Hi all,
I'm trying to write a prepared statement to insert multiple rows at once
and having some trouble.
Given the following code:
query = <<-SQL
WITH new_widgets (widget_id) AS (VALUES :widget_ids)
INSERT INTO widgets (widget_group, widget_id)
SELECT :widget_group, new_widgets.widget_id
FROM new_widgets
LEFT OUTER JOIN widgets ON widgets.widget_group = :widget_group AND
new_widgets.widget_id = widgets.widget_id
WHERE widgets.id IS NULL
SQL
insert_ds = DB[query, widget_group: "animal", widget_ids: widget_ids]
insert_ds.insert
Trying with a 2-dimensional array:
widget_ids = [["cat"], ["dog"], ["fish"]]
# => WITH new_widgets (widget_id) AS (VALUES (('cat'), ('dog'), ('fish')))
Trying with a 1-dimensional array:
widget_ids = ["cat", "dog", "fish"]
# => WITH new_widgets (widget_id) AS (VALUES ('cat', 'dog', 'fish'))
What I actually want:
# => WITH new_widgets (widget_id) AS (VALUES ('cat'), ('dog'), ('fish'))
Is there a way to bind the correct values in here?
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