ApiPlatform\SchemaGenerator\AnnotationGenerator\DoctrineOrmAnnotationGenerator::generateFieldAnnotations PHP Method

    public function generateFieldAnnotations($className, $fieldName)
    {
        $this->classes[$className];
        $field = $this->classes[$className]['fields'][$fieldName];
        $field['relationTableName'] = null;
        if (!$field['isId'] && isset($this->config['types'][$className]['properties'][$fieldName])) {
            $field['relationTableName'] = $this->config['types'][$className]['properties'][$fieldName]['relationTableName'];
        }
        $annotations = [];
        if ($field['isEnum']) {
            if ($field['isArray']) {
                $type = 'simple_array';
            } else {
                $type = 'string';
            }
        } else {
            switch ($field['range']) {
                case 'Boolean':
                    $type = 'boolean';
                    break;
                case 'Date':
                    $type = 'date';
                    break;
                case 'DateTime':
                    $type = 'datetime';
                    break;
                case 'Time':
                    $type = 'time';
                    break;
                case 'Number':
                    // No break
                // No break
                case 'Float':
                    $type = 'float';
                    break;
                case 'Integer':
                    $type = 'integer';
                    break;
                case 'Text':
                    // No break
                // No break
                case 'URL':
                    $type = 'string';
                    break;
            }
        }
        if (isset($type)) {
            $annotation = '@ORM\\Column';
            $isColumnHasProperties = false;
            if ($field['ormColumn']) {
                $annotation .= '(' . $field['ormColumn'] . ')';
            } else {
                if ($type !== 'string' || $field['isNullable'] || $field['isUnique']) {
                    $isColumnHasProperties = true;
                }
                if ($field['isArray']) {
                    $type = 'simple_array';
                }
                if ($isColumnHasProperties) {
                    $annotation .= '(';
                }
                if ($type !== 'string') {
                    $annotation .= sprintf('type="%s"', $type);
                }
                if ($type !== 'string' && $field['isNullable']) {
                    $annotation .= ', ';
                }
                if ($field['isNullable']) {
                    $annotation .= 'nullable=true';
                }
                if ($field['isUnique'] && $field['isNullable']) {
                    $annotation .= ', ';
                }
                if ($field['isUnique']) {
                    $annotation .= 'unique=true';
                }
                if ($isColumnHasProperties) {
                    $annotation .= ')';
                }
            }
            $annotations[] = $annotation;
        } elseif ($field['isEmbedded']) {
            $columnPrefix = $field['columnPrefix'] ? ', columnPrefix=true' : ', columnPrefix=false';
            $annotations[] = sprintf('@ORM\\Embedded(class="%s"%s)', $this->getRelationName($field['range']), $columnPrefix);
        } else {
            switch ($field['cardinality']) {
                case CardinalitiesExtractor::CARDINALITY_0_1:
                    $annotations[] = sprintf('@ORM\\OneToOne(targetEntity="%s")', $this->getRelationName($field['range']));
                    break;
                case CardinalitiesExtractor::CARDINALITY_1_1:
                    $annotations[] = sprintf('@ORM\\OneToOne(targetEntity="%s")', $this->getRelationName($field['range']));
                    $annotations[] = '@ORM\\JoinColumn(nullable=false)';
                    break;
                case CardinalitiesExtractor::CARDINALITY_UNKNOWN:
                    // No break
                // No break
                case CardinalitiesExtractor::CARDINALITY_N_0:
                    $annotations[] = sprintf('@ORM\\ManyToOne(targetEntity="%s")', $this->getRelationName($field['range']));
                    break;
                case CardinalitiesExtractor::CARDINALITY_N_1:
                    $annotations[] = sprintf('@ORM\\ManyToOne(targetEntity="%s")', $this->getRelationName($field['range']));
                    $annotations[] = '@ORM\\JoinColumn(nullable=false)';
                    break;
                case CardinalitiesExtractor::CARDINALITY_0_N:
                    $annotations[] = sprintf('@ORM\\ManyToMany(targetEntity="%s")', $this->getRelationName($field['range']));
                    $name = $field['relationTableName'] ? sprintf('name="%s", ', $field['relationTableName']) : '';
                    $annotations[] = '@ORM\\JoinTable(' . $name . 'inverseJoinColumns={@ORM\\JoinColumn(unique=true)})';
                    break;
                case CardinalitiesExtractor::CARDINALITY_1_N:
                    $annotations[] = sprintf('@ORM\\ManyToMany(targetEntity="%s")', $this->getRelationName($field['range']));
                    $name = $field['relationTableName'] ? sprintf('name="%s", ', $field['relationTableName']) : '';
                    $annotations[] = '@ORM\\JoinTable(' . $name . 'inverseJoinColumns={@ORM\\JoinColumn(nullable=false, unique=true)})';
                    break;
                case CardinalitiesExtractor::CARDINALITY_N_N:
                    $annotations[] = sprintf('@ORM\\ManyToMany(targetEntity="%s")', $this->getRelationName($field['range']));
                    if ($field['relationTableName']) {
                        $annotations[] = sprintf('@ORM\\JoinTable(name="%s")', $field['relationTableName']);
                    }
                    break;
            }
        }
        if ($field['isId']) {
            $annotations[] = '@ORM\\Id';
            $annotations[] = '@ORM\\GeneratedValue(strategy="AUTO")';
        }
        return $annotations;
    }