Fix issue with null value in first price/first currency.

Author: cssru

src/main/resources/liquibase/version/0.4.xml

@@ -18,5 +18,6 @@
 	<include file="0.4/2016-08-18--unique_slug_in_collections.xml" relativeToChangelogFile="true" />
 	<include file="0.4/2016-08-22--series_sales.xml" relativeToChangelogFile="true" />
 	<include file="0.4/2016-08-27--fix_series_sales_price.xml" relativeToChangelogFile="true" />
+	<include file="0.4/2016-09-28--add_constraints_to_series-first-price.xml" relativeToChangelogFile="true" />
 
 </databaseChangeLog>

src/main/resources/liquibase/version/0.4/2016-09-28--add_constraints_to_series-first-price.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+	xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+		http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.0.xsd">
+	
+	<changeSet id="add-not_null_constraints-to-first-price" author="cssru" context="scheme">
+		<comment>Adds not null constraints to first_price and first_currency columns</comment>
+		
+		<addNotNullConstraint columnDataType="CURRENCY"
+			columnName="first_price"
+			tableName="series_sales" />
+		
+		<addNotNullConstraint columnDataType="VARCHAR(3)"
+			columnName="first_currency"
+			tableName="series_sales" />
+		
+	</changeSet>
+
+</databaseChangeLog>