You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
|
|
// MySQL Schema Compiler
|
|
// -------
|
|
var inherits = require('inherits');
|
|
var SchemaCompiler = require('../../../schema/compiler');
|
|
var assign = require('lodash/object/assign');
|
|
|
|
function SchemaCompiler_MySQL(client, builder) {
|
|
SchemaCompiler.call(this, client, builder)
|
|
}
|
|
inherits(SchemaCompiler_MySQL, SchemaCompiler)
|
|
|
|
assign(SchemaCompiler_MySQL.prototype, {
|
|
|
|
// Rename a table on the schema.
|
|
renameTable: function(tableName, to) {
|
|
this.pushQuery('rename table ' + this.formatter.wrap(tableName) + ' to ' + this.formatter.wrap(to));
|
|
},
|
|
|
|
// Check whether a table exists on the query.
|
|
hasTable: function(tableName) {
|
|
this.pushQuery({
|
|
sql: 'show tables like ' + this.formatter.parameter(tableName),
|
|
output: function(resp) {
|
|
return resp.length > 0;
|
|
}
|
|
});
|
|
},
|
|
|
|
// Check whether a column exists on the schema.
|
|
hasColumn: function(tableName, column) {
|
|
this.pushQuery({
|
|
sql: 'show columns from ' + this.formatter.wrap(tableName) +
|
|
' like ' + this.formatter.parameter(column),
|
|
output: function(resp) {
|
|
return resp.length > 0;
|
|
}
|
|
});
|
|
}
|
|
|
|
})
|
|
|
|
module.exports = SchemaCompiler_MySQL;
|