+sub get_simple_stock_sql {
+ my ($self, %params) = @_;
+
+ return [] unless $self->id;
+
+ my $query = <<SQL;
+ SELECT w.description AS warehouse_description,
+ b.description AS bin_description,
+ SUM(i.qty) AS qty,
+ SUM(i.qty * p.lastcost) AS stock_value,
+ p.unit AS unit,
+ LEAD(w.description) OVER pt AS wh_lead, -- to detect warehouse changes for subtotals in template
+ SUM( SUM(i.qty) ) OVER pt AS run_qty, -- running total of total qty
+ SUM( SUM(i.qty) ) OVER wh AS wh_run_qty, -- running total of warehouse qty
+ SUM( SUM(i.qty * p.lastcost)) OVER pt AS run_stock_value, -- running total of total stock_value
+ SUM( SUM(i.qty * p.lastcost)) OVER wh AS wh_run_stock_value -- running total of warehouse stock_value
+ FROM inventory i
+ LEFT JOIN parts p ON (p.id = i.parts_id)
+ LEFT JOIN warehouse w ON (i.warehouse_id = w.id)
+ LEFT JOIN bin b ON (i.bin_id = b.id)
+ WHERE parts_id = ?
+ GROUP BY w.description, w.sortkey, b.description, p.unit, i.parts_id
+ HAVING SUM(qty) != 0
+ WINDOW pt AS (PARTITION BY i.parts_id ORDER BY w.sortkey, b.description, p.unit),
+ wh AS (PARTITION by w.description ORDER BY w.sortkey, b.description, p.unit)
+ ORDER BY w.sortkey, b.description, p.unit
+SQL
+
+ my $stock_info = selectall_hashref_query($::form, $self->db->dbh, $query, $self->id);
+ return $stock_info;
+}
+
+sub get_mini_journal {
+ my ($self) = @_;
+
+ # inventory ids of the most recent 10 inventory trans_ids
+
+ # duplicate code copied from SL::Controller::Inventory mini_journal, except
+ # for the added filter on parts_id
+
+ my $parts_id = $self->id;
+ my $query = <<"SQL";
+with last_inventories as (
+ select id,
+ trans_id,
+ itime
+ from inventory
+ where parts_id = $parts_id
+ order by itime desc
+ limit 20
+),
+grouped_ids as (
+ select trans_id,
+ array_agg(id) as ids
+ from last_inventories
+ group by trans_id
+ order by max(itime)
+ desc limit 10
+)
+select unnest(ids)
+ from grouped_ids
+ limit 20 -- so the planner knows how many ids to expect, the cte is an optimisation fence
+SQL
+
+ my $objs = SL::DB::Manager::Inventory->get_all(
+ query => [ id => [ \"$query" ] ], # make emacs happy "
+ with_objects => [ 'parts', 'trans_type', 'bin', 'bin.warehouse' ], # prevent lazy loading in template
+ sort_by => 'itime DESC',
+ );
+ # remember order of trans_ids from query, for ordering hash later
+ my @sorted_trans_ids = uniq map { $_->trans_id } @$objs;
+
+ # at most 2 of them belong to a transaction and the qty determines in or out.
+ my %transactions;
+ for (@$objs) {
+ $transactions{ $_->trans_id }{ $_->qty > 0 ? 'in' : 'out' } = $_;
+ $transactions{ $_->trans_id }{base} = $_;
+ }
+
+ # because the inventory transactions were built in a hash, we need to sort the
+ # hash by using the original sort order of the trans_ids
+ my @sorted = map { $transactions{$_} } @sorted_trans_ids;
+
+ return \@sorted;