Question

我在phalcon伏特中有计数问题。我有一个名为category的表，我有两列id和cname，还有一个表博客，还有一列category。我想表明每个类别中有多少帖子当我在博客表中插入帖子时，在类别列I中插入其类别id。我首先检索所有类别的列表，如下所示：

[controller]
$categories = Category::find();
$this->view->setVar('category', $categories);
$cx = Blogs::find();
$this->view->setVar('cates',$cx);

[Volt]
{% for categories in category %}
<a href="blog/category/{{categories.cname}}" class="tags">{{ categories.cname }} 
<span>[ 
{% for cx in cates %}
    {%if cx.category === categories.id %}
        <?php echo(count($cx->category)); ?>
    {% endif %}
{% endfor %}
]</span></a>
{% endfor %}

它的渲染类似于＆＃34; 1 1 1＆＃34;或＆＃34; 1 1＆＃34;或＆＃34; 1＆＃34;但它应该呈现像＆＃34; 3＆＃34;或＆＃34; 2＆＃34;或＆＃34; 1＆＃34;我的错了什么？

我也尝试了这样但没有得到预期的输出：

{% for categories in category %}
<a href="blog/category/{{categories.cname}}" class="tags">{{ categories.cname }} 
<span>[ 
{% for cx in cates %}

{%if cx.category === categories.id %}
{% if loop.first %} {{ loop.length }} {% endif %}

{% endif %}

{% endfor %}
]</span></a>
{% endfor %}

Answer 1

您是否在Phalcon中定义了模型之间的关系？如果是这样，您可以使用内置命令查询每个类别的帖子总数

文档中的示例：

您还可以使用“count”前缀返回表示相关记录计数的整数：

$robot = Robots::findFirst(2);
echo "The robot has ", $robot->countRobotsParts(), " parts\n";

我对Volt模板没有多少经验，但我猜它会是这样的：

{% for categories in category %}
<a href="blog/category/{{categories.cname}}" class="tags">{{ categories.cname }} 
<span>[ 
  {{ categories.countBlogs }}
]</span></a>
{% endfor %}

请参阅：https://docs.phalconphp.com/en/latest/reference/models.html#taking-advantage-of-relationships

更新 - 模型关系

[型号：类别]

public function initialize()
{
    // id => primary key name of the Category table
    // Blogs => name of the table you want to create a relationship with
    // category => name of the foreign key column in your relationship table
    $this->hasMany('id', 'Blogs', 'category');
}

[model：Blogs]

public function initialize()
{
    // category => blog column name which refers to the ID in the Category table
    // Category => name of the Category table
    // id => name of the primary key column in the Category table
    $this->belongsTo('category', 'Category', 'id');
}

Answer 2

不，先生，它不起作用。但我刚刚解决了我的问题：

[controller]
$categories = Category::find();
$this->view->setVar('category', $categories);

[volt]

{% for categories in category %}
<a href="blog/category/{{categories.cname}}" class="tags">{{ categories.cname }} 
<span>[ 
<?php 
$catcount = $this->modelsManager->executeQuery("SELECT Blogs.category FROM Blogs WHERE Blogs.category = $categories->id");echo(count($catcount));
?>
]</span></a>
{% endfor %}

现在按预期工作。在这里，我不做任何关系离子模型。是的，先生。请！日Thnx

Phalcon以伏特计数

2 个答案: