Video 21

4 files changed, 154 insertions, 0 deletions

diff --git a/stepped-solutions/21/backend/src/resolvers/Mutation.js b/stepped-solutions/21/backend/src/resolvers/Mutation.js
new file mode 100755
index 0000000..c5ac963
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+++ b/stepped-solutions/21/backend/src/resolvers/Mutation.js
@@ -0,0 +1,45 @@
+const Mutations = {
+  async createItem(parent, args, ctx, info) {
+    // TODO: Check if they are logged in
+
+    const item = await ctx.db.mutation.createItem(
+      {
+        data: {
+          ...args,
+        },
+      },
+      info
+    );
+
+    console.log(item);
+
+    return item;
+  },
+  updateItem(parent, args, ctx, info) {
+    // first take a copy of the updates
+    const updates = { ...args };
+    // remove the ID from the updates
+    delete updates.id;
+    // run the update method
+    return ctx.db.mutation.updateItem(
+      {
+        data: updates,
+        where: {
+          id: args.id,
+        },
+      },
+      info
+    );
+  },
+  async deleteItem(parent, args, ctx, info) {
+    const where = { id: args.id };
+    // 1. find the item
+    const item = await ctx.db.query.item({ where }, `{ id title}`);
+    // 2. Check if they own that item, or have the permissions
+    // TODO
+    // 3. Delete it!
+    return ctx.db.mutation.deleteItem({ where }, info);
+  },
+};
+
+module.exports = Mutations;
diff --git a/stepped-solutions/21/backend/src/schema.graphql b/stepped-solutions/21/backend/src/schema.graphql
new file mode 100755
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+++ b/stepped-solutions/21/backend/src/schema.graphql
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+# import * from './generated/prisma.graphql'
+
+type Mutation {
+  createItem(title: String, description: String, price: Int, image: String, largeImage: String): Item!
+  updateItem(id: ID!, title: String, description: String, price: Int): Item!
+  deleteItem(id: ID!): Item
+}
+
+type Query {
+  items: [Item]!
+  item(where: ItemWhereUniqueInput!): Item
+}
diff --git a/stepped-solutions/21/frontend/components/DeleteItem.js b/stepped-solutions/21/frontend/components/DeleteItem.js
new file mode 100755
index 0000000..4d9bd2b
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+++ b/stepped-solutions/21/frontend/components/DeleteItem.js
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+import React, { Component } from 'react';
+import { Mutation } from 'react-apollo';
+import gql from 'graphql-tag';
+import { ALL_ITEMS_QUERY } from './Items';
+
+const DELETE_ITEM_MUTATION = gql`
+  mutation DELETE_ITEM_MUTATION($id: ID!) {
+    deleteItem(id: $id) {
+      id
+    }
+  }
+`;
+
+class DeleteItem extends Component {
+  update = (cache, payload) => {
+    // manually update the cache on the client, so it matches the server
+    // 1. Read the cache for the items we want
+    const data = cache.readQuery({ query: ALL_ITEMS_QUERY });
+    console.log(data, payload);
+    // 2. Filter the deleted itemout of the page
+    data.items = data.items.filter(item => item.id !== payload.data.deleteItem.id);
+    // 3. Put the items back!
+    cache.writeQuery({ query: ALL_ITEMS_QUERY, data });
+  };
+  render() {
+    return (
+      <Mutation
+        mutation={DELETE_ITEM_MUTATION}
+        variables={{ id: this.props.id }}
+        update={this.update}
+      >
+        {(deleteItem, { error }) => (
+          <button
+            onClick={() => {
+              if (confirm('Are you sure you want to delete this item?')) {
+                deleteItem();
+              }
+            }}
+          >
+            {this.props.children}
+          </button>
+        )}
+      </Mutation>
+    );
+  }
+}
+
+export default DeleteItem;
diff --git a/stepped-solutions/21/frontend/components/Item.js b/stepped-solutions/21/frontend/components/Item.js
new file mode 100755
index 0000000..a40439b
--- /dev/null
+++ b/stepped-solutions/21/frontend/components/Item.js
@@ -0,0 +1,49 @@
+import React, { Component } from 'react';
+import PropTypes from 'prop-types';
+import Link from 'next/link';
+import Title from './styles/Title';
+import ItemStyles from './styles/ItemStyles';
+import PriceTag from './styles/PriceTag';
+import formatMoney from '../lib/formatMoney';
+import DeleteItem from './DeleteItem';
+
+export default class Item extends Component {
+  static propTypes = {
+    item: PropTypes.object.isRequired,
+  };
+
+  render() {
+    const { item } = this.props;
+    return (
+      <ItemStyles>
+        {item.image && <img src={item.image} alt={item.title} />}
+
+        <Title>
+          <Link
+            href={{
+              pathname: '/item',
+              query: { id: item.id },
+            }}
+          >
+            <a>{item.title}</a>
+          </Link>
+        </Title>
+        <PriceTag>{formatMoney(item.price)}</PriceTag>
+        <p>{item.description}</p>
+
+        <div className="buttonList">
+          <Link
+            href={{
+              pathname: 'update',
+              query: { id: item.id },
+            }}
+          >
+            <a>Edit ✏️</a>
+          </Link>
+          <button>Add To Cart</button>
+          <DeleteItem id={item.id}>Delete This Item</DeleteItem>
+        </div>
+      </ItemStyles>
+    );
+  }
+}