feat: init project codebase
This commit is contained in:
sinde21
@@ -0,0 +1,257 @@
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<?php
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defined('BASEPATH') OR exit('No direct script access allowed');
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//定义一些可复用的功能
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class MY_Model extends CI_Model
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{
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protected $table = '';
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protected $join = [];//定义以下属性[table,on,type]
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protected $keyword_field = [];//作为关键词搜索的字段
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protected $has_create_time = true;//是否有创建时间create_time
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protected $has_update_time = true;//是否有更新时间update_time
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protected $list_field = 'base.*';//默认列表筛选的字段
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protected $unique_field = null;//不允许重复的字段
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protected $where_field_map = [];//过滤条件字段重命名
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protected $null_field = [];//特定字段的0值填充为null值
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public function __construct()
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{
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$this->load->database();
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}
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function listing($filters = [], $offset, $segment, $select=null, $order_field='base.id',$order='DESC')
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{
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if(empty($select)){
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$select = $this->list_field;
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}
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$this->db->select('SQL_CALC_FOUND_ROWS '.$select,false);
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$this->db->from($this->table.' as base');
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if(!empty($this->join)){
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foreach ($this->join as $_join) {
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$this->db->join($_join['table'], $_join['on'],$_join['type']);
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}
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}
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if(!empty($order_field)){
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$this->db->order_by($order_field,$order);
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}
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//包含筛选条件
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if(!empty($filters)) foreach ($filters as $key=>$val) {
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if($val === ''){
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continue;
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}
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//容易冲突的键
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if(in_array($key,['id','name','create_time'])){
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$key = 'base.'.$key;
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}
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//字段别名
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if(isset($this->where_field_map[$key])){
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$key = $this->where_field_map[$key];
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}
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//某些字段的0值填充为null
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if($val == '0' && in_array($key,$this->null_field)){
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$this->db->where("$key is null");
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continue;
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}
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//含有关键词
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if(!empty($this->keyword_field)) {
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if($key === 'title'){
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//对于关键词，拼合所有筛选条件
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$likeCriteria = [];
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foreach ($this->keyword_field as $_field) {
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$likeCriteria[] = $_field." LIKE '%".$val."%'";
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}
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$this->db->where('('.implode(' OR ',$likeCriteria).')');
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continue;
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}elseif(in_array($key,$this->keyword_field)){
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$this->db->where($key." LIKE '%".$val."%'");
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continue;
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}
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}
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//对于数组
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if(is_array($val)){
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$this->db->where("$key BETWEEN {$val[0]} and {$val[1]}");
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continue;
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}
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//含有比较符号
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$op = substr($val,0,1);
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if(in_array($op,['>','<'])){
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$this->db->where($key.' '.$op,substr($val,1));
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continue;
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}
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//普通值
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$this->db->where($key,$val);
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continue;
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}
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$this->db->limit($segment, $offset);
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$query = $this->db->get();
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$result['items'] = $query->result_array();
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//echo $this->db->last_query(); die;
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$query = $this->db->query('SELECT FOUND_ROWS() AS `Count`');
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$result['total'] = (int)$query->row()->Count;
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return $result;
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}
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public function get($id=false, $field='base.id', $is_list=false, $select=null)
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{
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if(empty($select)){
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$select = $this->list_field;
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}
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$this->db->select($select);
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$this->db->from($this->table.' as base');
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if(!empty($this->join)){
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foreach ($this->join as $_join) {
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$this->db->join($_join['table'], $_join['on'],$_join['type']);
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}
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}
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if($id !== false){
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if(is_array($id)){
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$this->db->where_in($field, $id);
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}else{
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$this->db->where($field, $id);
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}
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}
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$query = $this->db->get();
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if($is_list){
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return $query->result_array();
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}else{
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return $query->row_array();
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}
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}
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//更新单个或多个
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public function update($data, $where, $one_row = true)
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{
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if($one_row){
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if(!empty($this->unique_field)){
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$ret = $this->get($data[$this->unique_field],$this->unique_field);
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if($ret && $ret['id'] != $data['id']){
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return -1;
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}
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}
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}
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if($this->has_update_time){
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$data['update_time'] = empty($data['update_time'])?time():$data['update_time'];
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}
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$this->db->where($where);
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$this->db->update($this->table,$data);
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return $this->db->affected_rows();
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}
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public function add($data)
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{
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if($this->has_create_time){
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$data['create_time'] = empty($data['create_time'])?time():$data['create_time'];
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}
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if(!empty($this->unique_field)){
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$ret = $this->get($data[$this->unique_field],$this->unique_field);
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if($ret){
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return -1;
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}
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}
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$this->db->insert($this->table,$data);
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return $this->db->insert_id();
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}
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function batchAdd($data)
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{
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if(!empty($this->unique_field)){
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$val = array_column($data,$this->unique_field);
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$ret = $this->get($val,$this->unique_field);
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if($ret){
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return $ret[$this->unique_field].'已存在，不能重复添加';
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}
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}
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if($this->has_create_time){
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$time = time();
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foreach ($data as &$item) {
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$item['create_time'] = $time;
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}
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}
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return $this->db->insert_batch($this->table, $data);
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}
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//与批量新建的区别是检测到重复字段则更新
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function batchUpdateInsert($data)
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{
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//需要新增的条目
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$left = [];
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foreach ($data as $item) {
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//有id则更新
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if(!empty($item['id'])){
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$this->update($item,'id = '.$item['id']);
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continue;
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}
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if(!empty($this->unique_field)){
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$val = array_column($item,$this->unique_field);
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$this->get($val,$this->unique_field);
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//存在则更新
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$this->update($item,$this->unique_field.' = "'.$item[$this->unique_field].'"');
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continue;
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}
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$left[] = $item;
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}
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if($this->has_create_time){
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$time = time();
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unset($item);
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foreach ($left as &$item) {
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$item['create_time'] = $time;
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}
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}
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/*$temp1 = array_keys($left[0]);
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* 检查字段情况
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foreach ($left as $k=>$item) {
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foreach ($temp1 as $key) {
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if(!in_array($key, array_keys($item))){
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die($k.$key);
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}
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}
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}
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die('');
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*/
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return $this->db->insert_batch($this->table, $left);
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}
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function batchDel($id, $field='id')
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{
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$this->db->where_in($field, $id);
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return $this->db->delete($this->table);
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}
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//获取总数
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function total($filters=[],$join=false)
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{
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$this->db->select('count(*) as count');
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$this->db->from($this->table.' base');
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//支持筛选条件
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if($filters){
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foreach ($filters as $filter) {
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$this->db->where($filter);
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}
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}
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//支持连表
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if($join && !empty($this->join)){
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foreach ($this->join as $_join) {
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$this->db->join($_join['table'], $_join['on'],$_join['type']);
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}
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}
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$query = $this->db->get();
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$row = $query->row_array();
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return $row['count'];
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}
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//按天统计
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function sumByDay($start=0,$end=0)
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{
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$this->db->select('count(*) as count');
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$this->db->from($this->table);
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$this->db->where('create_time>=', $start);
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$this->db->where('create_time<=', $end);
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$this->db->group_by('DATE_FORMAT(from_unixtime(create_time),\'%Y-%m-%d\')');
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$query = $this->db->get();
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return $query->result_array();
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}
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}
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