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AllPosts.js
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AllPosts.js
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import React, { useEffect, useState } from "react";
// API
import { axiosReq } from "../../api/AxiosDefaults";
// Components
import LoadingText from "../../components/LoadingText";
import InfiniteScroll from "react-infinite-scroll-component";
// Bootstrap
import Alert from "react-bootstrap/Alert";
import Form from "react-bootstrap/Form";
import Post from "./Post";
// CSS
import styles from "../../styles/AllPosts.module.css";
// Contexts
import { useCurrentUser } from "../../contexts/CurrentUserContext";
import { useSetCurrentNotification } from "../../contexts/NotificationContext";
// Utils
import { fetchMoreData } from "../../utils/Utils";
// Hooks
import useTitle from "../../hooks/useTitle";
const AllPosts = () => {
// State variables.
const [loaded, setLoaded] = useState(false);
const [posts, setPosts] = useState({});
const [sortBy, setSortBy] = useState("created");
const [sortOrder, setSortOrder] = useState("-");
const [likeCheck, setLikeCheck] = useState(false);
const [imageCheck, setImageCheck] = useState(false);
const [query, setQuery] = useState("");
const currentUser = useCurrentUser();
const setCurrentNotification = useSetCurrentNotification();
useTitle("Diary Entries");
// Fetch post data
useEffect(() => {
const fetchPosts = async () => {
try {
const { data } = await axiosReq.get(
`posts/?ordering=${sortOrder}${sortBy}&likes__owner__profile=${
likeCheck ? currentUser?.profile_id : ""
}&has_image=${imageCheck && "True"}&search=${query}`
);
setPosts(data);
setLoaded(true);
} catch (error) {
setCurrentNotification(
"An error occurred while attempting to load diary entries. Please try again."
);
}
};
setLoaded(false);
const queryTimer = setTimeout(() => {
fetchPosts();
}, 1000);
return () => {
clearTimeout(queryTimer);
};
}, [
sortBy,
sortOrder,
likeCheck,
imageCheck,
currentUser?.profile_id,
setCurrentNotification,
query,
]);
// Handles sorting form changes
const handleSortChange = (event) => {
const { name, value } = event.target;
switch (name) {
case "sort_by":
setSortBy(value);
break;
case "sort_order":
setSortOrder(value);
break;
case "like_check":
setLikeCheck(!likeCheck);
break;
case "image_check":
setImageCheck(!imageCheck);
break;
default:
break;
}
};
// Handles search form change.
const handleChange = (event) => {
setQuery(event.target.value);
setLoaded(false);
};
// Prevents refresh of page when enter is pressed in search field.
const preventSubmit = (event) => {
if (event.keyCode === 13) {
event.preventDefault();
}
};
return (
<>
<h1>Diary Entries</h1>
<hr />
<Form className={styles.SortForm}>
{/* Search field */}
<Form.Group>
<Form.Label htmlFor="search">Search For</Form.Label>
<Form.Control
name="search"
id="search"
value={query}
placeholder="Entry text or owner"
onChange={handleChange}
onKeyDown={preventSubmit}
/>
</Form.Group>
{/* Sort by dropdown */}
<Form.Group>
<Form.Label htmlFor="sort_by">Sort By</Form.Label>
<Form.Control
as="select"
id="sort_by"
name="sort_by"
value={sortBy}
onChange={handleSortChange}
>
<option value="created">Date</option>
<option value="like_count">Like Count</option>
<option value="comment_count">Comment Count</option>
</Form.Control>
</Form.Group>
{/* Sort order dropdown */}
<Form.Group>
<Form.Label htmlFor="sort_order">Sort Order</Form.Label>
<Form.Control
id="sort_order"
as="select"
name="sort_order"
value={sortOrder}
onChange={handleSortChange}
>
<option value="">Ascending</option>
<option value="-">Descending</option>
</Form.Control>
</Form.Group>
</Form>
<Form className={styles.SortForm}>
<strong>Diary Entry Filters:</strong>
{currentUser && (
<Form.Group className={styles.FilterGroup}>
{/* Liked post filter */}
<Form.Label hidden htmlFor="like_check">
Show only entries I liked
</Form.Label>
<Form.Check
id="like_check"
name="like_check"
onChange={handleSortChange}
label="Show only entries I liked"
aria-label="Show only entries I liked"
/>
</Form.Group>
)}
<Form.Group className={styles.FilterGroup}>
{/* Image filter */}
<Form.Label hidden htmlFor="image_check">
Show only entries with an image
</Form.Label>
<Form.Check
id="image_check"
name="image_check"
onChange={handleSortChange}
label="Show only entries with an image"
aria-label="Show only entries with an image"
/>
</Form.Group>
</Form>
{loaded ? (
<>
{posts.results.length ? (
<InfiniteScroll
dataLength={posts.results.length}
loader={<LoadingText />}
hasMore={!!posts.next}
next={() => fetchMoreData(posts, setPosts)}
>
{posts.results.map((post, index) => (
<Post key={index} {...post} setPosts={setPosts} />
))}
</InfiniteScroll>
) : (
<Alert variant="dark">There are no diary entries yet!</Alert>
)}
</>
) : (
<LoadingText />
)}
</>
);
};
export default AllPosts;