不能使用 Flask 从 HTML 获得复选框的值

Question

I'm facing a problem while trying to use a check box defined in my HTML code ! The check box is used to select RegEx search !

Here a screenshot of the Layout:

This is the HTML code:

<div class="filter_1">
    Filter :
</div>


<div class="RegEx_1">
    <input type="checkbox"  name="check">
    <label for="RegEx_1"> RegEx</label>
</div>

<form class ="search_1" name="search" action="/search" method="GET">
    <input type="text" placeholder="Search.." name="search_11">
    <input class="btn_1" type="submit" value="Submit">
</form>

The python code (route to call):

@app.route('/search', methods =["GET", "POST"])
def search():
results1=[]
res=""
q = request.args.get('search_11')
regex_check = request.form.get('check')

if regex_check : 
    res = "the box is checked"

elif q != "" :
    for i in kitt_list:
        if q in i :
            results1.append(i)
    for j in range(len(results1)):
        res = res + "\n" + results1[j]

return render_template('search.html', res=res, q=q)

Here are also the "search.html":

<div class="title_1">
    Search results in <U>Kitt debug UART</U> for : " <mark>{{ q }}</mark> " 
</div>

<div id="searchterm" class="search_results">
    {{ res }}
</div>

The checkbox is always marked as unchecked ! Please provide me with any possible solutions !

Thanks!

Answer 1

Missed a key thing from your POST. Your checkbox is outside of the form!

Submitting the form will always submit a value for checkbox.

When it is checked, the value will be 'on' . When it is unchecked, it will be an empty string ie ""