实现基本的图表管理

internal/db/models/metric_chart_dao.go

@@ -0,0 +1,143 @@
+package models
+
+import (
+	"encoding/json"
+	"github.com/TeaOSLab/EdgeAPI/internal/errors"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/maps"
+)
+
+const (
+	MetricChartStateEnabled  = 1 // 已启用
+	MetricChartStateDisabled = 0 // 已禁用
+)
+
+type MetricChartDAO dbs.DAO
+
+func NewMetricChartDAO() *MetricChartDAO {
+	return dbs.NewDAO(&MetricChartDAO{
+		DAOObject: dbs.DAOObject{
+			DB:     Tea.Env,
+			Table:  "edgeMetricCharts",
+			Model:  new(MetricChart),
+			PkName: "id",
+		},
+	}).(*MetricChartDAO)
+}
+
+var SharedMetricChartDAO *MetricChartDAO
+
+func init() {
+	dbs.OnReady(func() {
+		SharedMetricChartDAO = NewMetricChartDAO()
+	})
+}
+
+// EnableMetricChart 启用条目
+func (this *MetricChartDAO) EnableMetricChart(tx *dbs.Tx, chartId int64) error {
+	_, err := this.Query(tx).
+		Pk(chartId).
+		Set("state", MetricChartStateEnabled).
+		Update()
+	return err
+}
+
+// DisableMetricChart 禁用条目
+func (this *MetricChartDAO) DisableMetricChart(tx *dbs.Tx, chartId int64) error {
+	_, err := this.Query(tx).
+		Pk(chartId).
+		Set("state", MetricChartStateDisabled).
+		Update()
+	return err
+}
+
+// FindEnabledMetricChart 查找启用中的条目
+func (this *MetricChartDAO) FindEnabledMetricChart(tx *dbs.Tx, chartId int64) (*MetricChart, error) {
+	result, err := this.Query(tx).
+		Pk(chartId).
+		Attr("state", MetricChartStateEnabled).
+		Find()
+	if result == nil {
+		return nil, err
+	}
+	return result.(*MetricChart), err
+}
+
+// FindMetricChartName 根据主键查找名称
+func (this *MetricChartDAO) FindMetricChartName(tx *dbs.Tx, chartId int64) (string, error) {
+	return this.Query(tx).
+		Pk(chartId).
+		Result("name").
+		FindStringCol("")
+}
+
+// CreateChart 创建图表
+func (this *MetricChartDAO) CreateChart(tx *dbs.Tx, itemId int64, name string, chartType string, widthDiv int32, maxItems int32, params maps.Map) (int64, error) {
+	op := NewMetricChartOperator()
+	op.ItemId = itemId
+	op.Name = name
+	op.Type = chartType
+	op.WidthDiv = widthDiv
+	op.MaxItems = maxItems
+
+	if params == nil {
+		params = maps.Map{}
+	}
+	paramsJSON, err := json.Marshal(params)
+	if err != nil {
+		return 0, err
+	}
+	op.Params = paramsJSON
+	op.IsOn = true
+	op.State = MetricChartStateEnabled
+	return this.SaveInt64(tx, op)
+}
+
+// UpdateChart 修改图表
+func (this *MetricChartDAO) UpdateChart(tx *dbs.Tx, chartId int64, name string, chartType string, widthDiv int32, maxItems int32, params maps.Map, isOn bool) error {
+	if chartId <= 0 {
+		return errors.New("invalid chartId")
+	}
+	op := NewMetricChartOperator()
+	op.Id = chartId
+	op.Name = name
+	op.Type = chartType
+	op.WidthDiv = widthDiv
+	op.MaxItems = maxItems
+
+	if params == nil {
+		params = maps.Map{}
+	}
+	paramsJSON, err := json.Marshal(params)
+	if err != nil {
+		return err
+	}
+	op.Params = paramsJSON
+
+	op.IsOn = isOn
+
+	return this.Save(tx, op)
+}
+
+// CountEnabledCharts 计算图表数量
+func (this *MetricChartDAO) CountEnabledCharts(tx *dbs.Tx, itemId int64) (int64, error) {
+	return this.Query(tx).
+		Attr("itemId", itemId).
+		State(MetricChartStateEnabled).
+		Count()
+}
+
+// ListEnabledCharts 列出单页图表
+func (this *MetricChartDAO) ListEnabledCharts(tx *dbs.Tx, itemId int64, offset int64, size int64) (result []*MetricChart, err error) {
+	_, err = this.Query(tx).
+		Attr("itemId", itemId).
+		State(MetricChartStateEnabled).
+		Offset(offset).
+		Limit(size).
+		DescPk().
+		Slice(&result).
+		FindAll()
+	return
+}