goext/sq/filter.go
Mike Schwörer 4a33986b6a
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v0.0.407 sq.Iterate
2024-03-11 16:40:41 +01:00

57 lines
1.5 KiB
Go

package sq
import ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
type FilterSort struct {
Field string
Direction ct.SortDirection
}
type PaginateFilter interface {
SQL(params PP) (filterClause string, joinClause string, joinTables []string)
Sort() []FilterSort
}
type genericPaginateFilter struct {
sql func(params PP) (filterClause string, joinClause string, joinTables []string)
sort func() []FilterSort
}
func (g genericPaginateFilter) SQL(params PP) (filterClause string, joinClause string, joinTables []string) {
return g.sql(params)
}
func (g genericPaginateFilter) Sort() []FilterSort {
return g.sort()
}
func NewPaginateFilter(sql func(params PP) (filterClause string, joinClause string, joinTables []string), sort []FilterSort) PaginateFilter {
return genericPaginateFilter{
sql: func(params PP) (filterClause string, joinClause string, joinTables []string) {
return sql(params)
},
sort: func() []FilterSort {
return sort
},
}
}
func NewSimplePaginateFilter(filterClause string, filterParams PP, sort []FilterSort) PaginateFilter {
return genericPaginateFilter{
sql: func(params PP) (string, string, []string) {
params.AddAll(filterParams)
return filterClause, "", nil
},
sort: func() []FilterSort {
return sort
},
}
}
func NewEmptyPaginateFilter() PaginateFilter {
return genericPaginateFilter{
sql: func(params PP) (string, string, []string) { return "1=1", "", nil },
sort: func() []FilterSort { return make([]FilterSort, 0) },
}
}