How to transfer post from one component to another? - vue.js

Question

Good afternoon, please tell me. I am training now using Vuex and I cannot transfer the post from one component to another. I have a component Pagination, where all the posts and the history component are stored where and should send the first 5 posts that I click on to visit them. That is, it should work approximately as a history of viewing posts. I wrote some code here, but my posts are not displayed, tell me what I'm doing wrong and how to fix it.
Component code where all posts are stored:
<template>
<div class = "app">
<ul>
<li v-for="(post, index) in paginatedData" class="post" :key="index">
<router-link :to="{ name: 'detail', params: {id: post.id, title: post.title, body: post.body} }" #click="addPostToHistoryComp(post.id, post.title, post.body)">
<img src="src/assets/nature.jpg">
<p class="boldText"> {{ post.title }}</p>
</router-link>
<p> {{ post.body }}</p>
</li>
</ul>
<div class="allpagination">
<button type="button" #click="page -=1" v-if="page > 0" class="prev"><<</button>
<div class="pagin">
<button class="item"
v-for="n in evenPosts"
:key="n.id"
v-bind:class="{'selected': current === n.id}"
#click="page=n-1">{{ n }} </button>
</div>
<button type="button" #click="page +=1" class="next" v-if="page < evenPosts-1">>></button>
</div>
</div>
</template>
<script>
import {mapState} from 'vuex'
export default {
name: 'app',
data () {
return {
current: null,
page: 0,
visiblePostID: '',
}
},
mounted(){
this.$store.dispatch('loadPosts')
},
computed: {
posts(){
return this.$store.state.posts
},
search(){
return this.$store.state.sSearch
},
evenPosts: function(posts){
return Math.ceil(this.posts.length/6);
},
paginatedData() {
const start = this.page * 6;
const end = start + 6;
return this.filteredPosts.slice(start, end);
},
filteredPosts() {
return this.posts.filter((post) => {
return post.title.match(this.search);
});
},
},
methods: {
addPostToHistoryComp(val){
this.$store.dispatch('transforPostToHistoryComp', { // как вызвать actions с объект с параметром
pTitle: val.post.title,
pBody: val.post.body,
pId: val.post.id
})
},
}
}
</script>
The code of the History component where the last 5 posts that were opened should be displayed:
<template>
<div class="history">
<ul>
<li v-for="(historyPost, index) in historyPosts" class="post" :key="index">
<img src="src/assets/nature.jpg">
<p class="boldText"> {{ post.title }}</p>
<p> {{ post.body }}</p>
</li>
</ul>
</div>
</template>
<script>
export default{
computed: {
historyPosts(){
return this.$store.state.historyPosts
},
},
}
</script>
And the code of my story (Vuex):
export default new vuex.Store({
state: {
posts: [],
sSearch: '',
title: '',
body: '',
id: Number,
historyPosts: []
},
actions: {
loadPosts ({commit}) {
axios.get('http://jsonplaceholder.typicode.com/posts').then(response => {
let posts = response.data
commit('SET_POSTS', posts)
}).catch(error => {
console.log(error);
})
},
transforTitleAndBody({commit}, payload){ // мутация которая изменяет сосотаяние в sSearch
const todo = {
title: payload.sTitle,
body: payload.sBody,
id: payload.sId
}
axios.post('http://jsonplaceholder.typicode.com/posts', todo).then(_ => {
commit('ADD_TODO', todo)
}).catch(function (error) {
console.log(error);
})
},
transforPostToHistoryComp({commit}, payload){ // мутация которая изменяет сосотаяние в sSearch
const todohistory = {
title: payload.pTitle,
body: payload.pBody,
id: payload.pId
}
commit('ADD_TODO_HISTORY', todohistory)
}
},
mutations: {
SET_POSTS(state, posts) {
state.posts = posts
},
transforSearch(state, payload){ // мутация которая изменяет сосотаяние в sSearch
state.sSearch = payload
},
ADD_TODO (state, todoObject) {
state.posts.unshift(todoObject)
},
ADD_TODO_HISTORY (state, todohistoryObject) {
state.historyPosts.unshift(todohistoryObject)
},
},
})

Answer 1

I found what happening. You have some erros on code of the file Pagination.vue
You was putting #click under <router-link>, that doesn't work because router link change the page with preventing effect any other event before leave.
I made some changes on template and script. I think will work.
<template>
<div class="app">
<ul>
<template v-for="(post, index) in paginatedData">
<li class="post" :key="index" #click="addPostToHistoryComp(post)">
<img src="src/assets/nature.jpg">
<p class="boldText">{{ post.title }}</p>
<p>{{ post.body }}</p>
</li>
</template>
</ul>
<div class="allpagination">
<button type="button" #click="page -=1" v-if="page > 0" class="prev"><<</button>
<div class="pagin">
<button
class="item"
v-for="n in evenPosts"
:key="n.id"
v-bind:class="{'selected': current === n.id}"
#click="page=n-1"
>{{ n }}</button>
</div>
<button type="button" #click="page +=1" class="next" v-if="page < evenPosts-1">>></button>
</div>
</div>
</template>
<script>
import { mapState } from "vuex";
export default {
name: "app",
data() {
return {
current: null,
page: 0,
visiblePostID: ""
};
},
mounted() {
this.$store.dispatch("loadPosts");
},
computed: {
posts() {
return this.$store.state.posts;
},
search() {
return this.$store.state.sSearch;
},
evenPosts: function(posts) {
return Math.ceil(this.posts.length / 6);
},
paginatedData() {
const start = this.page * 6;
const end = start + 6;
return this.filteredPosts.slice(start, end);
},
filteredPosts() {
return this.posts.filter(post => {
return post.title.match(this.search);
});
}
},
methods: {
addPostToHistoryComp(post) {
this.$store.dispatch("transforPostToHistoryComp", {
pTitle: post.title,
pBody: post.body,
pId: post.id
});
this.$router.push({
name: "detail",
params: { id: post.id, title: post.title, body: post.body }
});
}
}
};
</script>