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Measurements can be one of three types.

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This commit is contained in:
Matthew Dillon 2014-12-03 13:52:21 -09:00
parent 641203ceb9
commit d092637b33
4 changed files with 23 additions and 14 deletions
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16
datastore/migrations/00009_AddMeasurements_up.sql
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@ -6,7 +6,8 @@ CREATE TABLE measurements (
strain_id BIGINT,
observation_id BIGINT,
text_measurement_type_id BIGINT NULL,
measurement_value NUMERIC(8, 3) NULL,
txt_value CHARACTER VARYING(255) NULL,
num_value NUMERIC(8, 3) NULL,
confidence_interval NUMERIC(8, 3) NULL,
unit_type_id BIGINT NULL,
notes CHARACTER VARYING(255) NULL,
@ -21,12 +22,19 @@ CREATE TABLE measurements (
FOREIGN KEY (unit_type_id) REFERENCES unit_types(id),
CONSTRAINT exclusive_data_type CHECK (
(text_measurement_type_id IS NOT NULL
AND measurement_value IS NULL
AND txt_value IS NULL
AND num_value IS NULL
AND confidence_interval IS NULL
AND unit_type_id IS NULL)
OR
(text_measurement_type_id IS NULL
AND measurement_value IS NOT NULL))
AND txt_value IS NULL
AND num_value IS NOT NULL)
OR
(text_measurement_type_id IS NULL
AND txt_value IS NOT NULL
AND num_value IS NULL
AND confidence_interval IS NULL
AND unit_type_id IS NULL))
);