Question

这是我的疑问。

$this->db->where( 'user_id',$this->session->userdata('id'));
 $this->db->from('votes');
$user_voted = $this->db->count_all_results();

我想从表中获取用户记录但是count_all_results（）;不计数表。任何人告诉我解决方案。如果我的查询不正确。

Answer 1

$ this-＆gt; db-＆gt; count_all_results（）在数据库调用中替换$ this-＆gt; db-＆gt; get（）。

$this->db->select('id');
$this->db->from('table');
$this->db->where($your_conditions);
$num_results = $this->db->count_all_results();

对于实际查询（您应该已经拥有）：

$this->db->select($your_columns);
$this->db->from('table');
$this->db->where($your_conditions);
$this->db->limit($limit);
$query = $this->db->get();

或者你可以试试这个：

$this->db->from(....);
$this->db->where(....);
$db_results = $this->get();

$results = $db_results->result();
$num_rows = $db_results->num_rows();

也可以尝试：

$id = $this->session->userdata('id');

$query = $this->db
                  ->select(column one, column two)
                  ->where('user_id',$id)
                  ->get('votes');
$rowcount = $query->num_rows();

Answer 2

试试这段代码

items: [          
      fileField,
      new Ext.form.DateField({
          xtype: 'datefield',
          fieldLabel: 'Start date',
          name: 'startdate',
          format: 'd-m-Y'
      }),
      new Ext.form.DateField({
          xtype: 'datefield',
          fieldLabel: 'End date',
          name: 'enddate',
          format: 'd-m-Y'
      }),

      new Ext.form.ComboBox(selectStyleComboboxConfig)]

Answer 3

行或计数的类似内容：

$id=$this->session->userdata('id');
// num rows example
$this->db->select('*');
$this->db->where('user_id',$id);
$query = $this->db->get('votes');
$num = $query->num_rows();
// here you can do something with $query

// count all example
$this->db->where('user_id',$id);
$num = $this->db->count_all_results('votes');
// here you only have $num, no $query

Codigenator活动记录count_all_results（）

3 个答案: