@devbro/sql-generator/dist/SchemaGrammar.mjs.map

generic sql generator

{"version":3,"sources":["../src/SchemaGrammar.ts"],"sourcesContent":["import { Blueprint, Column } from './Blueprint';\nimport { Expression } from './Expression';\nimport { CompiledSql, Parameter } from './types';\n\nexport class SchemaGrammar {\n  toSql(blueprint: Blueprint): string {\n    let sql = 'create table ' + blueprint.tableName + ' (';\n    const columns = blueprint.columns\n      .map((v: Column) => {\n        return this.compileColumn(v);\n      })\n      .join(', ');\n\n    const primaryKeys = this.compilePrimaryKeys(blueprint.primaryKeys);\n    sql += [columns, primaryKeys].join(',') + ')';\n    return sql;\n  }\n\n  compileColumn(column: Column): string {\n    const rc = [`${column.columnName}`];\n\n    if (column.properties.type === 'string') {\n      rc.push('varchar(' + column.properties.length + ')');\n    } else if (column.properties.type === 'char') {\n      rc.push('char');\n    } else if (column.properties.type === 'boolean') {\n      rc.push('boolean');\n    } else if (column.properties.type === 'integer') {\n      rc.push('integer');\n    } else if (column.properties.type === 'text') {\n      rc.push('text');\n    } else if (column.properties.type === 'timestamp') {\n      rc.push('timestamp');\n    } else if (column.properties.type === 'serial') {\n      rc.push('serial');\n    } else if (column.properties.type === 'float') {\n      rc.push('float');\n    } else if (column.properties.type === 'double') {\n      rc.push('double precision');\n    } else if (column.properties.type === 'date') {\n      rc.push('date');\n    } else {\n      throw new Error('Unknown column type: ' + column.properties.type);\n    }\n\n    if (column.properties.nullable) {\n      rc.push('null');\n    } else {\n      rc.push('not null');\n    }\n\n    if (column.properties.unique) {\n      rc.push('unique');\n    }\n\n    if (column.properties.default !== null) {\n      rc.push('default ' + this.escape(column.properties.default));\n    }\n\n    return rc.join(' ');\n  }\n\n  escape(value: Parameter): string {\n    if (value === null || value === undefined) {\n      return 'null';\n    }\n\n    if (typeof value === 'number') {\n      return value.toString();\n    }\n\n    if (typeof value === 'boolean') {\n      return value ? 'true' : 'false';\n    }\n\n    if (value instanceof Date) {\n      return \"'\" + value.toISOString() + \"'\";\n    }\n\n    if (value instanceof Expression) {\n      return value.toCompiledSql().sql;\n    }\n\n    return \"'\" + value.replace(\"'\", \"\\\\'\") + \"'\";\n  }\n\n  compilePrimaryKeys(primaryKeys: string[]): string {\n    if (!primaryKeys.length) {\n      return '';\n    }\n\n    return 'primary key (' + primaryKeys.join(', ') + ')';\n  }\n\n  compileTables(schema: string | string[] | undefined = undefined): CompiledSql {\n    return {\n      sql:\n        'select c.relname as name, n.nspname as schema, pg_total_relation_size(c.oid) as size, ' +\n        \"obj_description(c.oid, 'pg_class') as comment from pg_class c, pg_namespace n \" +\n        \"where c.relkind in ('r', 'p') and n.oid = c.relnamespace and \" +\n        this.compileSchemaWhereClause(schema, 'n.nspname') +\n        ' order by n.nspname, c.relname',\n      bindings: [],\n    };\n  }\n\n  compileTableExists(tableName: string, schema: string = ''): CompiledSql {\n    return {\n      sql:\n        'select exists (select 1 from pg_class c, pg_namespace n where ' +\n        'n.nspname = ' +\n        (schema ? this.escape(schema) : 'current_schema()') +\n        \" and c.relname = $1 and c.relkind in ('r', 'p') and n.oid = c.relnamespace)\",\n      bindings: [tableName],\n    };\n  }\n\n  compileDropTable(tableName: string): CompiledSql {\n    return { sql: `drop table ${this.doubleQuoteString(tableName)}`, bindings: [] };\n  }\n\n  protected compileSchemaWhereClause(\n    schema: string | string[] | undefined,\n    column: string\n  ): string {\n    if (Array.isArray(schema) && schema.length > 0) {\n      return `${column} in (${this.quoteString(schema)})`;\n    } else if (schema && typeof schema === 'string') {\n      return `${column} = ${this.quoteString(schema)}`;\n    } else {\n      return `${column} <> 'information_schema' and ${column} not like 'pg\\\\_%'`;\n    }\n  }\n\n  protected quoteString(value: string | string[]): string {\n    if (Array.isArray(value)) {\n      return value.map((v) => `'${v.replace(/'/g, \"\\\\'\")}'`).join(', ');\n    }\n    return `'${value.replace(/'/g, \"\\\\'\")}'`;\n  }\n\n  protected doubleQuoteString(value: string | string[]): string {\n    if (Array.isArray(value)) {\n      return value.map((v) => this.doubleQuoteString(v)).join(', ');\n    }\n    return `\"${value.replace(/\"/g, '\\\\\"')}\"`;\n  }\n}\n"],"mappings":"AACA,SAAS,kBAAkB;AAGpB,MAAM,cAAc;AAAA,EACzB,MAAM,WAA8B;AAClC,QAAI,MAAM,kBAAkB,UAAU,YAAY;AAClD,UAAM,UAAU,UAAU,QACvB,IAAI,CAAC,MAAc;AAClB,aAAO,KAAK,cAAc,CAAC;AAAA,IAC7B,CAAC,EACA,KAAK,IAAI;AAEZ,UAAM,cAAc,KAAK,mBAAmB,UAAU,WAAW;AACjE,WAAO,CAAC,SAAS,WAAW,EAAE,KAAK,GAAG,IAAI;AAC1C,WAAO;AAAA,EACT;AAAA,EAEA,cAAc,QAAwB;AACpC,UAAM,KAAK,CAAC,GAAG,OAAO,UAAU,EAAE;AAElC,QAAI,OAAO,WAAW,SAAS,UAAU;AACvC,SAAG,KAAK,aAAa,OAAO,WAAW,SAAS,GAAG;AAAA,IACrD,WAAW,OAAO,WAAW,SAAS,QAAQ;AAC5C,SAAG,KAAK,MAAM;AAAA,IAChB,WAAW,OAAO,WAAW,SAAS,WAAW;AAC/C,SAAG,KAAK,SAAS;AAAA,IACnB,WAAW,OAAO,WAAW,SAAS,WAAW;AAC/C,SAAG,KAAK,SAAS;AAAA,IACnB,WAAW,OAAO,WAAW,SAAS,QAAQ;AAC5C,SAAG,KAAK,MAAM;AAAA,IAChB,WAAW,OAAO,WAAW,SAAS,aAAa;AACjD,SAAG,KAAK,WAAW;AAAA,IACrB,WAAW,OAAO,WAAW,SAAS,UAAU;AAC9C,SAAG,KAAK,QAAQ;AAAA,IAClB,WAAW,OAAO,WAAW,SAAS,SAAS;AAC7C,SAAG,KAAK,OAAO;AAAA,IACjB,WAAW,OAAO,WAAW,SAAS,UAAU;AAC9C,SAAG,KAAK,kBAAkB;AAAA,IAC5B,WAAW,OAAO,WAAW,SAAS,QAAQ;AAC5C,SAAG,KAAK,MAAM;AAAA,IAChB,OAAO;AACL,YAAM,IAAI,MAAM,0BAA0B,OAAO,WAAW,IAAI;AAAA,IAClE;AAEA,QAAI,OAAO,WAAW,UAAU;AAC9B,SAAG,KAAK,MAAM;AAAA,IAChB,OAAO;AACL,SAAG,KAAK,UAAU;AAAA,IACpB;AAEA,QAAI,OAAO,WAAW,QAAQ;AAC5B,SAAG,KAAK,QAAQ;AAAA,IAClB;AAEA,QAAI,OAAO,WAAW,YAAY,MAAM;AACtC,SAAG,KAAK,aAAa,KAAK,OAAO,OAAO,WAAW,OAAO,CAAC;AAAA,IAC7D;AAEA,WAAO,GAAG,KAAK,GAAG;AAAA,EACpB;AAAA,EAEA,OAAO,OAA0B;AAC/B,QAAI,UAAU,QAAQ,UAAU,QAAW;AACzC,aAAO;AAAA,IACT;AAEA,QAAI,OAAO,UAAU,UAAU;AAC7B,aAAO,MAAM,SAAS;AAAA,IACxB;AAEA,QAAI,OAAO,UAAU,WAAW;AAC9B,aAAO,QAAQ,SAAS;AAAA,IAC1B;AAEA,QAAI,iBAAiB,MAAM;AACzB,aAAO,MAAM,MAAM,YAAY,IAAI;AAAA,IACrC;AAEA,QAAI,iBAAiB,YAAY;AAC/B,aAAO,MAAM,cAAc,EAAE;AAAA,IAC/B;AAEA,WAAO,MAAM,MAAM,QAAQ,KAAK,KAAK,IAAI;AAAA,EAC3C;AAAA,EAEA,mBAAmB,aAA+B;AAChD,QAAI,CAAC,YAAY,QAAQ;AACvB,aAAO;AAAA,IACT;AAEA,WAAO,kBAAkB,YAAY,KAAK,IAAI,IAAI;AAAA,EACpD;AAAA,EAEA,cAAc,SAAwC,QAAwB;AAC5E,WAAO;AAAA,MACL,KACE,sOAGA,KAAK,yBAAyB,QAAQ,WAAW,IACjD;AAAA,MACF,UAAU,CAAC;AAAA,IACb;AAAA,EACF;AAAA,EAEA,mBAAmB,WAAmB,SAAiB,IAAiB;AACtE,WAAO;AAAA,MACL,KACE,gFAEC,SAAS,KAAK,OAAO,MAAM,IAAI,sBAChC;AAAA,MACF,UAAU,CAAC,SAAS;AAAA,IACtB;AAAA,EACF;AAAA,EAEA,iBAAiB,WAAgC;AAC/C,WAAO,EAAE,KAAK,cAAc,KAAK,kBAAkB,SAAS,CAAC,IAAI,UAAU,CAAC,EAAE;AAAA,EAChF;AAAA,EAEU,yBACR,QACA,QACQ;AACR,QAAI,MAAM,QAAQ,MAAM,KAAK,OAAO,SAAS,GAAG;AAC9C,aAAO,GAAG,MAAM,QAAQ,KAAK,YAAY,MAAM,CAAC;AAAA,IAClD,WAAW,UAAU,OAAO,WAAW,UAAU;AAC/C,aAAO,GAAG,MAAM,MAAM,KAAK,YAAY,MAAM,CAAC;AAAA,IAChD,OAAO;AACL,aAAO,GAAG,MAAM,gCAAgC,MAAM;AAAA,IACxD;AAAA,EACF;AAAA,EAEU,YAAY,OAAkC;AACtD,QAAI,MAAM,QAAQ,KAAK,GAAG;AACxB,aAAO,MAAM,IAAI,CAAC,MAAM,IAAI,EAAE,QAAQ,MAAM,KAAK,CAAC,GAAG,EAAE,KAAK,IAAI;AAAA,IAClE;AACA,WAAO,IAAI,MAAM,QAAQ,MAAM,KAAK,CAAC;AAAA,EACvC;AAAA,EAEU,kBAAkB,OAAkC;AAC5D,QAAI,MAAM,QAAQ,KAAK,GAAG;AACxB,aAAO,MAAM,IAAI,CAAC,MAAM,KAAK,kBAAkB,CAAC,CAAC,EAAE,KAAK,IAAI;AAAA,IAC9D;AACA,WAAO,IAAI,MAAM,QAAQ,MAAM,KAAK,CAAC;AAAA,EACvC;AACF;","names":[]}