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197e44d04c
Centralizes all characters table SQL behind a CharacterRepository struct in repo_character.go. The 4 existing helpers (loadCharacterData, saveCharacterData, readCharacterInt, adjustCharacterInt) now delegate to the repository, keeping identical signatures so all ~70 callsites remain unchanged. Direct queries in handlers_session.go, sys_channel_server.go (DisconnectUser), and handlers_mail.go are also migrated. Pure refactor with zero behavior change — first step toward eliminating the ~130 scattered character queries identified in anti-patterns #9.
77 lines
2.7 KiB
Go
77 lines
2.7 KiB
Go
package channelserver
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import "github.com/jmoiron/sqlx"
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// CharacterRepository centralizes all database access for the characters table.
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type CharacterRepository struct {
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db *sqlx.DB
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}
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// NewCharacterRepository creates a new CharacterRepository.
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func NewCharacterRepository(db *sqlx.DB) *CharacterRepository {
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return &CharacterRepository{db: db}
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}
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// LoadColumn reads a single []byte column by character ID.
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func (r *CharacterRepository) LoadColumn(charID uint32, column string) ([]byte, error) {
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var data []byte
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err := r.db.QueryRow("SELECT "+column+" FROM characters WHERE id = $1", charID).Scan(&data)
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return data, err
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}
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// SaveColumn writes a single []byte column by character ID.
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func (r *CharacterRepository) SaveColumn(charID uint32, column string, data []byte) error {
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_, err := r.db.Exec("UPDATE characters SET "+column+"=$1 WHERE id=$2", data, charID)
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return err
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}
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// ReadInt reads a single integer column (0 for NULL) by character ID.
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func (r *CharacterRepository) ReadInt(charID uint32, column string) (int, error) {
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var value int
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err := r.db.QueryRow("SELECT COALESCE("+column+", 0) FROM characters WHERE id=$1", charID).Scan(&value)
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return value, err
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}
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// AdjustInt atomically adds delta to an integer column and returns the new value.
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func (r *CharacterRepository) AdjustInt(charID uint32, column string, delta int) (int, error) {
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var value int
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err := r.db.QueryRow(
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"UPDATE characters SET "+column+"=COALESCE("+column+", 0)+$1 WHERE id=$2 RETURNING "+column,
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delta, charID,
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).Scan(&value)
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return value, err
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}
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// GetName returns the character name by ID.
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func (r *CharacterRepository) GetName(charID uint32) (string, error) {
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var name string
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err := r.db.QueryRow("SELECT name FROM characters WHERE id=$1", charID).Scan(&name)
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return name, err
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}
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// GetUserID returns the owning user_id for a character.
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func (r *CharacterRepository) GetUserID(charID uint32) (uint32, error) {
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var userID uint32
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err := r.db.QueryRow("SELECT user_id FROM characters WHERE id=$1", charID).Scan(&userID)
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return userID, err
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}
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// UpdateLastLogin sets the last_login timestamp.
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func (r *CharacterRepository) UpdateLastLogin(charID uint32, timestamp int64) error {
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_, err := r.db.Exec("UPDATE characters SET last_login=$1 WHERE id=$2", timestamp, charID)
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return err
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}
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// UpdateTimePlayed sets the time_played value.
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func (r *CharacterRepository) UpdateTimePlayed(charID uint32, timePlayed int) error {
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_, err := r.db.Exec("UPDATE characters SET time_played=$1 WHERE id=$2", timePlayed, charID)
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return err
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}
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// GetCharIDsByUserID returns all character IDs belonging to a user.
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func (r *CharacterRepository) GetCharIDsByUserID(userID uint32) ([]uint32, error) {
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var ids []uint32
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err := r.db.Select(&ids, "SELECT id FROM characters WHERE user_id=$1", userID)
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return ids, err
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}
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