>> Device.ethernets.collect(&:users).flatten.collect(&:id)
=> [35, 71, 85, 15, 15, 85, 71, 19, 1, 104, 1, 19, 19, 145, 11, 1115, 1, 475, 507, 1150, 163, 247, 1130, 402, 737, 145, 502, 526, 485, 38, 163, 820, 818, 1032, 1008, 760, 11, 35, 487, 483, 832, 342, 833, 352, 583, 323, 363, 846, 343, 395, 247, 464, 7, 398, 554, 5, 1, 276, 276, 332, 831, 909, 398, 18, 61, 363, 48, 58, 58, 59, 149, 435, 845, 636, 628, 323, 1058, 840, 399, 733, 723, 1004, 834, 342, 343, 352, 354, 741, 7, 67, 18, 765, 402, 812, 395, 773, 747, 435, 628, 475, 430, 840, 833, 403, 1040, 429, 442, 509, 474, 6, 486, 464, 485, 483, 507, 990, 839, 524, 679, 798, 859, 762, 531, 523, 521, 512, 816, 506, 734, 582, 799, 1016, 548, 567, 937, 532, 538, 886, 742, 576, 764, 1015, 543, 585, 602, 592, 795, 584, 397, 944, 926, 936, 931, 929, 1038, 769, 1152, 1039, 1054, 1139, 916, 922, 1057, 1030, 932, 1084, 930, 927, 924, 925, 928, 933, 935, 1044, 1013, 918, 1045, 919, 921, 1103, 914, 913, 1066, 912, 1043, 1019, 1041, 1073, 1042, 1076, 1079, 1023, 1080, 1022, 1001, 1098, 1203, 1094, 785, 873, 796, 806, 775, 860, 662, 819, 805, 871, 895, 784, 817, 841, 535, 574, 709, 818, 725, 726, 689, 471, 794, 461, 727, 724, 711, 715, 658, 656, 685, 683, 691, 696, 699, 698, 487, 774, 748, 736, 1008, 733, 723, 767, 771, 822, 826, 1032, 823, 829, 752, 1058, 834, 832, 909, 859, 985, 1025, 1004, 1150, 993, 1137, 1170, 403, 844, 509, 486, 1152, 1040, 429, 474, 484, 430, 985, 67, 11, 773, 990, 1001, 1025, 798, 823, 524, 679, 771, 1112, 706, 808, 531, 708, 707, 521, 523, 512, 816, 794, 506, 567, 538, 532, 799, 548, 576, 937, 886, 767, 582, 1015, 805, 819, 543, 774, 895, 795, 806, 602, 592, 843, 812, 871, 584, 860, 585, 397, 554, 944, 993, 1016, 1137, 923, 921, 936, 932, 931, 927, 933, 929, 928, 935, 930, 924, 926, 1103, 925, 922, 919, 912, 913, 914, 918, 1013, 1043, 1054, 1126, 1066, 1030, 1039, 1038, 1084, 1084, 916, 1139, 1042, 1200, 1217, 1057, 1045, 1074, 1041, 1073, 1024, 1022, 1023, 1019, 1076, 1080, 1098, 1079, 1094, 1159, 1203, 784, 817, 873, 796, 841, 785, 574, 535, 471, 769, 1170, 822, 741, 760, 461, 725, 727, 726, 709, 696, 689, 699, 662, 779, 829, 698, 691, 658, 752, 683, 762, 685, 656, 777, 724, 711, 826, 715, 839, 742, 858, 859, 399, 776, 708, 484, 707, 808, 706, 526, 38, 1126, 332, 1200, 1217, 1130, 636, 583, 858, 649, 779, 777, 846, 149, 845, 844, 843, 1112, 502, 736, 765, 734, 737, 649, 776, 748, 775, 764, 747]