Issue
I am working on a webpage where I do a query in the Python flask app. Following is the query I ran:
cur.execute("SELECT sum(quantity) FROM pydb.products GROUP BY category")
I want to access these data one by one to assign them to the following Quantity Part of the HTML code:
<ul id="autoWidth" class="cs-hidden">
<li class="item-a">
<div class="box">
<div class="slide-img">
<img src="static/images/1.webp" alt="1" />
<div class="overlay">
<a href="/details/camera" class="details-btn">View Details</a>
</div>
</div>
<div class="detail-box">
<div class="type">
<a href="#">Camera & Camcorders</a>
<span> </span>
</div>
<a href="#" class="quantity"> </a>
</div>
</div>
</li>
<li class="item-b">
<div class="box">
<div class="slide-img">
<img src="static/images/2.jfif" alt="2" />
<div class="overlay">
<a href="/details/laptop" class="details-btn">View Details</a>
</div>
</div>
<div class="detail-box">
<div class="type">
<a href="#">Laptops</a>
<span> </span>
</div>
<a href="#" class="quantity"> </a>
</div>
</div>
</li>
</ul>
Solution
As you may see in many tutorials:
Get data from database
all_rows = cur.fetch()
Send data to template
render_tempalte("file.html", data=all_rows)
And inside HTML you may use for
-loops to display it (I skip tags).
{% for row in data %}
{% for item in row %}
{{ item }}
{% endfor %}
{% endfor %}
But you may also access item usings indexes [row][column]
{{ data[0][0] }}
{{ data[1][0] }}
Or you may modify data before sending to template
render_tempalte("file.html", laptops=all_rows[0][0], others=all_rows[1][0])
and later
{{ laptops }}
{{ others }}
Answered By - furas
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