Question

我只想使用django模板标签根据数据库中可用的值在安培页面上显示星级。我的评级是浮点型，该代码也可以用于非amp页面，该怎么办？

<script async custom-element="amp-form" src="https://cdn.ampproject.org/v0/amp-form-0.1.js"></script>



<style amp-custom>
  .rating {
    --star-size: 3;  /* use CSS variables to calculate dependent dimensions later */
    padding: 0;  /* to prevent flicker when mousing over padding */
    border: none;  /* to prevent flicker when mousing over border */
    unicode-bidi: bidi-override; direction: rtl;  /* for CSS-only style change on hover */
    text-align: left;  /* revert the RTL direction */
    user-select: none;  /* disable mouse/touch selection */
    font-size: 3em;  /* fallback - IE doesn't support CSS variables */
    font-size: calc(var(--star-size) * 1em);  /* because `var(--star-size)em` would be too good to be true */
    cursor: pointer;
    /* disable touch feedback on cursor: pointer - http://stackoverflow.com/q/25704650/1269037 */
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
    margin-bottom: 1em;
  }
  /* the stars */
  .rating > label {
    display: inline-block;
    position: relative;
    width: 1.1em;  /* magic number to overlap the radio buttons on top of the stars */
    width: calc(var(--star-size) / 3 * 1.1em);
  }
  .rating > *:hover,
  .rating > *:hover ~ label,
  .rating:not(:hover) > input:checked ~ label {
    color: transparent;  /* reveal the contour/white star from the HTML markup */
    cursor: inherit;  /* avoid a cursor transition from arrow/pointer to text selection */
  }
  .rating > *:hover:before,
  .rating > *:hover ~ label:before,
  .rating:not(:hover) > input:checked ~ label:before {
    content: "★";
    position: absolute;
    left: 0;
    color: gold;
  }
  .rating > input {
    position: relative;
    transform: scale(3);  /* make the radio buttons big; they don't inherit font-size */
    transform: scale(var(--star-size));
    /* the magic numbers below correlate with the font-size */
    top: -0.5em;  /* margin-top doesn't work */
    top: calc(var(--star-size) / 6 * -1em);
    margin-left: -2.5em;  /* overlap the radio buttons exactly under the stars */
    margin-left: calc(var(--star-size) / 6 * -5em);
    z-index: 2;  /* bring the button above the stars so it captures touches/clicks */
    opacity: 0;  /* comment to see where the radio buttons are */
    font-size: initial; /* reset to default */
  }
  form.amp-form-submit-error [submit-error] {
    color: red;
  }
</style>

该网页由几种产品组成，这些产品的星级需要显示在卡的div中。

Answer 1

您不需要仅使用上面的代码来显示星级，就可以接受星级。由于amp页面不支持js，因此可以在css的帮助下完成。您需要做的是放置一个空白的星级图像，然后将其与大小完全相同的填充图像重叠，然后使用带有django模板标签的剪辑按原样显示它。

<img style="position: absolute;clip: rect(0px,{{i.rating}}px,0px,0px);top: 0px;left: 0px" src="https://filled-up-star.png"/>

如何在带有Django模板标签的amp CSS中使用星级评定？

1 个答案: