javascript - 如何根据单元格值插入 javascript 以更改 Flask WTF jinja2 表格数据单元格中的单元格 CSS 类?
问题描述
我正在使用 Flask WTF 来显示数据库查询的结果,但是如果值小于 25,我想将单元格背景的颜色更改为浅红色。我不确定如何以及在何处插入要测试的 javascript单元格值并更改该数据单元格的 CSS 类。目前我可以将整列数据更改为引导类“bg-danger”,但不能更改一个单元格。
这是python代码的简化版本:
import os
import logging
from flask import Flask, render_template
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from flask_table import Table, Col
app = Flask(__name__)
bootstrap = Bootstrap(app)
moment = Moment(app)
class damLevel(object):
def __init__(self, Dam, PercentFull):
self.Dam = Dam
self.PercentFull = PercentFull
class damTable(Table):
classes = ['table', 'table-bordered', 'table-striped']
Dam = Col('Dam')
PercentFull = Col(name='PercentFull',attr='PercentFull', td_html_attrs={'class':'bg-danger'})
@app.route('/', methods=['GET'])
def index():
damData = [damLevel('Boulder', '85'),
damLevel('FishPond', '7')]
damForm=damTable(damData)
return render_template('damlevels.html', damForm=damForm)
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0', port=int(os.environ.get('PORT', 8080)))
这是 HTML 模板:
{% extends "base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block title %}DamLevels{% endblock %}
{% block page_content %}
<div class="page-header">
<h1>Dam Levels</h1>
</div>
<div class="container" >
<form action="" method="get" class="form" role="form">
<div class="row" style="width:32em">
{{ damForm }}
</div>
<div class="row">
<a href="/">Return</a>
</div>
</form>
</div>
{% endblock %}
解决方案
我设法通过在 Jinja2 中进行迭代来使其工作,如下所示:
import os
import logging
from flask import Flask, render_template
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from flask_table import Table, Col
from flask_wtf import FlaskForm
app = Flask(__name__)
bootstrap = Bootstrap(app)
moment = Moment(app)
app.config['SECRET_KEY'] = 'NobodyCanGuessThisKey'
class damLevel(object):
def __init__(self, Dam, PercentFull):
self.Dam = Dam
self.PercentFull = PercentFull
class damTable(Table):
classes = ['table', 'table-bordered', 'table-striped']
Dam = Col('Dam')
PercentFull = Col('PercentFull')
@app.route('/', methods=['GET'])
def index():
damData = [damLevel('Boulder', '85'),
damLevel('FishPond', '7')]
damForm=damTable(damData)
print ("damForm type :",type(damData))
return render_template('damlevels.html', form=damData)
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0', port=int(os.environ.get('PORT', 8080)))
HTML 模板:
{% extends "base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block title %}DamLevels{% endblock %}
{% block page_content %}
<table id="data" class="table table-striped" style="width:16em">
<thead>
<tr>
<th>Dam</th>
<th class="text-right">PercentFull</th>
</tr>
</thead>
<tbody>
{% for damItem in form %}
<tr>
<td>{{ damItem.Dam }}</td>
<td>
{% set number = damItem.PercentFull | float %}
{% if number < 25.0 -%}
<p class="bg-danger text-right">{{ damItem.PercentFull }}</p>
{% else -%}
<p class="text-right">{{ damItem.PercentFull }}</p>
{% endif %}
</td>
</tr>
{% endfor %}
</tbody>
</table>
{% endblock %}
推荐阅读
- authentication - Google OAuth 2 授权不可靠(redirect_uri_mismatch)
- python - 如何对具有多索引的熊猫系列进行位置索引
- python - 如何将数据发布到 php 并打印该数据?
- python - 当我运行我的不和谐机器人时出现错误(RuntimeError:事件循环已关闭)
- google-colaboratory - 无法清除 Google colab 磁盘空间
- java - 如何复制列表中的相同项目、更改属性值并将其添加到新列表中?
- javascript - 将 24 小时时间转换为旋转值
- reactjs - 基于产品 ID 的 React fetch API
- report - SQLWatch 报告“不包含数据”
- python - 主函数界面异常处理