feat: add medias

backend/pkg/db/db.go

@@ -19,7 +19,7 @@ func FromContext(ctx context.Context, db *sql.DB) qrm.DB {
 
 func TruncateAllTables(ctx context.Context, db *sql.DB, tableName ...string) error {
 	for _, name := range tableName {
-		sql := fmt.Sprintf("TRUNCATE TABLE %s CASCADE", name)
+		sql := fmt.Sprintf("TRUNCATE TABLE %s RESTART IDENTITY", name)
 		if _, err := db.ExecContext(ctx, sql); err != nil {
 			return err
 		}

backend/pkg/db/pagination.go

@@ -0,0 +1,7 @@
+package db
+
+type Pagination struct {
+	Offset   string `json:"offset"`
+	OffsetID int64  `json:"-"`
+	Action   int    `json:"action"` // action: 0 :加载更多 1:刷新
+}

backend/pkg/pg/media.gen.go

@@ -0,0 +1,179 @@
+// Code generated by go-enum DO NOT EDIT.
+// Version: -
+// Revision: -
+// Build Date: -
+// Built By: -
+
+package pg
+
+import (
+	"database/sql/driver"
+	"errors"
+	"fmt"
+	"strings"
+)
+
+const (
+	// MediaTypeVideo is a MediaType of type Video.
+	MediaTypeVideo MediaType = "video"
+	// MediaTypeAudio is a MediaType of type Audio.
+	MediaTypeAudio MediaType = "audio"
+	// MediaTypePdf is a MediaType of type Pdf.
+	MediaTypePdf MediaType = "pdf"
+)
+
+var ErrInvalidMediaType = fmt.Errorf("not a valid MediaType, try [%s]", strings.Join(_MediaTypeNames, ", "))
+
+var _MediaTypeNames = []string{
+	string(MediaTypeVideo),
+	string(MediaTypeAudio),
+	string(MediaTypePdf),
+}
+
+// MediaTypeNames returns a list of possible string values of MediaType.
+func MediaTypeNames() []string {
+	tmp := make([]string, len(_MediaTypeNames))
+	copy(tmp, _MediaTypeNames)
+	return tmp
+}
+
+// MediaTypeValues returns a list of the values for MediaType
+func MediaTypeValues() []MediaType {
+	return []MediaType{
+		MediaTypeVideo,
+		MediaTypeAudio,
+		MediaTypePdf,
+	}
+}
+
+// String implements the Stringer interface.
+func (x MediaType) String() string {
+	return string(x)
+}
+
+// IsValid provides a quick way to determine if the typed value is
+// part of the allowed enumerated values
+func (x MediaType) IsValid() bool {
+	_, err := ParseMediaType(string(x))
+	return err == nil
+}
+
+var _MediaTypeValue = map[string]MediaType{
+	"video": MediaTypeVideo,
+	"audio": MediaTypeAudio,
+	"pdf":   MediaTypePdf,
+}
+
+// ParseMediaType attempts to convert a string to a MediaType.
+func ParseMediaType(name string) (MediaType, error) {
+	if x, ok := _MediaTypeValue[name]; ok {
+		return x, nil
+	}
+	return MediaType(""), fmt.Errorf("%s is %w", name, ErrInvalidMediaType)
+}
+
+var errMediaTypeNilPtr = errors.New("value pointer is nil") // one per type for package clashes
+
+// Scan implements the Scanner interface.
+func (x *MediaType) Scan(value interface{}) (err error) {
+	if value == nil {
+		*x = MediaType("")
+		return
+	}
+
+	// A wider range of scannable types.
+	// driver.Value values at the top of the list for expediency
+	switch v := value.(type) {
+	case string:
+		*x, err = ParseMediaType(v)
+	case []byte:
+		*x, err = ParseMediaType(string(v))
+	case MediaType:
+		*x = v
+	case *MediaType:
+		if v == nil {
+			return errMediaTypeNilPtr
+		}
+		*x = *v
+	case *string:
+		if v == nil {
+			return errMediaTypeNilPtr
+		}
+		*x, err = ParseMediaType(*v)
+	default:
+		return errors.New("invalid type for MediaType")
+	}
+
+	return
+}
+
+// Value implements the driver Valuer interface.
+func (x MediaType) Value() (driver.Value, error) {
+	return x.String(), nil
+}
+
+// Set implements the Golang flag.Value interface func.
+func (x *MediaType) Set(val string) error {
+	v, err := ParseMediaType(val)
+	*x = v
+	return err
+}
+
+// Get implements the Golang flag.Getter interface func.
+func (x *MediaType) Get() interface{} {
+	return *x
+}
+
+// Type implements the github.com/spf13/pFlag Value interface.
+func (x *MediaType) Type() string {
+	return "MediaType"
+}
+
+type NullMediaType struct {
+	MediaType MediaType
+	Valid     bool
+}
+
+func NewNullMediaType(val interface{}) (x NullMediaType) {
+	err := x.Scan(val) // yes, we ignore this error, it will just be an invalid value.
+	_ = err            // make any errcheck linters happy
+	return
+}
+
+// Scan implements the Scanner interface.
+func (x *NullMediaType) Scan(value interface{}) (err error) {
+	if value == nil {
+		x.MediaType, x.Valid = MediaType(""), false
+		return
+	}
+
+	err = x.MediaType.Scan(value)
+	x.Valid = (err == nil)
+	return
+}
+
+// Value implements the driver Valuer interface.
+func (x NullMediaType) Value() (driver.Value, error) {
+	if !x.Valid {
+		return nil, nil
+	}
+	// driver.Value accepts int64 for int values.
+	return string(x.MediaType), nil
+}
+
+type NullMediaTypeStr struct {
+	NullMediaType
+}
+
+func NewNullMediaTypeStr(val interface{}) (x NullMediaTypeStr) {
+	x.Scan(val) // yes, we ignore this error, it will just be an invalid value.
+	return
+}
+
+// Value implements the driver Valuer interface.
+func (x NullMediaTypeStr) Value() (driver.Value, error) {
+	if !x.Valid {
+		return nil, nil
+	}
+	return x.MediaType.String(), nil
+}

backend/pkg/pg/media.go

@@ -0,0 +1,9 @@
+package pg
+
+// swagger:enum MediaType
+// ENUM(
+// Video  = "video",
+// Audio = "audio",
+// Pdf = "pdf",
+// )
+type MediaType string