DEV: Plugin API to add directory columns (#13440)

app/controllers/edit_directory_columns_controller.rb

@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+class EditDirectoryColumnsController < ApplicationController
+  requires_login
+
+  def index
+    raise Discourse::NotFound unless guardian.is_staff?
+
+    ensure_user_fields_have_columns
+
+    columns = DirectoryColumn.includes(:user_field).all
+    render_json_dump(directory_columns: serialize_data(columns, EditDirectoryColumnSerializer))
+  end
+
+  def update
+    raise Discourse::NotFound unless guardian.is_staff?
+    params.require(:directory_columns)
+    directory_column_params = params.permit(directory_columns: {})
+    directory_columns = DirectoryColumn.all
+
+    has_enabled_column = directory_column_params[:directory_columns].values.any? do |column_data|
+      column_data[:enabled].to_s == "true"
+    end
+    raise Discourse::InvalidParameters, "Must have at least one column enabled" unless has_enabled_column
+
+    directory_column_params[:directory_columns].values.each do |column_data|
+      existing_column = directory_columns.detect { |c| c.id == column_data[:id].to_i }
+      if (existing_column.enabled != column_data[:enabled] || existing_column.position != column_data[:position].to_i)
+        existing_column.update(enabled: column_data[:enabled], position: column_data[:position])
+      end
+    end
+
+    render json: success_json
+  end
+
+  private
+
+  def ensure_user_fields_have_columns
+    user_fields_without_column =
+      UserField.left_outer_joins(:directory_column)
+        .where(directory_column: { user_field_id: nil })
+        .where("show_on_profile=? OR show_on_user_card=?", true, true)
+
+    return unless user_fields_without_column.count > 0
+
+    next_position = DirectoryColumn.maximum("position") + 1
+
+    new_directory_column_attrs = []
+    user_fields_without_column.each do |user_field|
+      new_directory_column_attrs.push({
+        user_field_id: user_field.id,
+        enabled: false,
+        type: DirectoryColumn.types[:user_field],
+        position: next_position
+      })
+
+      next_position += 1
+    end
+
+    DirectoryColumn.insert_all(new_directory_column_attrs)
+  end
+end