discourse/lib/site_settings/db_provider.rb

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module SiteSettings; end
class SiteSettings::DbProvider
def initialize(model)
model.after_commit do
model.notify_changed!
end
@model = model
end
def all
return [] unless table_exists?
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# Not leaking out AR records, cause I want all editing to happen via this API
SqlBuilder.new("SELECT name, data_type, value FROM #{@model.table_name}").map_exec(OpenStruct)
end
def find(name)
return nil unless table_exists?
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# Not leaking out AR records, cause I want all editing to happen via this API
SqlBuilder.new("SELECT name, data_type, value FROM #{@model.table_name} WHERE name = :name")
.map_exec(OpenStruct, name: name)
.first
end
def save(name, value, data_type)
return unless table_exists?
model = @model.find_by(name: name)
model ||= @model.new
model.name = name
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model.value = value
model.data_type = data_type
# save! used to ensure after_commit is called
model.save! if model.changed?
true
end
def destroy(name)
return unless table_exists?
@model.where(name: name).destroy_all
end
def current_site
RailsMultisite::ConnectionManagement.current_db
end
protected
# table is not in the db yet, initial migration, etc
def table_exists?
@table_exists ||= {}
unless @table_exists[current_site]
@table_exists[current_site] = ActiveRecord::Base.connection.table_exists?(@model.table_name)
end
@table_exists[current_site]
end
end