Question

我有以下Model，我不确定如何返回结果以便我可以选择所需的行，例如$this->model_name->function_name->function_value - 还是有更好的方式？

型号：

function companyDetails()
    {
       $this->db->select('coreCompanyName, coreContactName, coreContactEmail');

        $this->db->from('core');

        $query = $this->db->get(1);

        foreach($query->result() as $row)
        {
            echo $row->coreCompanyName;
        }
        return $query;
    }

Answer 1

通常，您可以将模型函数称为getCompanyDetailsByID()，其中传递唯一标识符，并相应地返回单个结果对象：

<?php
function getCompanyDetailsByID($id)
{
    $this->db->select('coreCompanyName, coreContactName, coreContactEmail');
    $this->db->where('coreCompanyID', $id);
    return $this->db->get('core')->first_row();
}

将“coreCompanyID”替换为您的主要列名。

<强>此外：

以下是您获取所有公司信息的方式：

<?php
function getCompanyDetails()
{
    $this->db->select('coreCompanyName, coreContactName, coreContactEmail');
    return $this->db->get('core')->result();
}

// And then in your controller:
function display()
{
    $this->load->model('core');
    $companies = $this->core->getCompanyDetails();
    // Here's where you would probably load the data into a view
    foreach ($companies as $company)
    {
        echo $company->coreCompanyName.'<br />';
    }
}

最终答案！：P

<?php function companyDetails() { static $details; if ( !$details) { $this->db->select('coreCompanyName, coreContactName, coreContactEmail'); $this->db->where('coreCompanyID', $id); $details = $this->db->get('core')->first_row(); } return $details; }

现在你可以对该函数进行多次调用，它只会打到你的数据库一次，例如：

<?php echo $this->core_model->companyDetails()->coreCompanyName; // do stuff echo $this->core_model->companyDetails()->coreContactName; // more stuff echo $this->core_model->companyDetails()->coreContactEmail;

所有这些只会打到你的数据库一次。

Foreach循环返回数据作为结果

1 个答案: