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Yii2 mongodb 扩展的where的条件加入大于 小于号

创建时间:2016-03-25 投稿人: 浏览次数:5168


1. mongodb的where中有比较丰富的 条件,如下:

 static $builders = [
            "NOT" => "buildNotCondition",
            "AND" => "buildAndCondition",
            "OR" => "buildOrCondition",
            "BETWEEN" => "buildBetweenCondition",
            "NOT BETWEEN" => "buildBetweenCondition",
            "IN" => "buildInCondition",
            "NOT IN" => "buildInCondition",
            "REGEX" => "buildRegexCondition",
            "LIKE" => "buildLikeCondition",
			
        ];

但是没有大于和小于等,因此我们需要加入大于,大于等于, 小于,小于等于

加入函数部分为:

在vendor/yiisoft/yii2-mongodb/collection.php

加入函数:

	public function buildGtCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?gt" => $value]];
    }
	
	
	public function buildGteCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?gte" => $value]];
    }
	
	
	public function buildLtCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?lt" => $value]];
    }
	
	public function buildLteCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?lte" => $value]];
    }
buildCondition函数里面加入下面的部分代码
 public function buildCondition($condition)
    {
        static $builders = [
            "NOT" => "buildNotCondition",
            "AND" => "buildAndCondition",
            "OR" => "buildOrCondition",
            "BETWEEN" => "buildBetweenCondition",
            "NOT BETWEEN" => "buildBetweenCondition",
            "IN" => "buildInCondition",
            "NOT IN" => "buildInCondition",
            "REGEX" => "buildRegexCondition",
            "LIKE" => "buildLikeCondition",
			">" 	=> "buildGtCondition",
			">="	=> "buildGteCondition",
			"<" 	=> "buildLtCondition",
			"<=" 	=> "buildLteCondition",
        ];


最后collection.php的代码如下:

<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yiimongodb;

use yiiaseInvalidParamException;
use yiiaseObject;
use Yii;

/**
 * Collection represents the Mongo collection information.
 *
 * A collection object is usually created by calling [[Database::getCollection()]] or [[Connection::getCollection()]].
 *
 * Collection provides the basic interface for the Mongo queries, mostly: insert, update, delete operations.
 * For example:
 *
 * ~~~
 * $collection = Yii::$app->mongodb->getCollection("customer");
 * $collection->insert(["name" => "John Smith", "status" => 1]);
 * ~~~
 *
 * To perform "find" queries, please use [[Query]] instead.
 *
 * Mongo uses JSON format to specify query conditions with quite specific syntax.
 * However Collection class provides the ability of "translating" common condition format used "yiidb*"
 * into Mongo condition.
 * For example:
 * ~~~
 * $condition = [
 *     [
 *         "OR",
 *         ["AND", ["first_name" => "John"], ["last_name" => "Smith"]],
 *         ["status" => [1, 2, 3]]
 *     ],
 * ];
 * print_r($collection->buildCondition($condition));
 * // outputs :
 * [
 *     "$or" => [
 *         [
 *             "first_name" => "John",
 *             "last_name" => "John",
 *         ],
 *         [
 *             "status" => ["$in" => [1, 2, 3]],
 *         ]
 *     ]
 * ]
 * ~~~
 *
 * Note: condition values for the key "_id" will be automatically cast to [[MongoId]] instance,
 * even if they are plain strings. However, if you have other columns, containing [[MongoId]], you
 * should take care of possible typecast on your own.
 *
 * @property string $fullName Full name of this collection, including database name. This property is
 * read-only.
 * @property array $lastError Last error information. This property is read-only.
 * @property string $name Name of this collection. This property is read-only.
 *
 * @author Paul Klimov <klimov.paul@gmail.com>
 * @since 2.0
 */
class Collection extends Object
{
    /**
     * @var MongoCollection Mongo collection instance.
     */
    public $mongoCollection;


    /**
     * @return string name of this collection.
     */
    public function getName()
    {
        return $this->mongoCollection->getName();
    }

    /**
     * @return string full name of this collection, including database name.
     */
    public function getFullName()
    {
        return $this->mongoCollection->__toString();
    }

    /**
     * @return array last error information.
     */
    public function getLastError()
    {
        return $this->mongoCollection->db->lastError();
    }

    /**
     * Composes log/profile token.
     * @param string $command command name
     * @param array $arguments command arguments.
     * @return string token.
     */
    protected function composeLogToken($command, $arguments = [])
    {
        $parts = [];
        foreach ($arguments as $argument) {
            $parts[] = is_scalar($argument) ? $argument : $this->encodeLogData($argument);
        }

        return $this->getFullName() . "." . $command . "(" . implode(", ", $parts) . ")";
    }

    /**
     * Encodes complex log data into JSON format string.
     * @param mixed $data raw data.
     * @return string encoded data string.
     */
    protected function encodeLogData($data)
    {
        return json_encode($this->processLogData($data));
    }

    /**
     * Pre-processes the log data before sending it to `json_encode()`.
     * @param mixed $data raw data.
     * @return mixed the processed data.
     */
    protected function processLogData($data)
    {
        if (is_object($data)) {
            if ($data instanceof MongoId ||
                $data instanceof MongoRegex ||
                $data instanceof MongoDate ||
                $data instanceof MongoInt32 ||
                $data instanceof MongoInt64 ||
                $data instanceof MongoTimestamp
            ) {
                $data = get_class($data) . "(" . $data->__toString() . ")";
            } elseif ($data instanceof MongoCode) {
                $data = "MongoCode( " . $data->__toString() . " )";
            } elseif ($data instanceof MongoBinData) {
                $data = "MongoBinData(...)";
            } elseif ($data instanceof MongoDBRef) {
                $data = "MongoDBRef(...)";
            } elseif ($data instanceof MongoMinKey || $data instanceof MongoMaxKey) {
                $data = get_class($data);
            } else {
                $result = [];
                foreach ($data as $name => $value) {
                    $result[$name] = $value;
                }
                $data = $result;
            }

            if ($data === []) {
                return new stdClass();
            }
        }

        if (is_array($data)) {
            foreach ($data as $key => $value) {
                if (is_array($value) || is_object($value)) {
                    $data[$key] = $this->processLogData($value);
                }
            }
        }

        return $data;
    }

    /**
     * Drops this collection.
     * @throws Exception on failure.
     * @return boolean whether the operation successful.
     */
    public function drop()
    {
        $token = $this->composeLogToken("drop");
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $result = $this->mongoCollection->drop();
            $this->tryResultError($result);
            Yii::endProfile($token, __METHOD__);

            return true;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Creates an index on the collection and the specified fields.
     * @param array|string $columns column name or list of column names.
     * If array is given, each element in the array has as key the field name, and as
     * value either 1 for ascending sort, or -1 for descending sort.
     * You can specify field using native numeric key with the field name as a value,
     * in this case ascending sort will be used.
     * For example:
     * ~~~
     * [
     *     "name",
     *     "status" => -1,
     * ]
     * ~~~
     * @param array $options list of options in format: optionName => optionValue.
     * @throws Exception on failure.
     * @return boolean whether the operation successful.
     */
    public function createIndex($columns, $options = [])
    {
        $columns = (array)$columns;
        $keys = $this->normalizeIndexKeys($columns);
        $token = $this->composeLogToken("createIndex", [$keys, $options]);
        $options = array_merge(["w" => 1], $options);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            if (method_exists($this->mongoCollection, "createIndex")) {
                $result = $this->mongoCollection->createIndex($keys, $options);
            } else {
                $result = $this->mongoCollection->ensureIndex($keys, $options);
            }
            $this->tryResultError($result);
            Yii::endProfile($token, __METHOD__);

            return true;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Drop indexes for specified column(s).
     * @param string|array $columns column name or list of column names.
     * If array is given, each element in the array has as key the field name, and as
     * value either 1 for ascending sort, or -1 for descending sort.
     * Use value "text" to specify text index.
     * You can specify field using native numeric key with the field name as a value,
     * in this case ascending sort will be used.
     * For example:
     * ~~~
     * [
     *     "name",
     *     "status" => -1,
     *     "description" => "text",
     * ]
     * ~~~
     * @throws Exception on failure.
     * @return boolean whether the operation successful.
     */
    public function dropIndex($columns)
    {
        $columns = (array)$columns;
        $keys = $this->normalizeIndexKeys($columns);
        $token = $this->composeLogToken("dropIndex", [$keys]);
        Yii::info($token, __METHOD__);
        try {
            $result = $this->mongoCollection->deleteIndex($keys);
            $this->tryResultError($result);

            return true;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Compose index keys from given columns/keys list.
     * @param array $columns raw columns/keys list.
     * @return array normalizes index keys array.
     */
    protected function normalizeIndexKeys($columns)
    {
        $keys = [];
        foreach ($columns as $key => $value) {
            if (is_numeric($key)) {
                $keys[$value] = MongoCollection::ASCENDING;
            } else {
                $keys[$key] = $value;
            }
        }

        return $keys;
    }

    /**
     * Drops all indexes for this collection.
     * @throws Exception on failure.
     * @return integer count of dropped indexes.
     */
    public function dropAllIndexes()
    {
        $token = $this->composeLogToken("dropIndexes");
        Yii::info($token, __METHOD__);
        try {
            $result = $this->mongoCollection->deleteIndexes();
            $this->tryResultError($result);

            return $result["nIndexesWas"];
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Returns a cursor for the search results.
     * In order to perform "find" queries use [[Query]] class.
     * @param array $condition query condition
     * @param array $fields fields to be selected
     * @return MongoCursor cursor for the search results
     * @see Query
     */
    public function find($condition = [], $fields = [])
    {
        return $this->mongoCollection->find($this->buildCondition($condition), $fields);
    }

    /**
     * Returns a single document.
     * @param array $condition query condition
     * @param array $fields fields to be selected
     * @return array|null the single document. Null is returned if the query results in nothing.
     * @see http://www.php.net/manual/en/mongocollection.findone.php
     */
    public function findOne($condition = [], $fields = [])
    {
        return $this->mongoCollection->findOne($this->buildCondition($condition), $fields);
    }

    /**
     * Updates a document and returns it.
     * @param array $condition query condition
     * @param array $update update criteria
     * @param array $fields fields to be returned
     * @param array $options list of options in format: optionName => optionValue.
     * @return array|null the original document, or the modified document when $options["new"] is set.
     * @throws Exception on failure.
     * @see http://www.php.net/manual/en/mongocollection.findandmodify.php
     */
    public function findAndModify($condition, $update, $fields = [], $options = [])
    {
        $condition = $this->buildCondition($condition);
        $token = $this->composeLogToken("findAndModify", [$condition, $update, $fields, $options]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $result = $this->mongoCollection->findAndModify($condition, $update, $fields, $options);
            Yii::endProfile($token, __METHOD__);

            return $result;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Inserts new data into collection.
     * @param array|object $data data to be inserted.
     * @param array $options list of options in format: optionName => optionValue.
     * @return MongoId new record id instance.
     * @throws Exception on failure.
     */
    public function insert($data, $options = [])
    {
        $token = $this->composeLogToken("insert", [$data]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $options = array_merge(["w" => 1], $options);
            $this->tryResultError($this->mongoCollection->insert($data, $options));
            Yii::endProfile($token, __METHOD__);

            return is_array($data) ? $data["_id"] : $data->_id;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Inserts several new rows into collection.
     * @param array $rows array of arrays or objects to be inserted.
     * @param array $options list of options in format: optionName => optionValue.
     * @return array inserted data, each row will have "_id" key assigned to it.
     * @throws Exception on failure.
     */
    public function batchInsert($rows, $options = [])
    {
        $token = $this->composeLogToken("batchInsert", [$rows]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $options = array_merge(["w" => 1], $options);
            $this->tryResultError($this->mongoCollection->batchInsert($rows, $options));
            Yii::endProfile($token, __METHOD__);

            return $rows;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Updates the rows, which matches given criteria by given data.
     * Note: for "multiple" mode Mongo requires explicit strategy "$set" or "$inc"
     * to be specified for the "newData". If no strategy is passed "$set" will be used.
     * @param array $condition description of the objects to update.
     * @param array $newData the object with which to update the matching records.
     * @param array $options list of options in format: optionName => optionValue.
     * @return integer|boolean number of updated documents or whether operation was successful.
     * @throws Exception on failure.
     */
    public function update($condition, $newData, $options = [])
    {
        $condition = $this->buildCondition($condition);
        $options = array_merge(["w" => 1, "multiple" => true], $options);
        if ($options["multiple"]) {
            $keys = array_keys($newData);
            if (!empty($keys) && strncmp("$", $keys[0], 1) !== 0) {
                $newData = ["$set" => $newData];
            }
        }
        $token = $this->composeLogToken("update", [$condition, $newData, $options]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $result = $this->mongoCollection->update($condition, $newData, $options);
            $this->tryResultError($result);
            Yii::endProfile($token, __METHOD__);
            if (is_array($result) && array_key_exists("n", $result)) {
                return $result["n"];
            } else {
                return true;
            }
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Update the existing database data, otherwise insert this data
     * @param array|object $data data to be updated/inserted.
     * @param array $options list of options in format: optionName => optionValue.
     * @return MongoId updated/new record id instance.
     * @throws Exception on failure.
     */
    public function save($data, $options = [])
    {
        $token = $this->composeLogToken("save", [$data]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $options = array_merge(["w" => 1], $options);
            $this->tryResultError($this->mongoCollection->save($data, $options));
            Yii::endProfile($token, __METHOD__);

            return is_array($data) ? $data["_id"] : $data->_id;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Removes data from the collection.
     * @param array $condition description of records to remove.
     * @param array $options list of options in format: optionName => optionValue.
     * @return integer|boolean number of updated documents or whether operation was successful.
     * @throws Exception on failure.
     * @see http://www.php.net/manual/en/mongocollection.remove.php
     */
    public function remove($condition = [], $options = [])
    {
        $condition = $this->buildCondition($condition);
        $options = array_merge(["w" => 1, "justOne" => false], $options);
        $token = $this->composeLogToken("remove", [$condition, $options]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $result = $this->mongoCollection->remove($condition, $options);
            $this->tryResultError($result);
            Yii::endProfile($token, __METHOD__);
            if (is_array($result) && array_key_exists("n", $result)) {
                return $result["n"];
            } else {
                return true;
            }
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Returns a list of distinct values for the given column across a collection.
     * @param string $column column to use.
     * @param array $condition query parameters.
     * @return array|boolean array of distinct values, or "false" on failure.
     * @throws Exception on failure.
     */
    public function distinct($column, $condition = [])
    {
        $condition = $this->buildCondition($condition);
        $token = $this->composeLogToken("distinct", [$column, $condition]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $result = $this->mongoCollection->distinct($column, $condition);
            Yii::endProfile($token, __METHOD__);

            return $result;
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Performs aggregation using Mongo Aggregation Framework.
     * @param array $pipeline list of pipeline operators, or just the first operator
     * @param array $pipelineOperator additional pipeline operator. You can specify additional
     * pipelines via third argument, fourth argument etc.
     * @return array the result of the aggregation.
     * @throws Exception on failure.
     * @see http://docs.mongodb.org/manual/applications/aggregation/
     */
    public function aggregate($pipeline, $pipelineOperator = [])
    {
        $args = func_get_args();
        $token = $this->composeLogToken("aggregate", $args);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $result = call_user_func_array([$this->mongoCollection, "aggregate"], $args);
            $this->tryResultError($result);
            Yii::endProfile($token, __METHOD__);

            return $result["result"];
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Performs aggregation using Mongo "group" command.
     * @param mixed $keys fields to group by. If an array or non-code object is passed,
     * it will be the key used to group results. If instance of [[MongoCode]] passed,
     * it will be treated as a function that returns the key to group by.
     * @param array $initial Initial value of the aggregation counter object.
     * @param MongoCode|string $reduce function that takes two arguments (the current
     * document and the aggregation to this point) and does the aggregation.
     * Argument will be automatically cast to [[MongoCode]].
     * @param array $options optional parameters to the group command. Valid options include:
     *  - condition - criteria for including a document in the aggregation.
     *  - finalize - function called once per unique key that takes the final output of the reduce function.
     * @return array the result of the aggregation.
     * @throws Exception on failure.
     * @see http://docs.mongodb.org/manual/reference/command/group/
     */
    public function group($keys, $initial, $reduce, $options = [])
    {
        if (!($reduce instanceof MongoCode)) {
            $reduce = new MongoCode((string) $reduce);
        }
        if (array_key_exists("condition", $options)) {
            $options["condition"] = $this->buildCondition($options["condition"]);
        }
        if (array_key_exists("finalize", $options)) {
            if (!($options["finalize"] instanceof MongoCode)) {
                $options["finalize"] = new MongoCode((string) $options["finalize"]);
            }
        }
        $token = $this->composeLogToken("group", [$keys, $initial, $reduce, $options]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            // Avoid possible E_DEPRECATED for $options:
            if (empty($options)) {
                $result = $this->mongoCollection->group($keys, $initial, $reduce);
            } else {
                $result = $this->mongoCollection->group($keys, $initial, $reduce, $options);
            }
            $this->tryResultError($result);

            Yii::endProfile($token, __METHOD__);
            if (array_key_exists("retval", $result)) {
                return $result["retval"];
            } else {
                return [];
            }
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Performs aggregation using Mongo "map reduce" mechanism.
     * Note: this function will not return the aggregation result, instead it will
     * write it inside the another Mongo collection specified by "out" parameter.
     * For example:
     *
     * ~~~
     * $customerCollection = Yii::$app->mongo->getCollection("customer");
     * $resultCollectionName = $customerCollection->mapReduce(
     *     "function () {emit(this.status, this.amount)}",
     *     "function (key, values) {return Array.sum(values)}",
     *     "mapReduceOut",
     *     ["status" => 3]
     * );
     * $query = new Query();
     * $results = $query->from($resultCollectionName)->all();
     * ~~~
     *
     * @param MongoCode|string $map function, which emits map data from collection.
     * Argument will be automatically cast to [[MongoCode]].
     * @param MongoCode|string $reduce function that takes two arguments (the map key
     * and the map values) and does the aggregation.
     * Argument will be automatically cast to [[MongoCode]].
     * @param string|array $out output collection name. It could be a string for simple output
     * ("outputCollection"), or an array for parametrized output (["merge" => "outputCollection"]).
     * You can pass ["inline" => true] to fetch the result at once without temporary collection usage.
     * @param array $condition criteria for including a document in the aggregation.
     * @param array $options additional optional parameters to the mapReduce command. Valid options include:
     *  - sort - array - key to sort the input documents. The sort key must be in an existing index for this collection.
     *  - limit - the maximum number of documents to return in the collection.
     *  - finalize - function, which follows the reduce method and modifies the output.
     *  - scope - array - specifies global variables that are accessible in the map, reduce and finalize functions.
     *  - jsMode - boolean -Specifies whether to convert intermediate data into BSON format between the execution of the map and reduce functions.
     *  - verbose - boolean - specifies whether to include the timing information in the result information.
     * @return string|array the map reduce output collection name or output results.
     * @throws Exception on failure.
     */
    public function mapReduce($map, $reduce, $out, $condition = [], $options = [])
    {
        if (!($map instanceof MongoCode)) {
            $map = new MongoCode((string) $map);
        }
        if (!($reduce instanceof MongoCode)) {
            $reduce = new MongoCode((string) $reduce);
        }
        $command = [
            "mapReduce" => $this->getName(),
            "map" => $map,
            "reduce" => $reduce,
            "out" => $out
        ];
        if (!empty($condition)) {
            $command["query"] = $this->buildCondition($condition);
        }
        if (array_key_exists("finalize", $options)) {
            if (!($options["finalize"] instanceof MongoCode)) {
                $options["finalize"] = new MongoCode((string) $options["finalize"]);
            }
        }
        if (!empty($options)) {
            $command = array_merge($command, $options);
        }
        $token = $this->composeLogToken("mapReduce", [$map, $reduce, $out]);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $command = array_merge(["mapReduce" => $this->getName()], $command);
            $result = $this->mongoCollection->db->command($command);
            $this->tryResultError($result);
            Yii::endProfile($token, __METHOD__);

            return array_key_exists("results", $result) ? $result["results"] : $result["result"];
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Performs full text search.
     * @param string $search string of terms that MongoDB parses and uses to query the text index.
     * @param array $condition criteria for filtering a results list.
     * @param array $fields list of fields to be returned in result.
     * @param array $options additional optional parameters to the mapReduce command. Valid options include:
     *  - limit - the maximum number of documents to include in the response (by default 100).
     *  - language - the language that determines the list of stop words for the search
     *    and the rules for the stemmer and tokenizer. If not specified, the search uses the default
     *    language of the index.
     * @return array the highest scoring documents, in descending order by score.
     * @throws Exception on failure.
     */
    public function fullTextSearch($search, $condition = [], $fields = [], $options = [])
    {
        $command = [
            "search" => $search
        ];
        if (!empty($condition)) {
            $command["filter"] = $this->buildCondition($condition);
        }
        if (!empty($fields)) {
            $command["project"] = $fields;
        }
        if (!empty($options)) {
            $command = array_merge($command, $options);
        }
        $token = $this->composeLogToken("text", $command);
        Yii::info($token, __METHOD__);
        try {
            Yii::beginProfile($token, __METHOD__);
            $command = array_merge(["text" => $this->getName()], $command);
            $result = $this->mongoCollection->db->command($command);
            $this->tryResultError($result);
            Yii::endProfile($token, __METHOD__);

            return $result["results"];
        } catch (Exception $e) {
            Yii::endProfile($token, __METHOD__);
            throw new Exception($e->getMessage(), (int) $e->getCode(), $e);
        }
    }

    /**
     * Checks if command execution result ended with an error.
     * @param mixed $result raw command execution result.
     * @throws Exception if an error occurred.
     */
    protected function tryResultError($result)
    {
        if (is_array($result)) {
            if (!empty($result["errmsg"])) {
                $errorMessage = $result["errmsg"];
            } elseif (!empty($result["err"])) {
                $errorMessage = $result["err"];
            }
            if (isset($errorMessage)) {
                if (array_key_exists("code", $result)) {
                    $errorCode = (int) $result["code"];
                } elseif (array_key_exists("ok", $result)) {
                    $errorCode = (int) $result["ok"];
                } else {
                    $errorCode = 0;
                }
                throw new Exception($errorMessage, $errorCode);
            }
        } elseif (!$result) {
            throw new Exception("Unknown error, use "w=1" option to enable error tracking");
        }
    }

    /**
     * Throws an exception if there was an error on the last operation.
     * @throws Exception if an error occurred.
     */
    protected function tryLastError()
    {
        $this->tryResultError($this->getLastError());
    }

    /**
     * Converts "yiidb*" quick condition keyword into actual Mongo condition keyword.
     * @param string $key raw condition key.
     * @return string actual key.
     */
    protected function normalizeConditionKeyword($key)
    {
        static $map = [
            "AND" => "$and",
            "OR" => "$or",
            "IN" => "$in",
            "NOT IN" => "$nin",
        ];
        $matchKey = strtoupper($key);
        if (array_key_exists($matchKey, $map)) {
            return $map[$matchKey];
        } else {
            return $key;
        }
    }

    /**
     * Converts given value into [[MongoId]] instance.
     * If array given, each element of it will be processed.
     * @param mixed $rawId raw id(s).
     * @return array|MongoId normalized id(s).
     */
    protected function ensureMongoId($rawId)
    {
        if (is_array($rawId)) {
            $result = [];
            foreach ($rawId as $key => $value) {
                $result[$key] = $this->ensureMongoId($value);
            }

            return $result;
        } elseif (is_object($rawId)) {
            if ($rawId instanceof MongoId) {
                return $rawId;
            } else {
                $rawId = (string) $rawId;
            }
        }
        try {
            $mongoId = new MongoId($rawId);
        } catch (MongoException $e) {
            // invalid id format
            $mongoId = $rawId;
        }

        return $mongoId;
    }
	
	
	public function buildGtCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?gt" => $value]];
    }
	
	
	public function buildGteCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?gte" => $value]];
    }
	
	
	public function buildLtCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?lt" => $value]];
    }
	
	public function buildLteCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        return [$column => ["?lte" => $value]];
    }

    /**
     * Parses the condition specification and generates the corresponding Mongo condition.
     * @param array $condition the condition specification. Please refer to [[Query::where()]]
     * on how to specify a condition.
     * @return array the generated Mongo condition
     * @throws InvalidParamException if the condition is in bad format
     */
    public function buildCondition($condition)
    {
        static $builders = [
            "NOT" => "buildNotCondition",
            "AND" => "buildAndCondition",
            "OR" => "buildOrCondition",
            "BETWEEN" => "buildBetweenCondition",
            "NOT BETWEEN" => "buildBetweenCondition",
            "IN" => "buildInCondition",
            "NOT IN" => "buildInCondition",
            "REGEX" => "buildRegexCondition",
            "LIKE" => "buildLikeCondition",
			">" 	=> "buildGtCondition",
			">="	=> "buildGteCondition",
			"<" 	=> "buildLtCondition",
			"<=" 	=> "buildLteCondition",
        ];

        if (!is_array($condition)) {
            throw new InvalidParamException("Condition should be an array.");
        } elseif (empty($condition)) {
            return [];
        }
        if (isset($condition[0])) { // operator format: operator, operand 1, operand 2, ...
            $operator = strtoupper($condition[0]);
            if (isset($builders[$operator])) {
                $method = $builders[$operator];
                array_shift($condition);

                return $this->$method($operator, $condition);
            } else {
                throw new InvalidParamException("Found unknown operator in query: " . $operator);
            }
        } else {
            // hash format: "column1" => "value1", "column2" => "value2", ...
            return $this->buildHashCondition($condition);
        }
    }

    /**
     * Creates a condition based on column-value pairs.
     * @param array $condition the condition specification.
     * @return array the generated Mongo condition.
     */
    public function buildHashCondition($condition)
    {
        $result = [];
        foreach ($condition as $name => $value) {
            if (strncmp("$", $name, 1) === 0) {
                // Native Mongo condition:
                $result[$name] = $value;
            } else {
                if (is_array($value)) {
                    if (array_key_exists(0, $value)) {
                        // Quick IN condition:
                        $result = array_merge($result, $this->buildInCondition("IN", [$name, $value]));
                    } else {
                        // Mongo complex condition:
                        $result[$name] = $value;
                    }
                } else {
                    // Direct match:
                    if ($name == "_id") {
                        $value = $this->ensureMongoId($value);
                    }
                    $result[$name] = $value;
                }
            }
        }

        return $result;
    }

    /**
     * Composes `NOT` condition.
     * @param string $operator the operator to use for connecting the given operands
     * @param array $operands the Mongo conditions to connect.
     * @return array the generated Mongo condition.
     * @throws InvalidParamException if wrong number of operands have been given.
     */
    public function buildNotCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }

        list($name, $value) = $operands;

        $result = [];
        if (is_array($value)) {
            $result[$name] = ["$not" => $this->buildCondition($value)];
        } else {
            if ($name == "_id") {
                $value = $this->ensureMongoId($value);
            }
            $result[$name] = ["$ne" => $value];
        }

        return $result;
    }

    /**
     * Connects two or more conditions with the `AND` operator.
     * @param string $operator the operator to use for connecting the given operands
     * @param array $operands the Mongo conditions to connect.
     * @return array the generated Mongo condition.
     */
    public function buildAndCondition($operator, $operands)
    {
        $operator = $this->normalizeConditionKeyword($operator);
        $parts = [];
        foreach ($operands as $operand) {
            $parts[] = $this->buildCondition($operand);
        }

        return [$operator => $parts];
    }

    /**
     * Connects two or more conditions with the `OR` operator.
     * @param string $operator the operator to use for connecting the given operands
     * @param array $operands the Mongo conditions to connect.
     * @return array the generated Mongo condition.
     */
    public function buildOrCondition($operator, $operands)
    {
        $operator = $this->normalizeConditionKeyword($operator);
        $parts = [];
        foreach ($operands as $operand) {
            $parts[] = $this->buildCondition($operand);
        }

        return [$operator => $parts];
    }

    /**
     * Creates an Mongo condition, which emulates the `BETWEEN` operator.
     * @param string $operator the operator to use
     * @param array $operands the first operand is the column name. The second and third operands
     * describe the interval that column value should be in.
     * @return array the generated Mongo condition.
     * @throws InvalidParamException if wrong number of operands have been given.
     */
    public function buildBetweenCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1], $operands[2])) {
            throw new InvalidParamException("Operator "$operator" requires three operands.");
        }
        list($column, $value1, $value2) = $operands;
        if (strncmp("NOT", $operator, 3) === 0) {
            return [
                $column => [
                    "$lt" => $value1,
                    "$gt" => $value2,
                ]
            ];
        } else {
            return [
                $column => [
                    "$gte" => $value1,
                    "$lte" => $value2,
                ]
            ];
        }
    }

    /**
     * Creates an Mongo condition with the `IN` operator.
     * @param string $operator the operator to use (e.g. `IN` or `NOT IN`)
     * @param array $operands the first operand is the column name. If it is an array
     * a composite IN condition will be generated.
     * The second operand is an array of values that column value should be among.
     * @return array the generated Mongo condition.
     * @throws InvalidParamException if wrong number of operands have been given.
     */
    public function buildInCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }

        list($column, $values) = $operands;

        $values = (array) $values;

        if (!is_array($column)) {
            $columns = [$column];
            $values = [$column => $values];
        } elseif (count($column) < 2) {
            $columns = $column;
            $values = [$column[0] => $values];
        } else {
            $columns = $column;
        }

        $operator = $this->normalizeConditionKeyword($operator);
        $result = [];
        foreach ($columns as $column) {
            if ($column == "_id") {
                $inValues = $this->ensureMongoId($values[$column]);
            } else {
                $inValues = $values[$column];
            }
            $result[$column][$operator] = array_values($inValues);
        }

        return $result;
    }

    /**
     * Creates a Mongo regular expression condition.
     * @param string $operator the operator to use
     * @param array $operands the first operand is the column name.
     * The second operand is a single value that column value should be compared with.
     * @return array the generated Mongo condition.
     * @throws InvalidParamException if wrong number of operands have been given.
     */
    public function buildRegexCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        if (!($value instanceof MongoRegex)) {
            $value = new MongoRegex($value);
        }

        return [$column => $value];
    }

    /**
     * Creates a Mongo condition, which emulates the `LIKE` operator.
     * @param string $operator the operator to use
     * @param array $operands the first operand is the column name.
     * The second operand is a single value that column value should be compared with.
     * @return array the generated Mongo condition.
     * @throws InvalidParamException if wrong number of operands have been given.
     */
    public function buildLikeCondition($operator, $operands)
    {
        if (!isset($operands[0], $operands[1])) {
            throw new InvalidParamException("Operator "$operator" requires two operands.");
        }
        list($column, $value) = $operands;
        if (!($value instanceof MongoRegex)) {
            $value = new MongoRegex("/" . preg_quote($value) . "/i");
        }

        return [$column => $value];
    }
}




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