teguh nugroho
622045f3fc
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64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package datatable
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import (
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"cargo-erp-backend/internal/handlers/dto"
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"fmt"
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"gorm.io/gorm"
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)
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type DatatableInterface interface {
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Render(coldef []dto.DataTableColDef) dto.DataTableResponse
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}
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type Datatable struct {
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DB *gorm.DB
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Req dto.DataTableRequest
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}
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func NewDatatable(db *gorm.DB, table_request dto.DataTableRequest) DatatableInterface {
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return &Datatable{
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DB: db,
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Req: table_request,
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}
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}
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func (d *Datatable) SetTable(db *gorm.DB) {
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d.DB = db
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}
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func (d *Datatable) Render(coldef []dto.DataTableColDef) dto.DataTableResponse {
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var totaldata int64 = 0
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d.DB.Count(&totaldata)
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//select
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selectAlias := make([]string, 0)
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for _, v := range coldef {
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selectAlias = append(selectAlias, fmt.Sprintf("%v AS %v", v.Field, v.Alias))
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}
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d.DB.Select(selectAlias)
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//global filter
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if len(d.Req.Search.Value) > 0 {
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for _, vcol := range d.Req.Columns {
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if vcol.Searchable {
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for _, v := range coldef {
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d.DB.Or(fmt.Sprintf("%v::TEXT ILIKE '%%%v%%'", v.Field, d.Req.Search.Value))
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}
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}
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}
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}
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var totalFiltered int64 = 0
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d.DB.Count(&totalFiltered)
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start := d.Req.Start
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if start == 0 {
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start = 1
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}
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limit := d.Req.Length
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d.DB.Limit(limit).Offset(start*limit - limit)
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output := make([]map[string]interface{}, 0)
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d.DB.Scan(&output)
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result := dto.DataTableResponse{
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Draw: 1,
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RecordsTotal: totaldata,
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RecordsFiltered: totalFiltered,
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Data: output,
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}
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return result
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}
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