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8e3691d537
Before this change, calling `StyleSheet::Manager.stylesheet_details` for the first time resulted in multiple queries to the database. This is because the code was modelled in a way where each `Theme` was loaded from the database one at a time. This PR restructures the code such that it allows us to load all the theme records in a single query. It also allows us to eager load the required associations upfront. In order to achieve this, I removed the support of loading multiple themes per request. It was initially added to support user selectable theme components but the feature was never completed and abandoned because it wasn't a feature that we thought was worth building.
133 lines
4.0 KiB
Ruby
133 lines
4.0 KiB
Ruby
# frozen_string_literal: true
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class BootstrapController < ApplicationController
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include ApplicationHelper
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skip_before_action :redirect_to_login_if_required
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# This endpoint allows us to produce the data required to start up Discourse via JSON API,
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# so that you don't have to scrape the HTML for `data-*` payloads
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def index
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locale = script_asset_path("locales/#{I18n.locale}")
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preload_anonymous_data
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if current_user
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current_user.sync_notification_channel_position
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preload_current_user_data
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end
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@stylesheets = []
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add_scheme(scheme_id, 'all')
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add_scheme(dark_scheme_id, '(prefers-color-scheme: dark)')
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if rtl?
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add_style(mobile_view? ? :mobile_rtl : :desktop_rtl)
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else
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add_style(mobile_view? ? :mobile : :desktop)
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end
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add_style(:admin) if staff?
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Discourse.find_plugin_css_assets(
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include_official: allow_plugins?,
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include_unofficial: allow_third_party_plugins?,
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mobile_view: mobile_view?,
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desktop_view: !mobile_view?,
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request: request
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).each do |file|
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add_style(file, plugin: true)
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end
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add_style(mobile_view? ? :mobile_theme : :desktop_theme) if theme_id.present?
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extra_locales = []
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if ExtraLocalesController.client_overrides_exist?
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extra_locales << ExtraLocalesController.url('overrides')
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end
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if staff?
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extra_locales << ExtraLocalesController.url('admin')
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end
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plugin_js = Discourse.find_plugin_js_assets(
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include_official: allow_plugins?,
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include_unofficial: allow_third_party_plugins?,
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request: request
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).map { |f| script_asset_path(f) }
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bootstrap = {
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theme_ids: [theme_id],
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title: SiteSetting.title,
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current_homepage: current_homepage,
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locale_script: locale,
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stylesheets: @stylesheets,
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plugin_js: plugin_js,
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plugin_test_js: [script_asset_path("plugin_tests")],
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setup_data: client_side_setup_data,
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preloaded: @preloaded,
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html: create_html,
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theme_html: create_theme_html,
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html_classes: html_classes,
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html_lang: html_lang,
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login_path: main_app.login_path
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}
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bootstrap[:extra_locales] = extra_locales if extra_locales.present?
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bootstrap[:csrf_token] = form_authenticity_token if current_user
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render_json_dump(bootstrap: bootstrap)
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end
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private
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def add_scheme(scheme_id, media)
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return if scheme_id.to_i == -1
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if style = Stylesheet::Manager.new(theme_id: theme_id).color_scheme_stylesheet_details(scheme_id, media)
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@stylesheets << { href: style[:new_href], media: media }
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end
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end
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def add_style(target, opts = nil)
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if styles = Stylesheet::Manager.new(theme_id: theme_id).stylesheet_details(target, 'all')
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styles.each do |style|
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@stylesheets << {
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href: style[:new_href],
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media: 'all',
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theme_id: style[:theme_id],
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target: style[:target]
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}.merge(opts || {})
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end
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end
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end
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def create_html
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html = {}
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return html unless allow_plugins?
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add_plugin_html(html, :before_body_close)
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add_plugin_html(html, :before_head_close)
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add_plugin_html(html, :before_script_load)
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add_plugin_html(html, :header)
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html
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end
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def add_plugin_html(html, key)
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add_if_present(html, key, DiscoursePluginRegistry.build_html("server:#{key.to_s.dasherize}", self))
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end
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def create_theme_html
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theme_html = {}
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return theme_html if customization_disabled?
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theme_view = mobile_view? ? :mobile : :desktop
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add_if_present(theme_html, :body_tag, Theme.lookup_field(theme_id, theme_view, 'body_tag'))
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add_if_present(theme_html, :head_tag, Theme.lookup_field(theme_id, theme_view, 'head_tag'))
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add_if_present(theme_html, :header, Theme.lookup_field(theme_id, theme_view, 'header'))
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add_if_present(theme_html, :translations, Theme.lookup_field(theme_id, :translations, I18n.locale))
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add_if_present(theme_html, :js, Theme.lookup_field(theme_id, :extra_js, nil))
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theme_html
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end
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def add_if_present(hash, key, val)
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hash[key] = val if val.present?
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end
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end
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