First cut of item-with-feed and list impl

- Add strict types to all files
- Convert many queries to document commands

src/lib/Item.php

@@ -1,13 +1,6 @@
-<?php
-namespace FeedReaderCentral;
+<?php declare(strict_types=1);
 
-use BitBadger\Documents\DocumentException;
-use BitBadger\Documents\Field;
-use BitBadger\Documents\JsonMapper;
-use BitBadger\Documents\Query;
-use BitBadger\Documents\SQLite\Configuration;
-use BitBadger\Documents\SQLite\Custom;
-use BitBadger\Documents\SQLite\Parameters;
+namespace FeedReaderCentral;
 
 /**
  * An item from a feed
@@ -71,27 +64,4 @@ class Item
             updated_on:   $item->updatedOn,
             content:      $item->content);
     }
-
-    /**
-     * Retrieve an item by its ID, ensuring that its owner matches the current user
-     *
-     * @param int $id The ID of the item to retrieve
-     * @return Item|false The item if it exists and is owned by the current user, false if not
-     * @throws DocumentException If any is encountered
-     */
-    public static function retrieveByIdForUser(int $id): Item|false
-    {
-        $idField = Field::EQ(Configuration::idField(), $id, '@id');
-        $idField->qualifier = Table::ITEM;
-        $userField = Field::EQ('user_id', $_SESSION[Key::USER_ID], '@user');
-        $userField->qualifier = Table::FEED;
-        $fields = [$idField, $userField];
-
-        $where = Query::whereByFields($fields);
-        $item = Table::ITEM;
-        $feed = Table::FEED;
-        return Custom::single(
-            "SELECT $item.data FROM $item INNER JOIN $feed ON $item.data->>'feed_id' = $feed.data->>'id' WHERE $where",
-            Parameters::addFields($fields, []), new JsonMapper(Item::class));
-    }
 }