Leon Mika
982d3a9ca7
Added a new popup to modify the columns of the table. With this new popup, the user can: - Show and hide columns - Move columns around - Add new columns which are derived from the value of an expression - Delete columns Also got the overlay mechanisms working.
70 lines
1.4 KiB
Go
70 lines
1.4 KiB
Go
package columns
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import (
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"github.com/aws/aws-sdk-go-v2/service/dynamodb/types"
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"github.com/lmika/audax/internal/dynamo-browse/models"
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"github.com/lmika/audax/internal/dynamo-browse/models/queryexpr"
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)
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type Columns struct {
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TableInfo *models.TableInfo
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Columns []Column
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}
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func NewColumnsFromResultSet(rs *models.ResultSet) *Columns {
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rsCols := rs.Columns()
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cols := make([]Column, len(rsCols))
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for i, c := range rsCols {
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cols[i] = Column{
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Name: c,
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Evaluator: SimpleFieldValueEvaluator(c),
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}
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}
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return &Columns{
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TableInfo: rs.TableInfo,
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Columns: cols,
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}
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}
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func (cols *Columns) VisibleColumns() []Column {
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if cols == nil {
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return []Column{}
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}
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visibleCols := make([]Column, 0)
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for _, col := range cols.Columns {
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if col.Hidden {
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continue
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}
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visibleCols = append(visibleCols, col)
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}
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return visibleCols
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}
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type Column struct {
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Name string
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Evaluator FieldValueEvaluator
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Hidden bool
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}
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type FieldValueEvaluator interface {
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EvaluateForItem(item models.Item) types.AttributeValue
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}
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type SimpleFieldValueEvaluator string
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func (sfve SimpleFieldValueEvaluator) EvaluateForItem(item models.Item) types.AttributeValue {
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return item[string(sfve)]
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}
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type ExprFieldValueEvaluator struct {
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Expr *queryexpr.QueryExpr
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}
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func (sfve ExprFieldValueEvaluator) EvaluateForItem(item models.Item) types.AttributeValue {
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val, _ := sfve.Expr.EvalItem(item)
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return val
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}
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