MySQL database.
Name string
// Set of symbols and encodings. The default character set is utf8.
CharSet string
// Set of rules for comparing characters in a character set. The default
// value for collate is utf8_general_ci.
Collate string
}
// CreateResult represents the result of a Create operation.
type CreateResult struct {
gophercloud.ErrResult
}
// DeleteResult represents the result of a Delete operation.
type DeleteResult struct {
gophercloud.ErrResult
}
// DBPage represents a single page of a paginated DB collection.
type DBPage struct {
pagination.LinkedPageBase
}
// IsEmpty checks to see whether the collection is empty.
func (page DBPage) IsEmpty() (bool, error) {
dbs, err := ExtractDBs(page)
if err != nil {
return true, err
}
return len(dbs) == 0, nil
}
// NextPageURL will retrieve the next page URL.
func (page DBPage) NextPageURL() (string, error) {
type resp struct {
Links []gophercloud.Link `mapstructure:"databases_links"`
}
var r resp
err := mapstructure.Decode(page.Body, &r)
if err != nil {
return "", err
}
return gophercloud.ExtractNextURL(r.Links)
}
// ExtractDBs will convert a generic pagination struct into a more
// relevant slice of DB structs.
func ExtractDBs(page pagination.Page) ([]Database, error) {
casted := page.(DBPage).Body
var response struct {
Databases []Database `mapstructure:"databases"`
}
err := mapstructure.Decode(casted, &response)
return response.Databases, err
}
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