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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package schema
import (
errors_ "errors"
"fmt"
"strings"
"github.com/weaviate/weaviate/entities/models"
)
type PropertyInterface interface {
GetName() string
GetNestedProperties() []*models.NestedProperty
}
// GetClassByName returns the class by its name
func GetClassByName(s *models.Schema, className string) (*models.Class, error) {
if s == nil {
return nil, fmt.Errorf(ErrorNoSuchClass, className)
}
// For each class
for _, class := range s.Classes {
// Check if the name of the class is the given name, that's the class we need
if class.Class == className {
return class, nil
}
}
return nil, fmt.Errorf(ErrorNoSuchClass, className)
}
// GetPropertyByName returns the class by its name
func GetPropertyByName(c *models.Class, propName string) (*models.Property, error) {
// For each class-property
for _, prop := range c.Properties {
// Check if the name of the property is the given name, that's the property we need
if prop.Name == strings.Split(propName, ".")[0] {
return prop, nil
}
}
return nil, fmt.Errorf(ErrorNoSuchProperty, propName, c.Class)
}
// GetPropertyDataType checks whether the given string is a valid data type
func GetPropertyDataType(class *models.Class, propertyName string) (*DataType, error) {
// Get the class-property
prop, err := GetPropertyByName(class, propertyName)
if err != nil {
return nil, err
}
// Init the return value
var returnDataType DataType
// For each data type
for _, dataType := range prop.DataType {
if len(dataType) == 0 {
return nil, fmt.Errorf("invalid-dataType")
}
// Get the first letter to see if it is a capital
firstLetter := string(dataType[0])
if strings.ToUpper(firstLetter) == firstLetter {
returnDataType = DataTypeCRef
} else {
// Get the value-data type (non-cref), return error if there is one, otherwise assign it to return data type
valueDataType, err := GetValueDataTypeFromString(dataType)
if err != nil {
return nil, err
}
returnDataType = *valueDataType
}
}
return &returnDataType, nil
}
func GetNestedPropertyByName[P PropertyInterface](p P, propName string) (*models.NestedProperty, error) {
// For each nested-property
for _, prop := range p.GetNestedProperties() {
// Check if the name of the property is the given name, that's the property we need
if prop.Name == strings.Split(propName, ".")[0] {
return prop, nil
}
}
return nil, fmt.Errorf(ErrorNoSuchProperty, propName, p.GetName())
}
func GetNestedPropertyDataType[P PropertyInterface](p P, propertyName string) (*DataType, error) {
// Get the class-property
prop, err := GetNestedPropertyByName(p, propertyName)
if err != nil {
return nil, err
}
// Init the return value
var returnDataType DataType
// For each data type
for _, dataType := range prop.DataType {
if len(dataType) == 0 {
return nil, fmt.Errorf("invalid-dataType")
}
// Get the first letter to see if it is a capital
firstLetter := string(dataType[0])
if strings.ToUpper(firstLetter) == firstLetter {
returnDataType = DataTypeCRef
} else {
// Get the value-data type (non-cref), return error if there is one, otherwise assign it to return data type
valueDataType, err := GetValueDataTypeFromString(dataType)
if err != nil {
return nil, err
}
returnDataType = *valueDataType
}
}
return &returnDataType, nil
}
// GetValueDataTypeFromString checks whether the given string is a valid data type
func GetValueDataTypeFromString(dt string) (*DataType, error) {
var returnDataType DataType
if IsValidValueDataType(dt) {
returnDataType = DataType(dt)
} else {
return nil, errors_.New(ErrorNoSuchDatatype)
}
return &returnDataType, nil
}
// IsValidValueDataType checks whether the given string is a valid data type
func IsValidValueDataType(dt string) bool {
switch dt {
case
string(DataTypeString),
string(DataTypeText),
string(DataTypeInt),
string(DataTypeNumber),
string(DataTypeBoolean),
string(DataTypeDate),
string(DataTypeGeoCoordinates),
string(DataTypePhoneNumber),
string(DataTypeBlob),
string(DataTypeUUID),
string(DataTypeUUIDArray),
string(DataTypeStringArray),
string(DataTypeTextArray),
string(DataTypeIntArray),
string(DataTypeNumberArray),
string(DataTypeBooleanArray),
string(DataTypeDateArray),
string(DataTypeObject),
string(DataTypeObjectArray):
return true
}
return false
}
func IsRefDataType(dt []string) bool {
firstLetter := string(dt[0][0])
return strings.ToUpper(firstLetter) == firstLetter
}
func IsBlobDataType(dt []string) bool {
for i := range dt {
if dt[i] == string(DataTypeBlob) {
return true
}
}
return false
}
func IsArrayDataType(dt []string) bool {
for i := range dt {
switch DataType(dt[i]) {
case DataTypeStringArray, DataTypeTextArray, DataTypeIntArray,
DataTypeNumberArray, DataTypeBooleanArray, DataTypeDateArray,
DataTypeUUIDArray:
return true
default:
// move to the next loop
}
}
return false
}
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