ArrayModel.php

<?php

App::uses('AppModel', 'Model');

class ArrayModel extends AppModel {

	public $useDbConfig = 'array';
	public $useTable = false;

	public $records = [];

	public function __construct($id = false, $table = null, $ds = null) {
		// disable overriding datasource
		if (is_array($id) && isset($id['ds'])) {
			unset($id['ds']);
		}

		$this->_processConstructRecords();

		if (!$this->displayField) {
			$this->displayField = $this->hasField(array('title', 'name', $this->primaryKey));
		}

		parent::__construct($id, $table);
	}

	protected function _processConstructRecords() {
		if (method_exists($this, '_constructRecords')) {
			$result = $this->_constructRecords();
			if (!empty($result) && is_array($result)) {
				$this->records = $result;
			}
		}
	}

	protected function _simpleConstructRecords($list, $split = "/\n/") {
		$lines = preg_split($split, $list, -1, PREG_SPLIT_NO_EMPTY);
		$countLines = count($lines);
		for ($i = 0; $i < $countLines; $i++) {
			$id = $i + 1;
			$name = $lines[$i];
			$this->records[] = compact('id', 'name');
		}
	}

	protected function _constructRecordsFromAssocArray(array $array) {
		$current = current($array);
		$count = count($current);
		for ($i = 0; $i < $count; $i++) {
			$id = $i + 1;
			$record = compact('id');
			foreach ($array as $name => $values) {
				$record[$name] = $values[$i];
			}
			$this->records[] = $record;
		}
	}

	public function schema($field = false) {
		if (empty($this->_schema) || $field = true) {
			$keys = [];
			foreach ($this->records as $record) {
				$keys = array_merge($keys, array_keys($record));
			}

			$this->_schema = [];
			$default = [
				'type' => 'string',
				'length' => null,
				'null' => false,
				'default' => null,
			];
			foreach ($keys as $key) {
				$this->_schema[$key] = $default;
				$values = Hash::extract($this->records, "{n}.$key");

				if (Hash::numeric($values)) {
					$this->_schema[$key]['type'] = 'int';
				}
			}

		}
		if (!is_string($field)) {
			return $this->_schema;
		}
		if (isset($this->_schema[$field])) {
			return $this->_schema[$field];
		}
		return null;
	}

}