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loopback-connector-mysql
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Refactor alter table 

Include fk with autoupdate/migrate

Some tests are failing due to timeout, looking into it
should check actuality of dataSource fails, looking into it

Fix actuality of ds test

Fix autoupdate test timeout

Fix requested changes

Fix to checkOnly for isActual
This commit is contained in:
ssh24 2017-03-15 16:57:59 -04:00
parent 04665277b7
commit a02047b643
1 changed files with 256 additions and 195 deletions
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433
lib/migration.js
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@ -71,41 +71,31 @@ function mixinMigration(MySQL, mysql) {
if (!err && fields && fields.length) {
//if we already have a definition, update this table
self.alterTable(model, fields, indexes, foreignKeys, function(err, changed, res) {
//check to see if there were any new foreign keys for this table.
//If so, we'll create them once all tables have been updated
if (!err && res && res.newFks && res.newFks.length) {
foreignKeyStatements.push(res.newFks);
}
self.alterTable(model, fields, indexes, foreignKeys, function(err, result) {
if (!err) {
self.addForeignKeys(model, function(err, result) {
done(err);
});
} else {
done(err);
}
});
} else {
//if there is not yet a definition, create this table
var res = self.createTable(model, function(err) {
self.createTable(model, function(err) {
if (!err) {
//get a list of the alter statements needed to add the defined foreign keys
var newFks = self.getForeignKeySQL(model, foreignKeys);
//check to see if there were any new foreign keys for this table.
//If so, we'll create them once all tables have been updated
if (newFks && newFks.length) {
foreignKeyStatements.push(self.getAlterStatement(model, newFks));
}
}
self.addForeignKeys(model, function(err, result) {
done(err);
});
} else {
done(err);
}
});
}
});
});
}, function(err) {
if (err) return cb(err);
//add any new foreign keys
async.each(foreignKeyStatements, function(addFkStmt, execDone) {
self.execute(addFkStmt, execDone);
}, function(err) {
cb(err);
});
return cb(err);
});
};
@ -166,50 +156,114 @@ function mixinMigration(MySQL, mysql) {
});
};
MySQL.prototype.getForeignKeySQL = function(model, actualFks) {
MySQL.prototype.getAddModifyColumns = function(model, actualFields) {
var sql = [];
var self = this;
var m = this.getModelDefinition(model);
var addFksSql = [];
var newFks = m.settings.foreignKeys || {};
var newFkNames = Object.keys(newFks).filter(function(name) {
return !!m.settings.foreignKeys[name];
});
//add new foreign keys
if (newFkNames.length) {
//narrow down our key names to only those that don't already exist
var oldKeyNames = actualFks.map(function(oldKey) { return oldKey.fkName; });
newFkNames.filter(function(key) { return !~oldKeyNames.indexOf(key); })
.forEach(function(key) {
var constraint = self.buildForeignKeyDefinition(model, key);
if (constraint) {
addFksSql.push('ADD ' + constraint);
}
});
}
return addFksSql;
sql = sql.concat(self.getColumnsToAdd(model, actualFields));
return sql;
};
MySQL.prototype.alterTable = function(model, actualFields, actualIndexes, actualFks, done, checkOnly) {
//if this is using an old signature, then grab the correct callback and check boolean
if ('function' == typeof actualFks && typeof done !== 'function') {
checkOnly = done || false;
done = actualFks;
}
MySQL.prototype.getColumnsToAdd = function(model, actualFields) {
var self = this;
var m = this.getModelDefinition(model);
var propNames = Object.keys(m.properties).filter(function(name) {
return !!m.properties[name];
});
var indexes = m.settings.indexes || {};
var indexNames = Object.keys(indexes).filter(function(name) {
return !!m.settings.indexes[name];
var sql = [];
propNames.forEach(function(propName) {
if (m.properties[propName] && self.id(model, propName)) return;
var found;
var colName = expectedColNameForModel(propName, m);
if (actualFields) {
actualFields.forEach(function(f) {
if (f.Field === colName) {
found = f;
}
});
}
if (found) {
actualize(colName, found);
} else {
sql.push('ADD COLUMN ' + self.client.escapeId(colName) + ' ' +
self.buildColumnDefinition(model, propName));
}
});
//add new foreign keys
var correctFks = m.settings.foreignKeys || {};
function actualize(propName, oldSettings) {
var newSettings = m.properties[propName];
if (newSettings && changed(newSettings, oldSettings)) {
var pName = self.client.escapeId(propName);
sql.push('CHANGE COLUMN ' + pName + ' ' + pName + ' ' +
self.buildColumnDefinition(model, propName));
}
}
function changed(newSettings, oldSettings) {
if (oldSettings.Null === 'YES') {
// Used to allow null and does not now.
if (!self.isNullable(newSettings)) {
return true;
}
}
if (oldSettings.Null === 'NO') {
// Did not allow null and now does.
if (self.isNullable(newSettings)) {
return true;
}
}
if (oldSettings.Type.toUpperCase() !==
self.buildColumnType(newSettings).toUpperCase()) {
return true;
}
return false;
}
return sql;
};
MySQL.prototype.getDropColumns = function(model, actualFields) {
var sql = [];
var self = this;
sql = sql.concat(self.getColumnsToDrop(model, actualFields));
return sql;
};
MySQL.prototype.getColumnsToDrop = function(model, actualFields) {
var self = this;
var fields = actualFields;
var sql = [];
var m = this.getModelDefinition(model);
var propNames = Object.keys(m.properties).filter(function(name) {
return !!m.properties[name];
});
// drop columns
if (fields) {
fields.forEach(function(f) {
var colNames = propNames.map(function expectedColName(propName) {
return expectedColNameForModel(propName, m);
});
var index = colNames.indexOf(f.Field);
var propName = index >= 0 ? propNames[index] : f.Field;
var notFound = !~index;
if (m.properties[propName] && self.id(model, propName)) return;
if (notFound || !m.properties[propName]) {
sql.push('DROP COLUMN ' + self.client.escapeId(f.Field));
}
});
}
return sql;
};
MySQL.prototype.addIndexes = function(model, actualIndexes) {
var self = this;
var m = this.getModelDefinition(model);
var propNames = Object.keys(m.properties).filter(function(name) {
return !!m.properties[name];
});
var indexNames = m.settings.indexes && Object.keys(m.settings.indexes).filter(function(name) {
return !!m.settings.indexes[name];
}) || [];
var sql = [];
var ai = {};
@ -227,71 +281,6 @@ function mixinMigration(MySQL, mysql) {
}
var aiNames = Object.keys(ai);
// change/add new fields
propNames.forEach(function(propName) {
if (m.properties[propName] && self.id(model, propName)) return;
var found;
var colName = expectedColName(propName);
if (actualFields) {
actualFields.forEach(function(f) {
if (f.Field === colName) {
found = f;
}
});
}
if (found) {
actualize(colName, found);
} else {
sql.push('ADD COLUMN ' + self.client.escapeId(colName) + ' ' +
self.buildColumnDefinition(model, propName));
}
});
//drop foreign keys for removed fields
if (actualFks) {
var removedFks = [];
actualFks.forEach(function(fk) {
var needsToDrop = false;
var newFk = correctFks[fk.fkName];
if (newFk) {
var fkCol = expectedColName(newFk.foreignKey);
var fkEntity = self.getModelDefinition(newFk.entity);
var fkRefKey = expectedColNameForModel(newFk.entityKey, fkEntity);
var fkRefTable = newFk.entity.name; //TODO check for mysql name
needsToDrop = fkCol != fk.fkColumnName ||
fkRefKey != fk.pkColumnName ||
fkRefTable != fk.pkTableName;
} else {
needsToDrop = true;
}
if (needsToDrop) {
sql.push('DROP FOREIGN KEY ' + fk.fkName);
removedFks.push(fk); //keep track that we removed these
}
});
//update out list of existing keys by removing dropped keys
actualFks = actualFks.filter(function(k) {
return removedFks.indexOf(k) == -1;
});
}
// drop columns
if (actualFields) {
actualFields.forEach(function(f) {
var colNames = propNames.map(expectedColName);
var index = colNames.indexOf(f.Field);
var propName = index >= 0 ? propNames[index] : f.Field;
var notFound = !~index;
if (m.properties[propName] && self.id(model, propName)) return;
if (notFound || !m.properties[propName]) {
sql.push('DROP COLUMN ' + self.client.escapeId(f.Field));
}
});
}
// remove indexes
aiNames.forEach(function(indexName) {
if (indexName === 'PRIMARY' ||
@ -347,7 +336,7 @@ function mixinMigration(MySQL, mysql) {
}
var found = ai[propName] && ai[propName].info;
if (!found) {
var colName = expectedColName(propName);
var colName = expectedColNameForModel(propName, m);
var pName = self.client.escapeId(colName);
var type = '';
var kind = '';
@ -412,30 +401,142 @@ function mixinMigration(MySQL, mysql) {
}
}
});
return sql;
};
//since we're passing the actualFks list to this,
//this code has be called after foreign keys have been dropped
//(in case we're replacing FKs)
var addFksSql = this.getForeignKeySQL(model, actualFks);
MySQL.prototype.getForeignKeySQL = function(model, actualFks) {
var self = this;
var m = this.getModelDefinition(model);
var addFksSql = [];
if (actualFks) {
var keys = Object.keys(actualFks);
for (var i = 0; i < keys.length; i++) {
var constraint = self.buildForeignKeyDefinition(model, keys[i]);
if (constraint) {
addFksSql.push('ADD ' + constraint);
}
}
}
return addFksSql;
};
MySQL.prototype.addForeignKeys = function(model, fkSQL, cb) {
var self = this;
var m = this.getModelDefinition(model);
if ((!cb) && ('function' === typeof fkSQL)) {
cb = fkSQL;
fkSQL = undefined;
}
if (!fkSQL) {
var newFks = m.settings.foreignKeys;
if (newFks)
fkSQL = self.getForeignKeySQL(model, newFks);
}
if (fkSQL && fkSQL.length) {
self.applySqlChanges(model, fkSQL, function(err, result) {
if (err) cb(err);
else
cb(null, result);
});
} else cb(null, {});
};
MySQL.prototype.dropForeignKeys = function(model, actualFks) {
var self = this;
var m = this.getModelDefinition(model);
var fks = actualFks;
var sql = [];
var correctFks = m.settings.foreignKeys || {};
//drop foreign keys for removed fields
if (fks && fks.length) {
var removedFks = [];
fks.forEach(function(fk) {
var needsToDrop = false;
var newFk = correctFks[fk.fkName];
if (newFk) {
var fkCol = expectedColNameForModel(newFk.foreignKey, m);
var fkEntity = self.getModelDefinition(newFk.entity);
var fkRefKey = expectedColNameForModel(newFk.entityKey, fkEntity);
var fkRefTable = newFk.entity.name; //TODO check for mysql name
needsToDrop = fkCol != fk.fkColumnName ||
fkRefKey != fk.pkColumnName ||
fkRefTable != fk.pkTableName;
} else {
needsToDrop = true;
}
if (needsToDrop) {
sql.push('DROP FOREIGN KEY ' + fk.fkName);
removedFks.push(fk); //keep track that we removed these
}
});
//update out list of existing keys by removing dropped keys
fks = actualFks.filter(function(k) {
return removedFks.indexOf(k) == -1;
});
}
return sql;
};
MySQL.prototype.getAlterStatement = function(model, statements) {
return statements.length ?
'ALTER TABLE ' + this.tableEscaped(model) + ' ' + statements.join(',\n') :
'';
};
MySQL.prototype.alterTable = function(model, actualFields, actualIndexes, actualFks, done, checkOnly) {
//if this is using an old signature, then grab the correct callback and check boolean
if ('function' == typeof actualFks && typeof done !== 'function') {
checkOnly = done || false;
done = actualFks;
}
var self = this;
var statements = [];
async.series([
function(cb) {
statements = self.getAddModifyColumns(model, actualFields);
cb();
},
function(cb) {
statements = statements.concat(self.getDropColumns(model, actualFields));
cb();
},
function(cb) {
statements = statements.concat(self.addIndexes(model, actualIndexes));
cb();
},
function(cb) {
statements = statements.concat(self.dropForeignKeys(model, actualFks));
cb();
},
], function(err, result) {
if (err) done(err);
//determine if there are column, index, or foreign keys changes (all require update)
if (sql.length || addFksSql.length) {
if (statements.length) {
//get the required alter statements
var alterStmt = self.getAlterStatement(model, sql);
var newFksStatement = self.getAlterStatement(model, addFksSql);
var stmtList = [alterStmt, newFksStatement].filter(function(s) { return s.length; });
var alterStmt = self.getAlterStatement(model, statements);
var stmtList = [alterStmt];
//set up an object to pass back all changes, changes that have been run,
//and foreign key statements that haven't been run
var retValues = {
statements: stmtList,
query: stmtList.join(';'),
newFks: newFksStatement,
};
//if we're running in read only mode OR if the only changes are foreign keys additions,
//then just return the object directly
if (checkOnly || !alterStmt.length) {
if (checkOnly) {
done(null, true, retValues);
} else {
//if there are changes in the alter statement, then execute them and return the object
@ -446,58 +547,7 @@ function mixinMigration(MySQL, mysql) {
} else {
done();
}
function actualize(propName, oldSettings) {
var newSettings = m.properties[propName];
if (newSettings && changed(newSettings, oldSettings)) {
var pName = self.client.escapeId(propName);
sql.push('CHANGE COLUMN ' + pName + ' ' + pName + ' ' +
self.buildColumnDefinition(model, propName));
}
}
function changed(newSettings, oldSettings) {
if (oldSettings.Null === 'YES') {
// Used to allow null and does not now.
if (!self.isNullable(newSettings)) {
return true;
}
}
if (oldSettings.Null === 'NO') {
// Did not allow null and now does.
if (self.isNullable(newSettings)) {
return true;
}
}
if (oldSettings.Type.toUpperCase() !==
self.buildColumnType(newSettings).toUpperCase()) {
return true;
}
return false;
}
function expectedColName(propName) {
return expectedColNameForModel(propName, m);
}
function expectedColNameForModel(propName, modelToCheck) {
var mysql = modelToCheck.properties[propName].mysql;
if (typeof mysql === 'undefined') {
return propName;
}
var colName = mysql.columnName;
if (typeof colName === 'undefined') {
return propName;
}
return colName;
}
};
MySQL.prototype.getAlterStatement = function(model, statements) {
return statements.length ?
'ALTER TABLE ' + this.tableEscaped(model) + ' ' + statements.join(',\n') :
'';
});
};
MySQL.prototype.buildForeignKeyDefinition = function(model, keyName) {
@ -850,4 +900,15 @@ function mixinMigration(MySQL, mysql) {
}
return columnType;
}
function expectedColNameForModel(propName, modelToCheck) {
var mysql = modelToCheck.properties[propName].mysql;
if (typeof mysql === 'undefined') {
return propName;
}
var colName = mysql.columnName;
if (typeof colName === 'undefined') {
return propName;
}
return colName;
}
}