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完善数据库类

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thinkphp
2016-04-16 15:51:16 +08:00
parent c62bc8bca2
commit 6fa007dc77
3 changed files with 89 additions and 50 deletions
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92
library/think/db/Query.php
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@@ -13,7 +13,6 @@ namespace think\db;
use PDO;
use think\Cache;
use think\Config;
use think\Db;
use think\Exception;
use think\Loader;
@@ -71,7 +70,7 @@ class Query
}
/**
* 获取当前的builder
* 获取当前的builder实例对象
* @access protected
* @return \think\db\Builder
*/
@@ -305,7 +304,7 @@ class Query
}
}
} else {
$prefix = $this->config['prefix'];
$prefix = $this->connection->getAttribute('prefix');
// 传入的表名为数组
if (is_array($join)) {
if (0 !== $key = key($join)) {
@@ -324,7 +323,7 @@ class Query
} else {
$join = trim($join);
if (0 === strpos($join, '__')) {
$table = $this->parseSqlTable($join);
$table = $this->connection->parseSqlTable($join);
} elseif (false === strpos($join, '(') && !empty($prefix) && 0 !== strpos($join, $prefix)) {
// 传入的表名中不带有'('并且不以默认的表前缀开头时加上默认的表前缀
$table = $prefix . $join;
@@ -615,6 +614,26 @@ class Query
return $this;
}
/**
* 查询缓存
* @access public
* @param mixed $key
* @param integer $expire
* @return $this
*/
public function cache($key = true, $expire = null)
{
// 增加快捷调用方式 cache(10) 等同于 cache(true, 10)
if (is_numeric($key) && is_null($expire)) {
$expire = $key;
$key = true;
}
if (false !== $key) {
$this->options['cache'] = ['key' => $key, 'expire' => $expire];
}
return $this;
}
/**
* 指定group查询
* @access public
@@ -839,7 +858,7 @@ class Query
if (in_array($type, [Model::HAS_ONE, Model::BELONGS_TO])) {
if (0 == $i) {
$joinName = strtolower(basename(str_replace('\\', '/', $this->options['model'])));
$joinTable = $this->getTableName();
$joinTable = $this->connection->getTableName();
$this->table($joinTable)->alias($joinName)->field(true, false, $joinTable, $joinName);
}
// 预载入封装
@@ -1030,6 +1049,9 @@ class Query
*/
public function select($data = [])
{
if ($data instanceof Query) {
return $data->select();
}
// 分析查询表达式
$options = $this->parseExpress();
@@ -1041,10 +1063,17 @@ class Query
$this->parsePkWhere($data, $options);
}
// 生成查询SQL
$sql = $this->builder()->select($options);
// 执行查询操作
$resultSet = $this->connection->query($sql, $this->getBind(), $options['fetch_sql'], $options['master'], $options['fetch_pdo']);
if (isset($options['cache'])) {
// 判断查询缓存
$cache = $options['cache'];
$key = is_string($cache['key']) ? $cache['key'] : md5(serialize($options));
$resultSet = Cache::get($key);
} else {
// 生成查询SQL
$sql = $this->builder()->select($options);
// 执行查询操作
$resultSet = $this->connection->query($sql, $this->getBind(), $options['fetch_sql'], $options['master'], $options['fetch_pdo']);
}
// 返回结果处理
if (!empty($resultSet)) {
@@ -1057,18 +1086,21 @@ class Query
return $resultSet;
}
if (isset($cache)) {
// 缓存数据集
Cache::set($key, $resultSet, $cache['expire']);
}
// 数据列表读取后的处理
if (!empty($options['model'])) {
// 生成模型对象
$model = $options['model'];
foreach ($resultSet as $key => $result) {
if (!empty($options['model'])) {
// 返回模型对象
$result = new $options['model']($result);
$result->isUpdate(true);
// 关联查询
if (!empty($options['relation'])) {
$result->relationQuery($options['relation']);
}
$result = new $model($result);
$result->isUpdate(true);
// 关联查询
if (!empty($options['relation'])) {
$result->relationQuery($options['relation']);
}
$resultSet[$key] = $result;
}
@@ -1089,6 +1121,9 @@ class Query
*/
public function find($data = [])
{
if ($data instanceof Query) {
return $data->find();
}
// 分析查询表达式
$options = $this->parseExpress();
@@ -1098,8 +1133,18 @@ class Query
}
$options['limit'] = 1;
$sql = $this->builder()->select($options);
$result = $this->connection->query($sql, $this->getBind(), $options['fetch_sql'], $options['master'], $options['fetch_pdo']);
if (isset($options['cache'])) {
// 判断查询缓存
$cache = $options['cache'];
$key = is_string($cache['key']) ? $cache['key'] : md5(serialize($options));
$result = Cache::get($key);
} else {
// 生成查询SQL
$sql = $this->builder()->select($options);
// 执行查询
$result = $this->connection->query($sql, $this->getBind(), $options['fetch_sql'], $options['master'], $options['fetch_pdo']);
}
// 数据处理
if (!empty($result)) {
@@ -1113,6 +1158,11 @@ class Query
return $result;
}
if (isset($cache)) {
// 缓存数据
Cache::set($key, $result, $cache['expire']);
}
$data = $result[0];
if (!empty($options['model'])) {
// 返回模型对象
@@ -1151,7 +1201,7 @@ class Query
* @param array $data 表达式
* @return integer
*/
public function delete($data)
public function delete($data = [])
{
// 分析查询表达式
$options = $this->parseExpress();