discourse/lib/theme_modifier_helper.rb

# frozen_string_literal: true
class ThemeModifierHelper
  def initialize(request: nil, theme_ids: nil)
    @theme_ids = theme_ids || [request&.env&.[](:resolved_theme_id)]
  end

  ThemeModifierSet.modifiers.keys.each do |modifier|
    define_method(modifier) do
      Theme.lookup_modifier(@theme_ids, modifier)
    end
  end
end
FEATURE: Allow themes to specify modifiers in their about.json file (#9097) There are three modifiers: - serialize_topic_excerpts (boolean) - csp_extensions (array of strings) - svg_icons (array of strings) When multiple themes are active, the values will be combined. The combination method varies based on the setting. CSP/SVG arrays will be combined. serialize_topic_excerpts will use `Enumerable#any`. 2020-03-11 21:30:45 +08:00			`# frozen_string_literal: true`
			`class ThemeModifierHelper`
			`def initialize(request: nil, theme_ids: nil)`
PERF: Eager load Theme associations in Stylesheet Manager. 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. 2021-06-15 14:57:17 +08:00			`@theme_ids = theme_ids \|\| [request&.env&.[](:resolved_theme_id)]`
FEATURE: Allow themes to specify modifiers in their about.json file (#9097) There are three modifiers: - serialize_topic_excerpts (boolean) - csp_extensions (array of strings) - svg_icons (array of strings) When multiple themes are active, the values will be combined. The combination method varies based on the setting. CSP/SVG arrays will be combined. serialize_topic_excerpts will use `Enumerable#any`. 2020-03-11 21:30:45 +08:00			`end`

DEV: Allow plugins to add theme modifiers via db migrations (#9192) 2020-03-13 00:35:28 +08:00			`ThemeModifierSet.modifiers.keys.each do \|modifier\|`
FEATURE: Allow themes to specify modifiers in their about.json file (#9097) There are three modifiers: - serialize_topic_excerpts (boolean) - csp_extensions (array of strings) - svg_icons (array of strings) When multiple themes are active, the values will be combined. The combination method varies based on the setting. CSP/SVG arrays will be combined. serialize_topic_excerpts will use `Enumerable#any`. 2020-03-11 21:30:45 +08:00			`define_method(modifier) do`
			`Theme.lookup_modifier(@theme_ids, modifier)`
			`end`
			`end`
			`end`