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DbMigration supports altering UniqueConstraints and foreign keys (#1279)

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* NEW: Ebean reads version from pop.properties and prints it at start up

* DDL generation and migration can append a header and platformMigration is prepared to append epilog & prolog to scripts

* FIX: Set identity only, if it is not the platform default type

* Updated reference scripts

* ADD basic support for foreign key migration

* DbMigration detects alter foreign keys

* tests
This commit is contained in:
Roland Praml
2018-02-26 14:24:52 +13:00
committed by Rob Bygrave
parent a64a244745
commit da7bb834e7
70 changed files with 1806 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/main/java/io/ebeaninternal/dbmigration/model/ModelContainer.java
+35
View File
@@ -1,10 +1,13 @@
package io.ebeaninternal.dbmigration.model;
import io.ebeaninternal.dbmigration.ddlgeneration.platform.DdlHelp;
import io.ebeaninternal.dbmigration.ddlgeneration.platform.SplitColumns;
import io.ebeaninternal.dbmigration.migration.AddColumn;
import io.ebeaninternal.dbmigration.migration.AddHistoryTable;
import io.ebeaninternal.dbmigration.migration.AddTableComment;
import io.ebeaninternal.dbmigration.migration.AddUniqueConstraint;
import io.ebeaninternal.dbmigration.migration.AlterColumn;
import io.ebeaninternal.dbmigration.migration.AlterForeignKey;
import io.ebeaninternal.dbmigration.migration.ChangeSet;
import io.ebeaninternal.dbmigration.migration.ChangeSetType;
import io.ebeaninternal.dbmigration.migration.CreateIndex;
@@ -134,6 +137,10 @@ public class ModelContainer {
applyChange((AddHistoryTable) change);
} else if (change instanceof DropHistoryTable) {
applyChange((DropHistoryTable) change);
} else if (change instanceof AddUniqueConstraint) {
applyChange((AddUniqueConstraint) change);
} else if (change instanceof AlterForeignKey) {
applyChange((AlterForeignKey) change);
} else if (change instanceof AddTableComment) {
applyChange((AddTableComment) change);
} else {
@@ -166,6 +173,34 @@ public class ModelContainer {
table.setWithHistory(false);
}
private void applyChange(AddUniqueConstraint change) {
MTable table = tables.get(change.getTableName());
if (table == null) {
throw new IllegalStateException("Table [" + change.getTableName() + "] does not exist in model?");
}
if (DdlHelp.isDropConstraint(change.getColumnNames())) {
table.getUniqueConstraints().removeIf(constraint -> constraint.getName().equals(change.getConstraintName()));
} else {
MCompoundUniqueConstraint constraint = new MCompoundUniqueConstraint(
SplitColumns.split(change.getColumnNames()), change.isOneToOne(), change.getConstraintName());
constraint.setNullableColumns(SplitColumns.split(change.getNullableColumns()));
table.getUniqueConstraints().add(constraint);
}
}
private void applyChange(AlterForeignKey change) {
MTable table = tables.get(change.getTableName());
if (table == null) {
throw new IllegalStateException("Table [" + change.getName() + "] does not exist in model?");
}
if (DdlHelp.isDropForeignKey(change.getColumnNames())) {
table.removeForeignKey(change.getName());
} else {
table.addForeignKey(change.getName(), change.getRefTableName(), change.getIndexName(), change.getColumnNames(),
change.getRefColumnNames());
}
}
private void applyChange(AddTableComment change) {
MTable table = tables.get(change.getName());
if (table == null) {