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65 lines
1.5 KiB
JavaScript
65 lines
1.5 KiB
JavaScript
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var _ = require('lodash')
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var inherits = require('inherits')
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var EventEmitter = require('events').EventEmitter
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// Constructor for the builder instance, typically called from
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// `knex.builder`, accepting the current `knex` instance,
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// and pulling out the `client` and `grammar` from the current
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// knex instance.
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function SchemaBuilder(client) {
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this.client = client
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this._sequence = []
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this._debug = client.config && client.config.debug
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}
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inherits(SchemaBuilder, EventEmitter)
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// Each of the schema builder methods just add to the
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// "_sequence" array for consistency.
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_.each([
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'createTable',
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'createTableIfNotExists',
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'createSchema',
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'createSchemaIfNotExists',
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'dropSchema',
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'dropSchemaIfExists',
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'createExtension',
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'createExtensionIfNotExists',
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'dropExtension',
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'dropExtensionIfExists',
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'table',
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'alterTable',
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'hasTable',
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'hasColumn',
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'dropTable',
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'renameTable',
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'dropTableIfExists',
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'raw'
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], function(method) {
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SchemaBuilder.prototype[method] = function() {
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if (method === 'table') method = 'alterTable';
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this._sequence.push({
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method: method,
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args: _.toArray(arguments)
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});
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return this;
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}
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})
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require('../interface')(SchemaBuilder)
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SchemaBuilder.prototype.withSchema = function(schemaName) {
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this._schema = schemaName;
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return this;
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}
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SchemaBuilder.prototype.toString = function() {
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return this.toQuery()
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}
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SchemaBuilder.prototype.toSQL = function() {
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return this.client.schemaCompiler(this).toSQL()
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}
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module.exports = SchemaBuilder
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