56 lines
1.9 KiB
Go
56 lines
1.9 KiB
Go
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package tdb
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import (
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"errors"
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"fmt"
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)
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type elementsNotNullConstraint struct {
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table *table
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field dbField
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}
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func newElementsNotNullConstraint(table *table, field dbField) (constraintish, error) {
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if table == nil {
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return nil, errors.New("[constraint.elementsnotnull] unable to create not-null without table")
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}
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if !field.IsSliceish() {
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return nil, errors.New("[constraint.elementsnotnull] field is not an array or slice")
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}
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return &elementsNotNullConstraint{
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table: table,
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field: field,
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}, nil
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}
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// func (c *notNullConstraint) validateRaw(tx *Tx, foreignKeys [][]byte) error {
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// for _, foreignKey := range foreignKeys {
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// for _, nullishValue := range nullishValues {
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// if bytes.Equal(nullishValue, foreignKey) {
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// c.table.debugLogf("[constraint.elementsnotnull.validateRaw] violation: '%s'.'%s' is null-ish value '%s'", c.table.name, c.field.Name, nullishValue)
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// return fmt.Errorf("[constraint.elementsnotnull.validateRaw] violation: '%s'.'%s' is null-ish value '%s'", c.table.name, c.field.Name, nullishValue)
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// }
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// }
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// }
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// return nil
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// }
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func (c *elementsNotNullConstraint) validate(tx *Tx, pv dbPtrValue) error {
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c.table.debugLogf("[constraint.elementsnotnull.validate] validating not-null for '%s'.'%s'", c.table.name, c.field.Name)
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val := pv.dangerous_Field(c.field)
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if val.IsZero() {
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c.table.debugLogf("[constraint.elementsnotnull.validate] '%s'.'%s' is zero value, not validating elements", c.table.name, c.field.Name)
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return nil
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}
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lenVal := val.Len()
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for i := 0; i < lenVal; i++ {
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if val.Index(i).IsZero() {
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c.table.debugLogf("[constraint.elementsnotnull.validate] violation: '%s'.'%s' contains zero value at index %d", c.table.name, c.field.Name, i)
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return fmt.Errorf("[constraint.elementsnotnull.validate] violation: '%s'.'%s' contains zero value at index %d", c.table.name, c.field.Name, i)
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}
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}
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return nil
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}
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