php - 我正在开发一个 php 购物 list 函数/api

Question

返回一组购物 list 对象，或者是购物者的，或者是具有“建议的”标志='Y'的 list

当我手动将 token 添加到 $_GET 时，我返回一个空白数组。 [{},{}]但是如果我 var_dump($shopper_list) 我得到两个不同的用户列表..它应该只有一个，因为一次登录应该等于一个 token :

[{},{}]
array(2) {
  [0]=>
  object(UserShoppingList)#4 (14) {
    ["sign_in_token":protected]=>
    NULL
    ["Shopper":protected]=>
    NULL
    ["ID":protected]=>
    string(1) "4"
    ["SHOPPING_LIST_NAME":protected]=>
    string(18) "kj's shopping list"
    ["SUGGESTION":protected]=>
    string(1) "N"
    ["SEQUENCE":protected]=>
    NULL
    ["ShoppingListItem":protected]=>
    NULL
    ["api_url":protected]=>
    NULL
    ["table":"Base":private]=>
    string(23) "jfw_shopping_list_names"
    ["procedure":"Base":private]=>
    NULL
    ["procedure_args":"Base":private]=>
    NULL
    ["keys":"Base":private]=>
    array(1) {
      ["ID"]=>
      NULL
    }
    ["alias_db_to_php":"Base":private]=>
    array(0) {
    }
    ["alias_php_to_db":"Base":private]=>
    array(0) {
    }
  }
  [1]=>
  object(UserShoppingList)#5 (14) {
    ["sign_in_token":protected]=>
    NULL
    ["Shopper":protected]=>
    NULL
    ["ID":protected]=>
    string(1) "2"
    ["SHOPPING_LIST_NAME":protected]=>
    string(20) "bonner shopping list"
    ["SUGGESTION":protected]=>
    string(1) "N"
    ["SEQUENCE":protected]=>
    NULL
    ["ShoppingListItem":protected]=>
    NULL
    ["api_url":protected]=>
    NULL
    ["table":"Base":private]=>
    string(23) "jfw_shopping_list_names"
    ["procedure":"Base":private]=>
    NULL
    ["procedure_args":"Base":private]=>
    NULL
    ["keys":"Base":private]=>
    array(1) {
      ["ID"]=>
      NULL
    }
    ["alias_db_to_php":"Base":private]=>
    array(0) {
    }
    ["alias_php_to_db":"Base":private]=>
    array(0) {
    }
  }
}

我的 php 页面 (get_shopping_lists.php) 如下所示:

/*
    This script is used to return a JSON array of ShoppingList objects.
    Those objects can be limited to either only "suggested" ShoppingList names,
    or to all of the lists for a single Shopper.  So, either the shopper_id or
    the boolean "suggested_only" should be set.
*/
if(!isset($_GET['token']) && !isset($_GET['suggested_only'])) {
    die('Must pass-in either a \'token\' or \'suggested_only\' flag');
}

if(isset($_GET['token'])) {
    $shopper = new Shopper($_GET['token'])
    or die('Could not instantiate a new Shopper from the \'token\' passed-in');

    $shopper_lists = $shopper->get_lists(true);
    echo json_encode($shopper_lists);
}

if(isset($_GET['suggested_only']) && $_GET['suggested_only'] == 'true') {

}

我希望返回一个购物列表对象数组，或者是一个购物者(您将 token 传递给 Shopper 类的“get_lists”函数)，或者是具有“建议的列表”的列表” flag = 'Y' 如果您要传递另一个参数以表示您只需要建议的列表。这些选项中的每一个都会以不同的方式调用框架中的各个部分。

购物者类别:

// Most objects in this framework are populated by calling the constructor, but
// this one has a variety of entry points. They don't do any sanity checking
// with eachother, so you can have $user->create and $user->register refer to
// completely different rows.
class Shopper extends Base {

    protected $shopper_id;
    protected $email;
    protected $user_name;
    protected $temp_token;
    protected $sign_in_token;

    protected $UserShoppingList;

    function __construct($email = null) {
        // For testing use only. Declined to wrap in this_is_dev because I
        // foresee using it somewhere in the code, pushing live, and being 
//        parent::__construct('jfw_shoppers', array('SHOPPER_ID' => $shopper_id));

        // Allow them to pass an e-mail address or the token
        if (strpos($email, '@') === false) {
            $this->sign_in_token = $email;
        } else {
            $this->email = $email;
        }
    }

    // todo: need a new function to do the actual activation.
    public function activate($temp_token) {
        global $db;

        $this->set_temp_token($temp_token);

        $vars = array();
        $vars[] = array(':i_temp_token', $this->get_temp_token());

        // Returns a Y or N
        return $db->get_function_as_proc('custom.japi_shopper_identity.Activate_User(:i_temp_token)', $vars) == 'Y';
    }

    public function create($password) {
        global $db;

        if (!$this->get_email() || !$this->get_username()) {
            return false;
        }

        $vars = array();
        $vars[] = array(':email', $this->get_email());
        $vars[] = array(':username', $this->get_username());
        $vars[] = array(':password', $password);

        $id = $db->get_function_as_proc('custom.japi_shopper_identity.create_user(:email, :username,  :password)', $vars);
        $this->set_id($id);

        // If it failed, it'll puke on the procedure. If we've come this far, we
        // know it worked.
        return true;
    }

    public function get_email() {
        return $this->email;
    }

    private function get_id() {
        if (isset($this->shopper_id)) {
            return $this->shopper_id;

        // If this object has an e-mail address or the user sent one
        } else if ($this->get_email())  {
            global $db;

            $vars = array();
            $vars[] = array(':i_email_id', $this->get_email());

            // FUNCTION get_id_by_email(i_email_id IN jfw_shoppers.email%TYPE)
            $id = array_pop(array_pop($db->get_function('custom.japi_shopper_identity.get_id_by_email(:i_email_id)', $vars)));

            $this->set_id($id);
            $this->shopper_id = $id;
            return $this->shopper_id;

        // Can also get from token
        } else if ($this->get_sign_in_token())  {
            // todo: call get_id_by_token
            return false;
        }
    }


    // todo: test
    public function get_lists($clobber = false) {
        global $pd;
//        $pd->print_object($this, 'User - has token?');
//        $pd->print_object($this->get_sign_in_token(), 'Token');

        if ($this->UserShoppingList != null && !$clobber) {
            return $this->UserShoppingList;

        } else if ($this->get_sign_in_token()) {
            global $db;
            $pd->print_object($this, 'User - has token?');
            $pd->print_object(strtolower($this->get_sign_in_token()), 'token?');

            $vars = array();
            $vars[] = array(':i_sign_in_token', strtolower($this->get_sign_in_token()));

            $pd->print_object($this->get_sign_in_token(), 'About to seek lists using token');
            $rows = $db->get_function('custom.japi_shopper_identity.get_lists_for_shopper(:i_sign_in_token)', $vars);
            $pd->print_object($rows, 'Rows returned by get_lists using token '.$this->get_sign_in_token());

            // Turn the rows into objects
            $this->UserShoppingList = array_to_objects($rows, 'UserShoppingList');

            return $this->UserShoppingList;
        } else {
            return false;
        }
    }

    public function get_sign_in_token() {
        if ($this->sign_in_token != null) {
            return $this->sign_in_token;
        } else {
            return false;
        }
    }

    public function get_temp_token() {
        if ($this->temp_token != null) {
            return $this->temp_token;
        } else {
            return false;
        }
    }

    public function get_username() {
        return $this->user_name;
    }

    public function json($obj = null, $return_json = false) {
        if ($obj == null) {
            $obj = $this;
        }
        return parent::json($obj, $return_json);
    }

    // Most objects in this framework are populated by calling the constructor,
    // but the only way to populate this one is to call this function with good 
    // credentials.
    public function login($password) {
        global $db;

        if (!$this->get_email()) {
            return false;
        }

        // Log them in now that we know who they are. 
        $vars = array();
        $vars[] = array(':i_email_id', $this->get_email());
        $vars[] = array(':i_password', $password);

        // This also exists, but is not yet in use:
        // $token = $db->get_function_as_proc('custom.japi_shopper_identity.login_by_username(:i_username, :i_password)', $vars);
        $token = $db->get_function_as_proc('custom.japi_shopper_identity.Login_by_Email(:i_email_id, :i_password)', $vars);
        // todo: what if it's bad credentials?

        if ($token == null) {
            return false;

        } else {
            $this->set_sign_in_token($token);
            return $this->get_sign_in_token();
        }
    }

    public function password_reset($tmp_token, $password) {
        global $db;

        if (strlen($password) < 8) {
            return false;
        }

        $vars = array();
        $vars[] = array(':temp_token', $tmp_token);
        $vars[] = array(':new_password', $password);

        return $db->get_function_as_proc('custom.japi_shopper_identity.password_reset(:temp_token, :new_password)', $vars) == 'Y';
    }

    public function request_activation() {
        global $db;

        $vars = array();
        $vars[] = array(':i_shopper_id', $this->get_id());

        // Returns a temp token
        $temp_token = $db->get_function_as_proc('custom.japi_shopper_identity.activate_user_request(:i_shopper_id)', $vars);

        if ($temp_token == null) {
            return false;
        } else {
            $this->send_activation_email();
            return $temp_token;
        }
    }

    public function request_password_reset() {
        global $db, $pd;

        if (!$this->get_id()) {
            return false;
        }

        $vars = array();
        $vars[] = array(':shopper_id', $this->get_id());

        $temp_token = $db->get_function_as_proc('custom.japi_shopper_identity.password_reset_request(:shopper_id)', $vars);
        if ($temp_token == null) {
            return false;
        } else {
            $this->set_temp_token($temp_token);
            $pd->print_object('About to send the e-mail');
            $this->send_password_email();
            $pd->print_object('Sent the email');
            return $this->get_temp_token();
        }
    }


    private function send_activation_email() {
        if (!$this->get_email() || !$this->get_temp_token())  {
            return false;
        }


        $fancy = '
<div style="text-align: center;"><img src="logo.jpg" /></div>
<h2>Welcome to com!</h2>
<p>To complete your registration, <a href="todo: ">click here</a> or copy and paste the URL into your browser:</p>

URL?token='.$this->get_temp_token().'

Thanks!
';

        $plain = 'Welcome to com!

To complete your registration, please activate your account by going to the URL below:

URL?token='.$this->get_temp_token().'

Thanks!
';

        // todo: subject could probably be better
        return email_customer($this->get_email(), 'Welcome to com!', $fancy, $plain);
    }


    private function send_password_email() {
        global $pd;
        $pd->print_object('In send_password_email');
        $pd->print_object($this->get_email(), 'E-mail');
        $pd->print_object($this->get_temp_token(), 'Token');

        if (!$this->get_email() || !$this->get_temp_token())  {
            return false;
        }

        $pd->print_object($this->get_email(), 'Have all the data I need');


        $fancy = '
<div style="text-align: center;"><img src="logo.jpg" /></div>
<h2>Welcome to com!</h2>
<p>To reset your password, <a href="todo: ">click here</a> or copy and paste the URL into your browser:</p>

<p>URL?token='.$this->get_temp_token().'</p>

<p>Thanks!</p>
';
        $plain = 'Welcome to com!

To reset your password by going to the URL below:

URL?token='.$this->get_temp_token().'

Thanks!
';
        $pd->print_object('About to actually e-mail');


        return email_customer($this->get_email(), "Reset your com password", $fancy, $plain);
    }

    public function set_email($email) {
        return $this->email = $email;
    }

    public function set_id($email) {
        return $this->shopper_id;
    }

    public function set_sign_in_token($token) {
        return $this->sign_in_token = $token;
    }

    public function set_temp_token($token) {
        return $this->temp_token = $token;
    }

    public function set_username($username) {
        return $this->user_name = $username;
    }
}

我对如何引用购物者列表以及如果他们没有列表而不是选择建议的列表感到有点困惑。

我的 (oracle11g) 数据库中有一些测试列表:

     ID SHOPPING_LIST_NAME                                 S SEQUENCE
------- -------------------------------------------------- - --------
      3 793d7384fa4fa247d6fae07db104147d0a2dad6e           N
      1 test amnaik shopping list                          N
      4 kj's shopping list                                 N
      5 kj's shopping list from 1384201636                 N
      6 kj's shopping list from 1384201659                 N
      7 kj's shopping list from 1384202055                 N
      8 kj's shopping list from 1384202089                 N
      2 bonner shopping list                               N

8 rows selected.



SHOPPING_LIST_ID SHOPPER_ID ITM_CD    QUANTITY CHANGE_DA CHANGE_US A O
---------------- ---------- --------- -------- --------- --------- - -
               1          2 ABI85MT06        4 28-OCT-13 CUSTOM    N N
               1          1 STZ28AC1         3 11-NOV-13 CUSTOM    Y N
               1          1 ABI85MT06        3 11-NOV-13 CUSTOM    Y N
               1          1 XYZ              1                     Y N
               2          1 XYZ              1                     Y N
               4         67 MND44SA01        1                     Y N
               4         67 MND44SA02        1                     Y N
               2         67 MND44SA02        1                     Y N
               1          1 ABCDEF           1                     Y N

9 rows selected.

像往常一样，我们将不胜感激任何帮助或建议。谢谢。

Answer 1

基于那个 Shopper 类，您更新的 get_lists 函数正在调用一个 db 方法:

$rows = $db->get_function('custom.japi_shopper_identity.get_lists_for_shopper(:i_sign_in_token)', $vars);

此方法返回一个数组，我必须假设它是来自 oracle 数据库的查询结果。在将其转换为一组对象并将其返回到 get_shopping_lists.php 后，您需要检查以确保此值不为 false，因为这是 get_lists() 方法调用中的最终 else 条件。如果是，则输出某种类型的错误消息(如果这是您的消费者所期望的，则可能是 JSON 格式)。

至于你想添加的新东西

• 如果他们没有，则自动创建一个列表
• 获取建议列表

对于第一个，在获取行之后，您将检查以确保 $rows 不为空，然后调用一个方法来创建列表(大概也是某种类型的 customer.japi_shopper... oracle 上的函数边。

对于第二个，您将使用 if/else 分支逻辑(如果 $suggested == true，获取这些结果；否则，执行您已经在执行的操作...)