526 lines
22 KiB
PHP
526 lines
22 KiB
PHP
<?php
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namespace Admin\Model;
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use Think\Model;
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class TableFieldModel extends Model{
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//自动验证
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//array(验证字段,验证规则,错误提示,[验证条件,附加规则,验证时间])
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protected $_validate = array(
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array('table_id', 'require', '请选择数据表！'),
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array('formtype', 'require', '字段类型不能为空！'),
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array('field', 'require', '字段名称必须填写！'),
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array('field', 'isFieldUnique', '该字段名称已经存在！', 0, 'callback', 1),
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array('name', 'require', '字段别名必须填写！'),
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array('field', '/^[a-z_0-9]+$/i', '字段名只支持英文或数字！', 0, 'regex', 3),
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);
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/**
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* 验证字段名是否已经存在
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* @param type $fieldName
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* @return boolean false已经存在，true不存在
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*/
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public function isFieldUnique($fieldName) {
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if (empty($fieldName)) {
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return true;
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}
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if ($this->where(array('table_id' =>I("table_id"), 'field' => $fieldName))->count()){
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return false;
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}
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return true;
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}
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/**
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* 根据模型ID，返回表名
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* @param type $table_id
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* @param type $table_id
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* @return string
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*/
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protected function getTbName($table_id, $issystem = 1) {
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//表名获取
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$table_name = M("table")->where(array("table_id"=>$table_id))->getField("table_name");
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$table_name="cms_".$table_name;
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//完整表名获取 判断主表 还是副表
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$table_name = $issystem ? $table_name : $table_name . "_data";
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return $table_name;
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}
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//增加
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public function data_add(){
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$data=$this->create();
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//数据表id
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$table_id = $data['table_id'];
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$fieldtype = $data['fieldtype'];
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//完整表名获取 判断主表 还是副表
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$table_name = $this->getTbName($table_id, $data['issystem']);
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if (!$this->table_exists($table_name)) {
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$this->error = '数据表不存在！';
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return false;
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}
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//检查字段是否存在
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if ($this->field_exists($table_name, $data['field'])) {
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$this->error = '该字段已经存在！';
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return false;
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}
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//增加字段
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$field = array(
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'tablename' => C("DB_PREFIX") . $table_name,
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'fieldname' => $data['field'],
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'fieldlen' => $data['fieldlen'],
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'defaultvalue' => $data['defaultvalue'],
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);
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if ($this->addFieldSql($fieldtype, $field)) {
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//更新htmlcode
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$TableModel=new \Admin\Model\TableModel();
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$data['htmlcode']=$TableModel->createFieldHtmlCode($data);
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$data['memberhtmlcode']=$TableModel->createMemberFieldHtmlCode($data);
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//
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$fieldid = $this->add($data);
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if ($fieldid) {
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return $fieldid;
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} else {
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$this->error = '字段信息入库失败！';
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//回滚
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$this->execute("ALTER TABLE `{$field['tablename']}` DROP `{$field['fieldname']}`");
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return false;
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}
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} else {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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}
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//修改
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public function data_editor(){
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$data=$this->create();
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if (!$data['field_id']) {
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$this->error = '缺少字段id！';
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return false;
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} else {
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$field_id = $field_id ? $field_id : (int) $data['field_id'];
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}
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//重置htmlcode
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$TableModel=new \Admin\Model\TableModel();
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$data['htmlcode']=htmlspecialchars_decode($data['htmlcode']);
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$data['htmlcode']=$TableModel->createFieldHtmlCode($data);
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//投稿的
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$data['memberhtmlcode']=htmlspecialchars_decode($data['memberhtmlcode']);
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$data['memberhtmlcode']=$TableModel->createMemberFieldHtmlCode($data);
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//原字段信息
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$info = $this->where(array("field_id" => $field_id))->find();
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if (empty($info)){
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$this->error = '该字段不存在！';
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return false;
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}
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//字段主表副表不能修改
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unset($data['issystem']);
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//字段类型
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if (empty($data['formtype'])) {
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$data['formtype'] = $info['formtype'];
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}
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//模型id
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$table_id = $info['table_id'];
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$field_type = $data['fieldtype'];
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//完整表名获取 判断主表 还是副表
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$tablename = $this->getTbName($table_id, $info['issystem']);
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if (!$this->table_exists($tablename)) {
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$this->error = '数据表不存在！';
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return false;
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}
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if (false !== $this->save($data)) {
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//如果字段名变更
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if ($data['field'] && $info['field']) {
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//检查字段是否存在，只有当字段名改变才检测
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if ($data['field'] != $info['field'] && $this->field_exists($tablename, $data['field'])) {
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$this->error = '该字段已经存在！';
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//回滚
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$this->where(array("field_id" => $field_id))->save($info);
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return false;
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}
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$field = array(
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'tablename' => C("DB_PREFIX") . $tablename,
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'newfilename' => $data['field'],
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'oldfilename' => $info['field'],
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'fieldlen' => $data['fieldlen'],
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'defaultvalue' => $data['defaultvalue'],
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);
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if (false === $this->editFieldSql($field_type, $field)) {
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$this->error = '数据库字段结构更改失败！';
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//回滚
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$this->where(array("field_id" => $field_id))->save($info);
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return false;
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}
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//根据table_id查询model表，并更新modeltemp
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$model=M("model")->where(array("table_id"=>$table_id))->select();
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$ModelModel=new \Admin\Model\ModelModel();
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foreach($model as $v){
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$ModelModel->updateModelTemp($v["modelid"]);
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}
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}
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} else {
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$this->error = '数据库更新失败！';
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return false;
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}
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//
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//
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return $data;
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}
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//删除字段
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public function data_delete($field_id,$systemfield) {
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//原字段信息
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$info = $this->where(array("field_id" => $field_id))->find();
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if (empty($info)) {
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$this->error = '该字段不存在！';
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return false;
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}
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//模型id
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$table_id = $info['table_id'];
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//完整表名获取 判断主表 还是副表
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$tablename = $this->getTbName($table_id, $info['issystem']);
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if (!$this->table_exists($tablename)) {
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$this->error = '数据表不存在！';
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return false;
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}
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//判断是否允许删除
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if (in_array($info['field'],$systemfield)){
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$this->error = '系统字段不允许被删除！';
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return false;
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}
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if ($this->deleteFieldSql($info['field'], C("DB_PREFIX") . $tablename)) {
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$this->where(array("field_id" => $field_id, "table_id" => $table_id))->delete();
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//根据table_id查询model表，并更新modeltemp
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$model=M("model")->where(array("table_id"=>$table_id))->select();
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$ModelModel=new \Admin\Model\ModelModel();
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foreach($model as $v){
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$ModelModel->updateModelTemp($v["modelid"]);
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}
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} else {
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$this->error = '数据库表字段删除失败！';
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return false;
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}
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return true;
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}
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/**
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* 根据字段类型，删除对应的字段到相应表里面
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* @param type $filename 字段名称
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* @param type $tablename 完整表名
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*/
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protected function deleteFieldSql($filename, $tablename) {
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//不带表前缀的表名
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$noprefixTablename = str_replace(C("DB_PREFIX"), '', $tablename);
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if (empty($tablename) || empty($filename)) {
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$this->error = '表名或者字段名不能为空！';
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return false;
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}
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if (false === $this->table_exists($noprefixTablename)) {
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$this->error = '该表不存在！';
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return false;
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}
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$sql = "ALTER TABLE `{$tablename}` DROP `{$filename}`;";
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if (false === $this->execute($sql)) {
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$this->error = '字段删除失败！';
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return false;
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}
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return true;
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}
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/**
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* 根据字段类型，增加对应的字段到相应表里面
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* @param type $field_type 字段类型
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* @param type $field 相关配置
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* $field = array(
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* 'tablename' 表名(完整表名)
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* 'fieldname' 字段名
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* 'maxlength' 最大长度
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* 'minlength' 最小值
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* 'defaultvalue' 默认值
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* 'minnumber' 是否正整数 和整数 1为正整数，-1是为整数
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* 'decimaldigits' 小数位数
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* )
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*/
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protected function addFieldSql($field_type, $field) {
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//表名
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$tablename = $field['tablename'];
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//字段名
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$fieldname = $field['fieldname'];
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//长度
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$fieldlen = $field['fieldlen'];
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switch ($field_type) {
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case "varchar":
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if (!$fieldlen) {
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$fieldlen = 255;
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}
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$fieldlen = min($fieldlen, 255);
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` VARCHAR( {$fieldlen} ) DEFAULT ''";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "tinyint":
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if (!$fieldlen) {
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$fieldlen = 3;
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}
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` TINYINT( {$fieldlen} ) UNSIGNED NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "smallint":
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$minnumber = intval($minnumber);
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` SMALLINT( {$fieldlen} ) UNSIGNED NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "mediumint":
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$minnumber = intval($minnumber);
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` INT ( {$fieldlen} ) UNSIGNED NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "int":
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$minnumber = intval($minnumber);
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` INT ( {$fieldlen} ) UNSIGNED NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "mediumtext":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` MEDIUMTEXT";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "text":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` TEXT";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "date":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` DATE DEFAULT ''";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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case "datetime":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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case "timestamp":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "double":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` DOUBLE NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "float":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` FLOAT( {$fieldlen} ) NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "bigint":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` BIGINT( {$fieldlen} ) NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "longtext":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` LONGTEXT";
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if (false === $this->execute($sql)) {
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$this->error = '数据库字段添加失败！';
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return false;
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}
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break;
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case "char":
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$sql = "ALTER TABLE `{$tablename}` ADD `{$fieldname}` CHAR( {$fieldlen} ) DEFAULT ''";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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default:
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return false;
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break;
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}
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return true;
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}
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/**
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* 执行数据库表结构更改
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* @param type $field_type 字段类型
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* @param type $field 相关配置
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* $field = array(
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* 'tablename' 表名(完整表名)
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* 'newfilename' 新字段名
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* 'oldfilename' 原字段名
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* 'maxlength' 最大长度
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* 'minlength' 最小值
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* 'defaultvalue' 默认值
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* 'minnumber' 是否正整数 和整数 1为正整数，-1是为整数
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* 'decimaldigits' 小数位数
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* )
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*/
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protected function editFieldSql($field_type, $field) {
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//表名
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$tablename = $field['tablename'];
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//原字段名
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$oldfilename = $field['oldfilename'];
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//新字段名
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$newfilename = $field['newfilename'] ? $field['newfilename'] : $oldfilename;
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//长度
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$fieldlen = $field['fieldlen'];
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if (empty($tablename) || empty($newfilename)) {
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$this->error = '表名或者字段名不能为空！';
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return false;
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}
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switch ($field_type) {
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case 'varchar':
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//最大值
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if (!$fieldlen) {
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$fieldlen = 255;
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}
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$fieldlen = min($fieldlen, 255);
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$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` VARCHAR( {$fieldlen} ) DEFAULT ''";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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case 'tinyint':
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$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` TINYINT( {$fieldlen} ) UNSIGNED NOT NULL DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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case 'smallint':
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$minnumber = intval($minnumber);
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$defaultvalue = intval($defaultvalue);
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$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` SMALLINT ( {$fieldlen} ) UNSIGNED NOT NULL DEFAULT '{$defaultvalue}' DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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case 'mediumint':
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$minnumber = intval($minnumber);
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$defaultvalue = intval($defaultvalue);
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$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` MEDIUMINT ( {$fieldlen} ) UNSIGNED NOT NULL DEFAULT '{$defaultvalue}' DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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case 'int':
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$minnumber = intval($minnumber);
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$defaultvalue = intval($defaultvalue);
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$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` INT ( {$fieldlen} ) NOT NULL DEFAULT '{$defaultvalue}' DEFAULT 0";
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if (false === $this->execute($sql)) {
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$this->error = '字段结构更改失败！';
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return false;
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}
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break;
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case 'mediumtext':
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||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` MEDIUMTEXT";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case 'text':
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` TEXT";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case 'date':
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` DATE DEFAULT ''";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case 'datetime':
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case 'timestamp':
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case "double":
|
||
$defaultvalue = intval($defaultvalue);
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` DOUBLE NOT NULL DEFAULT 0";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case "float":
|
||
$defaultvalue = intval($defaultvalue);
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` FLOAT(" . $minnumber . ") NOT NULL DEFAULT 0";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case "bigint":
|
||
$defaultvalue = intval($defaultvalue);
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` BIGINT NOT NULL DEFAULT 0";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case "longtext":
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` LONGTEXT";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
case "char":
|
||
$sql = "ALTER TABLE `{$tablename}` CHANGE `{$oldfilename}` `{$newfilename}` CHAR(" . $fieldlen . ") DEFAULT ''";
|
||
if (false === $this->execute($sql)) {
|
||
$this->error = '字段结构更改失败！';
|
||
return false;
|
||
}
|
||
break;
|
||
default:
|
||
$this->error = "字段类型" . $field_type . "不存在相应信息！";
|
||
return false;
|
||
break;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
}
|