Added WIP campaigns. Fixed entity tiles using full logo.

src/campaigns.js

@@ -0,0 +1,47 @@
+import { knexOwner as knex } from './knex.js';
+import { curateEntity } from './entities.js';
+
+function curateCampaign(campaign) {
+	if (!campaign) {
+		return null;
+	}
+
+	return {
+		id: campaign.id,
+		url: campaign.url,
+		banner: campaign.banner && {
+			id: campaign.banner.id,
+			type: campaign.banner.type,
+			entity: campaign.banner_entity && curateEntity({ ...campaign.banner_entity, parent: campaign.banner_parent_entity }),
+			tags: campaign.banner_tags?.map((tag) => ({
+				id: tag.id,
+				slug: tag.slug,
+				name: tag.name,
+			})) || [],
+		},
+		affiliateId: campaign.affiliate_id,
+	};
+}
+
+export async function getRandomCampaign(options = {}) {
+	const campaign = await knex.raw(`
+		SELECT
+			campaigns.*, row_to_json(banners) as banner, row_to_json(entities) as banner_entity, row_to_json(parents) as banner_parent_entity, json_agg(tags) filter (where tags.id is not null) as banner_tags
+		FROM campaigns
+		LEFT JOIN banners ON banners.id = campaigns.banner_id
+		LEFT JOIN banners_tags ON banners_tags.banner_id = banners.id
+		LEFT JOIN tags ON tags.id = banners_tags.tag_id
+		LEFT JOIN entities ON entities.id = banners.entity_id
+		LEFT JOIN entities as parents ON parents.id = entities.parent_id
+		WHERE campaigns.banner_id IS NOT NULL
+		AND ratio >= :minRatio
+		AND ratio <= :maxRatio
+		GROUP BY campaigns.id, banners.id, entities.id, parents.id
+		ORDER BY RANDOM()
+	`, {
+		minRatio: options.minRatio || 0,
+		maxRatio: options.maxRatio || 1000,
+	});
+
+	return curateCampaign(campaign.rows[0]);
+}