Django3.2 | 22 | QRオーダーシステムの構築 | カテゴリー登録

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カテゴリー登録できるように実装していきます。


「qrmenu_react/src/apis.js」ファイルに記述を追加します。


記述追加　【QRMenu/qrmenu_react/src/apis.js】87行目

import { toast } from 'react-toastify';

function request(path,  {data = null, token = null, method = "GET" }) {
  return fetch(path, {
    method,
    headers: {
      Authorization: token ? `Token ${token}` : "",
      "Content-Type": "application/json",
    },
    body: method !=="GET" && method !== "DELETE" ? JSON.stringify(data): null,
  })
    .then((response) => {

      //もし成功したら
      if (response.ok) {
        if(method === "DELETE") {
          return true;
        }
        //toast.success("ログイン成功");
        return response.json();
      }
      //失敗
      return response.json().then((json) => {
          //JSONエラー
          if (response.status === 400) {
            //toast.error("氏名もしくはパスワードに間違いがあります。");
            const errors = Object.keys(json).map(
                (k) => `${(json[k].join(" "))}`
            );
            throw new Error(errors.join(" "));
          }
          throw new Error(JSON.stringify(json));
        })
        .catch((e) => {
          if (e.name === "SyntaxError") {
            throw new Error(response.statusText);
          }
          throw new Error(e);
        })
    })

    .catch((e) => {
      //全エラー
      toast(e.message, { type: "error" });
    })
}

export function signIn(username, password) {
  return request("/auth/token/login/", {
    data: {username, password},
    method: "POST",
  })
}

export function register(username, password) {
  return request("/auth/users/", {
    data: {username, password},
    method: "POST",
  })
}

export function fetchPlaces(token) {
  return request("/api/places/", {token});
}

export function addPlace(data, token) {
  return request("/api/places/", {data, token, method: "POST" });
}

export function uploadImage(image) {
  const formData = new FormData();
  formData.append("file", image);
  formData.append("upload_preset", "qrmenu_photos");

  return fetch("https://api.cloudinary.com/v1_1/dov57gocw/image/upload", {
    method: "POST",
    body: formData,
  }).then((response) => {
    return response.json();
  });
}

export function fetchPlace(id, token) {
  return request(`/api/places/${id}`, { token });
}

export function addCategory(data, token) {
  return request("/api/categories/", {data, token, method: "POST"});
}

「qrmenu_react/src/containers」フォルダーに「MenuItemForm.js」ファイルを新規作成します。
新規作成した「MenuItemForm.js」ファイルを以下のように編集します。


新規作成　【QRMenu/qrmenu_react/src/containers/MenuItemForm.js】

import React, { useState, useContext, useRef } from 'react';
import { Button, Form, Popover, Overlay } from 'react-bootstrap';
import { RiPlayListAddFill } from 'react-icons/ri';
import { toast } from 'react-toastify';

import { addCategory } from '../apis';
import AuthContext from '../contexts/AuthContext';

const MenuItemForm = ({ place, onDone }) => {
    const [categoryName, setCategoryName] = useState("");
    const [categoryFormShow, setCategoryFormShow] = useState(false);
    const [category, setCategory] = useState("");

    const target = useRef(null);

    const auth = useContext(AuthContext);

    const onAddCategory = async () => {
        const json = await addCategory({name:categoryName, place:place.id}, auth.token);
        console.log(json);
        
        if(json) {
            toast(`カテゴリー： ${json.name} が作成されました。`, { type: "success"});
            setCategory(json.id);
            setCategoryName("");
            setCategoryFormShow(false);
            onDone();
        }
    };

    return (
        <div>
            <Form.Group>
                <Form.Label>カテゴリー</Form.Label>
                <div className="d-flex align-items-center">

                    <Form.Control as="select" value={category} onChange={(e) => setCategory(e.target.value)}>
                        <option />
                        {place?.categories?.map((c) => (
                            <option key={c.id} value={c.id}>
                                {c.name}
                            </option>
                        ))}
                    </Form.Control>
                    <Button ref={target} variant="link" onClick={() => setCategoryFormShow(true)}>
                        <RiPlayListAddFill size={25} />
                    </Button>

                    <Overlay
                        show={categoryFormShow} 
                        target={target.current} 
                        placement="bottom" 
                        rootClose 
                        onHide={() => setCategoryFormShow(false)}
                     >
                        <Popover id="popover-contained">
                            <Popover.Title as="h3">カテゴリー</Popover.Title>
                            <Popover.Content>
                                <Form.Group>
                                    <Form.Control
                                        type="text"
                                        placeholder="カテゴリー名を入力"
                                        value={categoryName}
                                        onChange={(e) => setCategoryName(e.target.value)}
                                    />
                                </Form.Group>
                                <Button variant="standard" block onClick={onAddCategory}>
                                    カテゴリー登録
                                </Button>
                            </Popover.Content>
                        </Popover>
                    </Overlay>
                </div>
            </Form.Group>
        </div>
    );
}

export default MenuItemForm;

「src/pages/Place.js」ファイルを編集します。


記述編集　【QRMenu/qrmenu_react/src/pages/Place.js】

import { IoMdArrowBack } from 'react-icons/io';
import { Row, Col, Button } from 'react-bootstrap';
import { useParams, useHistory } from 'react-router-dom';
import React, { useEffect, useState, useContext } from 'react';
import styled from 'styled-components';

import { fetchPlace } from '../apis';
import AuthContext from '../contexts/AuthContext';
import MainLayout from '../layouts/MainLayout';
import MenuItemForm from '../containers/MenuItemForm';

const Panel = styled.div`
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 1px 1px 10px rgba(0,0,0,0.05);
`;


const Place = () => {
    const [place, setPlace] = useState({});

    const auth = useContext(AuthContext);
    const params = useParams();
    const history = useHistory();

    const onBack = () => history.push("/places");

    const onFetchPlace = async () => {
        const json = await fetchPlace(params.id, auth.token);
        if(json) {
            setPlace(json);
        }
    };

    useEffect(() => {
        onFetchPlace();
    }, []);

    return (
        <MainLayout>
            <Row>
                <Col lg={12}>
                    <div className="mb-4">
                        <div className="d-flex align-items-center" Style="margin-left: 2rem; margin-top: 2rem;">
                            <Button variant="link" onClick={onBack}>
                                <IoMdArrowBack size={25} color="black" />
                            </Button>
                            <h3 className="mb-0 ml-2 mr-2">{place.name}</h3>
                        </div>
                    </div>
                </Col>
                <Col md={4}>
                    <Panel>
                        <MenuItemForm place={place} onDone={onFetchPlace} />
                    </Panel>
                </Col>
            </Row>
        </MainLayout>
    )
};

export default Place;

「src/pages/Places.js」ファイルに記述を追加します。


記述追加　【Desktop/QRMenu/qrmenu_react/src/pages/Places.js】

import { Row, Col, Modal } from 'react-bootstrap';
import { useHistory } from 'react-router-dom';
import { React, useEffect, useState, useContext } from 'react';
import styled from 'styled-components';

import { fetchPlaces } from '../apis';
import AuthContext from '../contexts/AuthContext';

import MainLayout from '../layouts/MainLayout';
import PlaceForm from '../containers/PlaceForm';

const Place = styled.div`
    margin-bottom: 20px;
    cursor: pointer;
    transition: all 0.2s; 
    :hover {
        transform: scale(1.05);
    }
    > div {
        background-size: cover;
        height: 200px;
        border-radius: 5px;


    }
    > p {
        margin-top: 5px;
        font-size: 20px;
        font-weight: bold;
    }

`;

const AddPlaceButton =  styled.div`
    border: 1px dashed gray;
    height: 200px;
    border-radius: 5px;
    display: flex;
    aligh-items: center;
    justify-content: center;
    padding-top: 5rem;
    font-size: 20px;
    cursor: pointer;
    background-color: white;
    :hover {
        background-color: #fbfbfb;
    }
`;


const Places = () => {
    const [places, setPlaces] = useState([]);
    const [show, setShow] = useState(false); 

    const auth = useContext(AuthContext);
    const history = useHistory();

    const onHide = () => setShow(false);
    const onShow = () => setShow(true);

    const onFetchPlaces = async () => {
        const json = await fetchPlaces(auth.token);
        if (json) {
            setPlaces(json);
        }
    };

    const onDone = () => {
        onFetchPlaces();
        onHide();
    }

    useEffect(() => {
        onFetchPlaces();
    }, []);
   
    return (
        <MainLayout>
            <h3>登録済み飲食店</h3>
            <br/>
            <Modal show={show} onHide={onHide} centerd>

                <Modal.Body>
                    <PlaceForm onDone={onDone} />
                </Modal.Body>

            </Modal>

            <Row>
                { places.map((place) => (
                 
                    <Col key={place.id} lg={4}>
                    <Place onClick={() => history.push(`/places/${place.id}`)}>
                        <div style={{ backgroundImage: `url(${place.image})` }}></div>
                        <p>{place.name}</p>
                    </Place>
                    </Col>
                ))}
                <Col lg={4}>
                    <AddPlaceButton onClick={onShow}>飲食店登録</AddPlaceButton>
                </Col>
            </Row>
        </MainLayout>
    )
}

export default Places;

カテゴリーが登録できるようになりました。

カテゴリー登録

登録成功

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