walker-database/templates/search.html

{% extends "base.html" %}
{% block content %}
    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.14/dist/vue.min.js"></script>
    <script type="module">
        //import { createApp } from 'https://unpkg.com/petite-vue?module'
        //import { createApp } from 'https://unpkg.com/vue@2.7.14/dist/vue.esm-browser.prod.js'

        function valid(str) {
            return !isNaN(str) && !isNaN(parseFloat(str))
        }

        function debounce(func, timeout = 300){
          let timer;
          return (...args) => {
            clearTimeout(timer);
            timer = setTimeout(() => { func.apply(this, args); }, timeout);
          };
        }


        const app = new Vue({
            el: "#search",
            data() {
                return {
                    mz_min: 0,
                    mz_max: 0,
                    rt_min: 0,
                    rt_max: 0,
                    results: [],
                    error: null,
                }
            },
            methods: {
                // methods
                async fetch_data() {
                    if (!(valid(this.mz_min) && valid(this.mz_max) && valid(this.rt_max) && valid(this.rt_min))) {
                        return
                    }
                    const url = `/chemical/search?mz_min=${this.mz_min}&mz_max=${this.mz_max}&rt_min=${this.rt_min}&rt_max=${this.rt_max}`
                    fetch(url).then(res => {
                        if (res.status !== 200) {
                            console.log(`Error Status, ${res.status}`)
                        }
                        return res.json()
                    }).then(json => {
                        this.results = json;
                        this.error = null;
                    }).catch(e => {
                        console.error(e);
                        this.error = true;
                    })
                },
                //debounced_fetch: debounce(this.fetch_data.bind(this), 300)
            },
            created() {
                this.fetch_data = debounce(this.fetch_data, 300)
            }

        });
    </script>

    <h1>Search Box</h1>
    <div id="search">
    <main>
        <table>
            <tr>
                <td>
                    <label for="mz_min">Minimum M/Z Ratio</label>
                </td>
                <td>
                    <input id="mz_min" type="number" name="mz_min" v-model="mz_min" @input="fetch_data()" value="0">
                </td>
            </tr>
            <tr>
                <td>
                    <label for="mz_min">Maximum M/Z Ratio</label>
                </td>
                <td>
                    <input id="mz_max" type="number" name="mz_max" v-model="mz_max" @input="fetch_data()" value="0">
                </td>
            </tr>
            <tr>
                <td>
                    <label for="mz_min">Minimum Retention Time</label>
                </td>
                <td>
                    <input id="rt_min" type="number" name="rt_min" v-model="rt_min" @input="fetch_data()" value="0">
                </td>
            </tr>
            <tr>
                <td>
                    <label for="mz_min">Maximum Retention Time</label>
                </td>
                <td>
                    <input id="rt_max" type="number" name="rt_max" v-model="rt_max" @input="fetch_data()" value="0">
                </td>
            </tr>
        </table>

        <!--
        <br>
        <button @click="fetch_data()">Search</button>
        -->
    </main>
    <hr>
    {% raw %}
    <div id="search">
        <div v-if="error" style="color: red;">
            Uh Oh! There is an Error!
        </div>
        <div v-for="result in results">
            <a :href="result.url">
                <h3>{{result.name}}</h3>
            </a>
            <table>
                <tr>
                    <td>Retention Time</td>
                    <td>{{result.rt}}</td>
                </tr>
                <tr>
                    <td>M/Z Ratio</td>
                    <td>{{result.mz}}</td>
                </tr>
            </table>
            <hr>
        </div>
    </div>
    {% endraw %}
    </div>

{% endblock %}