Class: Engine2::ListMeta

Inherits:
Meta show all
Includes:
MetaListSupport, MetaQuerySupport
Defined in:
lib/engine2/meta/list_meta.rb

Direct Known Subclasses

ManyToOneListMeta, StarToManyListMeta

Instance Attribute Summary

Attributes included from MetaListSupport

#filters, #orders

Attributes inherited from Meta

#action, #assets, #invokable, #static

Instance Method Summary collapse

Methods included from MetaListSupport

#filter, #order, #post_process, #pre_run, #search_live, #search_template, #searchable, #searchable_tabs, #select_toggle_menu, #sortable, #template

Methods included from MetaModelSupport

#action_defined, #get_type_info, #hide_pk, #pre_run, #show_pk, #unsupported_association

Methods included from MetaAPISupport

#config, #decorate, #field_filter, #hide_fields, #info, #info!, #loc!, #reload_routes!, #render, #show_fields

Methods included from MetaTabSupport

#field_tabs, #lazy_tab, #select_tabs

Methods included from MetaPanelSupport

#footer, #modal_action, #panel, #panel_class, #panel_panel_template, #panel_template, #panel_title, #pre_run

Methods included from MetaMenuSupport

#menu, #post_process

Methods included from MetaOnChangeSupport

#on_change

Methods included from MetaQuerySupport

#get_query, #query, #select

Methods inherited from Meta

#action_defined, #check_static_meta, #dynamic?, #freeze_meta, #get, http_method, #http_method, inherited, #initialize, #invoke!, #lookup, #merge, #meta_type, meta_type, #post_process, #pre_run, #request, #request_meta_proc_params, #response, #split_keys

Constructor Details

This class inherits a constructor from Engine2::Meta

Instance Method Details

#invoke(handler) ⇒ Object 



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# File 'lib/engine2/meta/list_meta.rb', line 75

def invoke handler
    params = handler.params
    model = assets[:model]
    query = list_context(get_query, handler)

    if search = params[:search]
        query = list_search(query, handler, search)
    end

    count = query.count if lookup(:config, :use_count)

    if order_str = params[:order]
        order = order_str.to_sym
        handler.permit lookup(:info, order, :sort)

        if order_blk = (@orders && @orders[order]) || (dynamic? && (static.orders && static.orders[order]))
            query = order_blk.(query, handler)
        else
            order = order.qualify(model.table_name) if model.type_info[order]
            query = query.order(order)
        end

        query = query.reverse if params[:asc] == "true"
    end

    per_page = lookup(:config, :per_page)
    page = params[:page].to_i
    handler.permit page >= 0 && page < 1000

    query = query.limit(per_page, page)

    res = {entries: query.all}
    res[:count] = count if count
    res
end

#list_context(query, handler) ⇒ Object 



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# File 'lib/engine2/meta/list_meta.rb', line 134

def list_context query, handler
    query
end

#list_search(query, handler, search) ⇒ Object 



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# File 'lib/engine2/meta/list_meta.rb', line 111

def list_search query, handler, search
    hash = JSON.parse(search, symbolize_names: true) rescue handler.halt_forbidden
    model = assets[:model]
    sfields = lookup(:search_fields)
    handler.permit sfields
    hash.each_pair do |name, value|
        handler.permit sfields.include?(name)

        type_info = get_type_info(name)
        query = if filter = (@filters && @filters[name]) || (dynamic? && (static.filters && static.filters[name]))
            filter.(query, hash, handler)
        elsif filter = DefaultFilters[type_info[:otype]]
            name = model.type_info[name] ? name.qualify(model.table_name) : Sequel.expr(name)
            filter.(query, name, value, type_info, hash)
        else
            raise E2Error.new("Filter not found for field #{name} in model #{model}") unless filter
        end

        handler.permit query
    end
    query
end

#post_run ⇒ Object 



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# File 'lib/engine2/meta/list_meta.rb', line 70

def post_run
    query select(*assets[:model].columns.reject{|col| assets[:model].type_info[col][:length].to_i > 20}.take(10)) unless @query
    super
end