Open-ILS/src/sql/Pg/upgrade/0427.schema.hold_matrix_root_ou.sql

   1 BEGIN;
   2
   3 INSERT INTO config.upgrade_log (version) VALUES ('0427'); -- gmc
   4
   5 CREATE OR REPLACE FUNCTION action.find_hold_matrix_matchpoint( pickup_ou INT, request_ou INT, match_item BIGINT, match_user INT, match_requestor INT ) RETURNS INT AS $func$
   6 DECLARE
   7     current_requestor_group    permission.grp_tree%ROWTYPE;
   8     requestor_object    actor.usr%ROWTYPE;
   9     user_object        actor.usr%ROWTYPE;
  10     item_object        asset.copy%ROWTYPE;
  11     item_cn_object        asset.call_number%ROWTYPE;
  12     rec_descriptor        metabib.rec_descriptor%ROWTYPE;
  13     current_mp_weight    FLOAT;
  14     matchpoint_weight    FLOAT;
  15     tmp_weight        FLOAT;
  16     current_mp        config.hold_matrix_matchpoint%ROWTYPE;
  17     matchpoint        config.hold_matrix_matchpoint%ROWTYPE;
  18 BEGIN
  19     SELECT INTO user_object * FROM actor.usr WHERE id = match_user;
  20     SELECT INTO requestor_object * FROM actor.usr WHERE id = match_requestor;
  21     SELECT INTO item_object * FROM asset.copy WHERE id = match_item;
  22     SELECT INTO item_cn_object * FROM asset.call_number WHERE id = item_object.call_number;
  23     SELECT INTO rec_descriptor r.* FROM metabib.rec_descriptor r WHERE r.record = item_cn_object.record;
  24
  25     PERFORM * FROM config.internal_flag WHERE name = 'circ.holds.usr_not_requestor' AND enabled;
  26
  27     IF NOT FOUND THEN
  28         SELECT INTO current_requestor_group * FROM permission.grp_tree WHERE id = requestor_object.profile;
  29     ELSE
  30         SELECT INTO current_requestor_group * FROM permission.grp_tree WHERE id = user_object.profile;
  31     END IF;
  32
  33     LOOP
  34         -- for each potential matchpoint for this ou and group ...
  35         FOR current_mp IN
  36             SELECT    m.*
  37               FROM    config.hold_matrix_matchpoint m
  38               WHERE    m.requestor_grp = current_requestor_group.id AND m.active
  39               ORDER BY    CASE WHEN m.circ_modifier    IS NOT NULL THEN 16 ELSE 0 END +
  40                     CASE WHEN m.juvenile_flag    IS NOT NULL THEN 16 ELSE 0 END +
  41                     CASE WHEN m.marc_type        IS NOT NULL THEN 8 ELSE 0 END +
  42                     CASE WHEN m.marc_form        IS NOT NULL THEN 4 ELSE 0 END +
  43                     CASE WHEN m.marc_vr_format    IS NOT NULL THEN 2 ELSE 0 END +
  44                     CASE WHEN m.ref_flag        IS NOT NULL THEN 1 ELSE 0 END DESC LOOP
  45
  46             current_mp_weight := 5.0;
  47
  48             IF current_mp.circ_modifier IS NOT NULL THEN
  49                 CONTINUE WHEN current_mp.circ_modifier <> item_object.circ_modifier OR item_object.circ_modifier IS NULL;
  50             END IF;
  51
  52             IF current_mp.marc_type IS NOT NULL THEN
  53                 IF item_object.circ_as_type IS NOT NULL THEN
  54                     CONTINUE WHEN current_mp.marc_type <> item_object.circ_as_type;
  55                 ELSE
  56                     CONTINUE WHEN current_mp.marc_type <> rec_descriptor.item_type;
  57                 END IF;
  58             END IF;
  59
  60             IF current_mp.marc_form IS NOT NULL THEN
  61                 CONTINUE WHEN current_mp.marc_form <> rec_descriptor.item_form;
  62             END IF;
  63
  64             IF current_mp.marc_vr_format IS NOT NULL THEN
  65                 CONTINUE WHEN current_mp.marc_vr_format <> rec_descriptor.vr_format;
  66             END IF;
  67
  68             IF current_mp.juvenile_flag IS NOT NULL THEN
  69                 CONTINUE WHEN current_mp.juvenile_flag <> user_object.juvenile;
  70             END IF;
  71
  72             IF current_mp.ref_flag IS NOT NULL THEN
  73                 CONTINUE WHEN current_mp.ref_flag <> item_object.ref;
  74             END IF;
  75
  76
  77             -- caclulate the rule match weight
  78             IF current_mp.item_owning_ou IS NOT NULL THEN
  79                 SELECT INTO tmp_weight 1.0 / (actor.org_unit_proximity(current_mp.item_owning_ou, item_cn_object.owning_lib)::FLOAT + 1.0)::FLOAT;
  80                 current_mp_weight := current_mp_weight - tmp_weight;
  81             END IF;
  82
  83             IF current_mp.item_circ_ou IS NOT NULL THEN
  84                 SELECT INTO tmp_weight 1.0 / (actor.org_unit_proximity(current_mp.item_circ_ou, item_object.circ_lib)::FLOAT + 1.0)::FLOAT;
  85                 current_mp_weight := current_mp_weight - tmp_weight;
  86             END IF;
  87
  88             IF current_mp.pickup_ou IS NOT NULL THEN
  89                 SELECT INTO tmp_weight 1.0 / (actor.org_unit_proximity(current_mp.pickup_ou, pickup_ou)::FLOAT + 1.0)::FLOAT;
  90                 current_mp_weight := current_mp_weight - tmp_weight;
  91             END IF;
  92
  93             IF current_mp.request_ou IS NOT NULL THEN
  94                 SELECT INTO tmp_weight 1.0 / (actor.org_unit_proximity(current_mp.request_ou, request_ou)::FLOAT + 1.0)::FLOAT;
  95                 current_mp_weight := current_mp_weight - tmp_weight;
  96             END IF;
  97
  98             IF current_mp.user_home_ou IS NOT NULL THEN
  99                 SELECT INTO tmp_weight 1.0 / (actor.org_unit_proximity(current_mp.user_home_ou, user_object.home_ou)::FLOAT + 1.0)::FLOAT;
 100                 current_mp_weight := current_mp_weight - tmp_weight;
 101             END IF;
 102
 103             -- set the matchpoint if we found the best one
 104             IF matchpoint_weight IS NULL OR matchpoint_weight > current_mp_weight THEN
 105                 matchpoint = current_mp;
 106                 matchpoint_weight = current_mp_weight;
 107             END IF;
 108
 109         END LOOP;
 110
 111         EXIT WHEN current_requestor_group.parent IS NULL OR matchpoint.id IS NOT NULL;
 112
 113         SELECT INTO current_requestor_group * FROM permission.grp_tree WHERE id = current_requestor_group.parent;
 114     END LOOP;
 115
 116     RETURN matchpoint.id;
 117 END;
 118 $func$ LANGUAGE plpgsql;
 119
 120 COMMIT;