refactor: minor code refactorings

models/shared.go

@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"gorm.io/gorm"
 	"strconv"
 	"strings"
 	"time"
@@ -18,8 +17,6 @@ const (
 	PersistentIntervalKey = "wakapi_summary_interval"
 )
 
-type MigrationFunc func(db *gorm.DB) error
-
 type KeyStringValue struct {
 	Key   string `gorm:"primary_key"`
 	Value string `gorm:"type:text"`
@@ -35,11 +32,6 @@ type KeyedInterval struct {
 	Key *IntervalKey
 }
 
-type PageParams struct {
-	Page     int `json:"page"`
-	PageSize int `json:"page_size"`
-}
-
 // CustomTime is a wrapper type around time.Time, mainly used for the purpose of transparently unmarshalling Python timestamps in the format <sec>.<nsec> (e.g. 1619335137.3324468)
 type CustomTime time.Time
 
@@ -105,17 +97,3 @@ func (j CustomTime) T() time.Time {
 func (j CustomTime) Valid() bool {
 	return j.T().Unix() >= 0
 }
-
-func (p *PageParams) Limit() int {
-	if p.PageSize < 0 {
-		return 0
-	}
-	return p.PageSize
-}
-
-func (p *PageParams) Offset() int {
-	if p.PageSize <= 0 {
-		return 0
-	}
-	return (p.Page - 1) * p.PageSize
-}