49 lines
1.4 KiB
Go
Executable File
49 lines
1.4 KiB
Go
Executable File
package model
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import (
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"context"
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"fmt"
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"github.com/zeromicro/go-zero/core/stores/cache"
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"github.com/zeromicro/go-zero/core/stores/sqlc"
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"github.com/zeromicro/go-zero/core/stores/sqlx"
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)
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var _ MachineNodeModel = (*customMachineNodeModel)(nil)
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type (
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// MachineNodeModel is an interface to be customized, add more methods here,
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// and implement the added methods in customMachineNodeModel.
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MachineNodeModel interface {
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machineNodeModel
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FindOneByHostName(ctx context.Context, hostName string) (*MachineNode, error)
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}
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customMachineNodeModel struct {
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*defaultMachineNodeModel
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}
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)
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// NewMachineNodeModel returns a model for the database table.
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func NewMachineNodeModel(conn sqlx.SqlConn, c cache.CacheConf, opts ...cache.Option) MachineNodeModel {
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return &customMachineNodeModel{
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defaultMachineNodeModel: newMachineNodeModel(conn, c, opts...),
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}
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}
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func (m *defaultMachineNodeModel) FindOneByHostName(ctx context.Context, hostName string) (*MachineNode, error) {
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machineNodeIdKey := fmt.Sprintf("%s%v", cacheMachineNodeIdPrefix, hostName)
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var resp MachineNode
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err := m.QueryRowCtx(ctx, &resp, machineNodeIdKey, func(ctx context.Context, conn sqlx.SqlConn, v any) error {
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query := fmt.Sprintf("select %s from %s where `host_name` = ? limit 1", machineNodeRows, m.table)
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return conn.QueryRowCtx(ctx, v, query, hostName)
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})
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switch err {
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case nil:
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return &resp, nil
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case sqlc.ErrNotFound:
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return nil, ErrNotFound
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default:
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return nil, err
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}
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}
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