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Remove FK on many-to-many relation before drop the table

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This commit is contained in:
Aurélien Georget 2016-04-07 18:15:58 +02:00
parent 1c6a96fd2c
commit 40267a770d
3 changed files with 29 additions and 5 deletions
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29
packages/strapi-generate-migrations/lib/builder/relations.js
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@ -132,23 +132,44 @@ module.exports = function (models, modelName, details, attribute, toDrop, onlyDr
// Save the relation table as a new model in the scope // Save the relation table as a new model in the scope
// aiming to benefit of templates for the table such as // aiming to benefit of templates for the table such as
// `createTableIfNotExists` and `dropTable`. // `createTableIfNotExists` and `dropTable`.
models[relationTable] = {};
// Template: create the table for the `up` export if it doesn't exist. // Template: create the table for the `up` export if it doesn't exist.
// This adds a `up` logic for the relation table. // This adds a `up` logic for the relation table.
const tplTableUp = fs.readFileSync(path.resolve(__dirname, '..', '..', 'templates', 'builder', 'relations', 'belongsToMany.template'), 'utf8'); const tplTableUp = fs.readFileSync(path.resolve(__dirname, '..', '..', 'templates', 'builder', 'relations', 'belongsToMany.template'), 'utf8');
models[relationTable].up = _.unescape(_.template(tplTableUp)({ _.set(models, relationTable + '.up.others', _.unescape(_.template(tplTableUp)({
models: models, models: models,
tableName: relationTable, tableName: relationTable,
details: details, details: details,
relationship: relationship relationship: relationship
})); })));
// Template: drop the table for the `down` export. // Template: drop the table for the `down` export.
// This adds a `down` logic for the relation table. // This adds a `down` logic for the relation table.
const tplTableDown = fs.readFileSync(path.resolve(__dirname, '..', '..', 'templates', 'builder', 'tables', 'dropTable.template'), 'utf8'); const tplTableDown = fs.readFileSync(path.resolve(__dirname, '..', '..', 'templates', 'builder', 'tables', 'dropTable.template'), 'utf8');
models[relationTable].down = _.unescape(_.template(tplTableDown)({ _.set(models, relationTable + '.down.others', _.unescape(_.template(tplTableDown)({
tableName: relationTable tableName: relationTable
})));
const tplFKDown = fs.readFileSync(path.resolve(__dirname, '..', '..', 'templates', 'builder', 'columns', 'dropForeign.template'), 'utf8');
const tplSelectTableDown = fs.readFileSync(path.resolve(__dirname, '..', '..', 'templates', 'builder', 'tables', 'select', 'down.template'), 'utf8');
_.set(models, relationTable + '.attributes', {
fk: {
delete: {
drop: _.unescape(_.template(tplFKDown)({
attribute: details.attribute + '_' + details.column
})) + _.unescape(_.template(tplFKDown)({
attribute: relationship.attribute + '_' + relationship.column
}))
}
}
});
models[relationTable].down.drop = _.unescape(_.template(tplSelectTableDown)({
models: models,
tableName: relationTable,
attributes: models[relationTable].attributes,
toDrop: true
})); }));
} }
} }

2
packages/strapi-generate-migrations/templates/builder/columns/dropColumn-unique.template
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@ -1,3 +1,3 @@
// Delete the `<%= attribute %>` column. // Delete the `<%= attribute %>` column with unique constraint.
table.dropUnique('<%= attribute %>').dropColumn('<%= attribute %>') table.dropUnique('<%= attribute %>').dropColumn('<%= attribute %>')

3
packages/strapi-generate-migrations/templates/builder/columns/dropForeign.template Normal file
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@ -0,0 +1,3 @@
// Delete the foreign key on `<%= attribute %>` column.
table.dropForeign('<%= attribute %>')