forked from corestoreio/pkg
/
attribute_backend.go
91 lines (80 loc) · 3.2 KB
/
attribute_backend.go
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// Copyright 2015, Cyrill @ Schumacher.fm and the CoreStore contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package eav
type (
// AttributeBackendModeller defines the attribute backend model @todo
// @see magento2/site/app/code/Magento/Eav/Model/Entity/Attribute/Backend/BackendInterface.php
AttributeBackendModeller interface {
// GetTable @todo
GetTable() string
IsStatic() bool
GetType() string
// GetEntityIDField @todo
GetEntityIDField() string
//SetValueId(valueId int) @todo
//GetValueId()@todo
//AfterLoad($object); object must be an interface @todo
//BeforeSave($object);
//AfterSave($object);
//BeforeDelete($object);
//AfterDelete($object);
// Validate @todo
Validate( /*data object*/ ) bool
//GetEntityValueId(entity *CSEntityType) hmmmm
//SetEntityValueId(entity *CSEntityType, valueId int) hmmmm
// IsScalar By default attribute value is considered scalar that can be stored in a generic way
IsScalar() bool
// Config to configure the current instance
Config(...AttributeBackendConfig) AttributeBackendModeller
}
// AttributeBackend implements abstract functions @todo
// @see magento2/site/app/code/Magento/Eav/Model/Entity/Attribute/Backend/AbstractBackend.php
AttributeBackend struct {
// a is the reference to the already created attribute during init() call in a package.
// Do not modify the attribute here
a *Attribute
// idx references to the generated constant and therefore references to itself. mainly used in
// backend|source|frontend|etc_model
idx AttributeIndex
}
AttributeBackendConfig func(*AttributeBackend)
)
var _ AttributeBackendModeller = (*AttributeBackend)(nil)
// NewAttributeBackend creates a pointer to a new attribute source
func NewAttributeBackend(cfgs ...AttributeBackendConfig) *AttributeBackend {
as := &AttributeBackend{
a: nil,
}
as.Config(cfgs...)
return as
}
// AttributeBackendIdx only used in generated code to set the current index in the attribute slice
func AttributeBackendIdx(i AttributeIndex) AttributeBackendConfig {
return func(as *AttributeBackend) {
as.idx = i
}
}
// Config runs the configuration functions
func (ab *AttributeBackend) Config(configs ...AttributeBackendConfig) AttributeBackendModeller {
for _, cfg := range configs {
cfg(ab)
}
return ab
}
func (ab *AttributeBackend) IsStatic() bool { return ab.a.IsStatic() }
func (ab *AttributeBackend) GetTable() string { return "" }
func (ab *AttributeBackend) GetType() string { return ab.a.BackendType() }
func (ab *AttributeBackend) GetEntityIDField() string { return "" }
func (ab *AttributeBackend) Validate() bool { return true }
func (ab *AttributeBackend) IsScalar() bool { return true }