add mapper builders
still needs all mapper versions but has list, create, and count working
This commit is contained in:
@ -1,35 +1,44 @@
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import {
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SystemDef,
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ViewDef
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BelongsToDef,
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ColumnDef,
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Filter, JoinDef, Order,
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SystemDef, TableDef,
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EndpointDef, ComponentDef, ColumnRef
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} from '../systemGenService';
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import * as path from 'path';
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import * as fs from 'fs';
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import pluralize from 'pluralize';
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const ncp = require('ncp').ncp;
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export function createViews(systemDef: SystemDef) {
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let viewsPromises = [];
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for (let i in systemDef.views) {
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viewsPromises.push(createComponent(systemDef.views[i], systemDef.name));
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for (let i in systemDef.components) {
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viewsPromises.push(createComponent(systemDef.components[i], systemDef));
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}
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return Promise.all(viewsPromises);
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}
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function createComponent(view: ViewDef, outDir: string) {
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let componentPromise = new Promise((componentResolve, componentReject) => {
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ncp(path.join(process.cwd(), 'frame', 'src', 'components', '{{component}}'), path.join(process.cwd(), outDir, 'src', 'components', view.component), (err: any) => {
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function createComponent(component: ComponentDef, systemDef: SystemDef) {
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let componentPromise = new Promise<void>((componentResolve, componentReject) => {
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ncp(path.join(process.cwd(), 'frame', 'src', 'components', '{{component}}'), path.join(process.cwd(), systemDef.name, 'src', 'components', component.component), (err: any) => {
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if (err) {
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console.log(err);
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} else {
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let mapperPromise = initializeComponentFile(path.join(process.cwd(), outDir, 'src', 'components', view.component, '{{component}}Mapper.ets'), path.join(process.cwd(), outDir, 'src', 'components', view.component, `${view.component}Mapper.ts`), view.component, outDir);
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let routesPromise = initializeComponentFile(path.join(process.cwd(), outDir, 'src', 'components', view.component, '{{component}}Routes.ets'), path.join(process.cwd(), outDir, 'src', 'components', view.component, `${view.component}Routes.ts`), view.component, outDir);
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addInitializeRoutesCode(view.component, outDir);
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let serviceFileLocation: string = path.join(process.cwd(), outDir, 'src', 'components', view.component, `${view.component}Service.ts`);
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let servicePromise = initializeComponentFile(path.join(process.cwd(), outDir, 'src', 'components', view.component, '{{component}}Service.ets'), serviceFileLocation, view.component, outDir);
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addInitializeServiceCode(view.component, outDir);
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let mapperPromise = initializeComponentFile(path.join(process.cwd(), systemDef.name, 'src', 'components', component.component, '{{component}}Mapper.ets'), path.join(process.cwd(), systemDef.name, 'src', 'components', component.component, `${component.component}Mapper.ts`), component.component, systemDef.name);
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for (let i in component.endpoints) {
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mapperPromise = mapperPromise.then(() => {
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return insertMapperCode(component.endpoints[i], systemDef.name);
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});
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}
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let routesPromise = initializeComponentFile(path.join(process.cwd(), systemDef.name, 'src', 'components', component.component, '{{component}}Routes.ets'), path.join(process.cwd(), systemDef.name, 'src', 'components', component.component, `${component.component}Routes.ts`), component.component, systemDef.name);
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addInitializeRoutesCode(component.component, systemDef.name);
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let serviceFileLocation: string = path.join(process.cwd(), systemDef.name, 'src', 'components', component.component, `${component.component}Service.ts`);
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let servicePromise = initializeComponentFile(path.join(process.cwd(), systemDef.name, 'src', 'components', component.component, '{{component}}Service.ets'), serviceFileLocation, component.component, systemDef.name);
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addInitializeServiceCode(component.component, systemDef.name);
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Promise.all([mapperPromise, routesPromise, servicePromise]).then(() => {
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console.log(`success creating component ${view.component}`);
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console.log(`success creating component ${component.component}`);
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componentResolve();
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});
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}
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@ -39,7 +48,7 @@ function createComponent(view: ViewDef, outDir: string) {
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}
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function initializeComponentFile(sourceFile: string, destinationFile: string, component: string, outDir: string) {
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let filePromise = new Promise((resolve, reject) => {
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let filePromise = new Promise<void>((resolve, reject) => {
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fs.rename(sourceFile, destinationFile, (err: any) => {
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let fileContents = fs.readFileSync(destinationFile, 'utf8');
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var uppercaseFirstLetterComponentName = uppercaseFirstLetter(component);
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@ -81,6 +90,207 @@ function addInitializeRoutesCode(component: string, outDir: string) {
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fs.writeFileSync(fileLocation, newRoutesFile, 'utf8');
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}
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function insertMapperCode(view: EndpointDef, outDir: string): Promise<void> {
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const filePromise: Promise<void> = new Promise<void>((resolve) => {
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const separator: string = `// SYSTEM-BUILDER-${view.component}-mapper`;
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let fileLocation = path.join(process.cwd(), outDir, 'src', 'components', view.component, `${view.component}Mapper.ts`);
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let initMapperFile: string = fs.readFileSync(fileLocation, 'utf8');
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let parts = initMapperFile.split(separator);
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// TODO: add mapper code here
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parts[0] = parts[0] + createMapperFunc(view);
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let newMapperFile = parts.join(separator);
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fs.writeFileSync(fileLocation, newMapperFile, 'utf8');
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resolve();
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});
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return filePromise;
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}
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function createMapperFunc(view: EndpointDef): string {
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let func: string = '';
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let funcName: string = '';
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if (view.type.indexOf('list') !== -1 || view.type.indexOf('count') !== -1) {
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func = buildGetList(view);
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} else if (view.type.indexOf('item') !== -1) {
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funcName = `get${uppercaseFirstLetter(view.component)}`;
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} else if (view.type.indexOf('update') !== -1) {
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funcName = `update${uppercaseFirstLetter(view.component)}`;
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} else if (view.type.indexOf('create') !== -1) {
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func = buildCreateFunc(view);
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}
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return func;
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}
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function buildCreateFunc(view: EndpointDef): string {
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let func: string = '';
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let funcName = `create${uppercaseFirstLetter(view.component)}`;
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let query: string = `INSERT INTO ${view.table} SET `;
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let requiredQueryValues: string = '';
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let optionalValuesCode: string = '';
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for (let i in view.columns) {
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let c: ColumnRef = view.columns[i];
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if (c.required) {
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if (!query.endsWith('SET ')) {
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query = query + `, `;
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}
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query = query + `${c.table}.${c.name} = ?`;
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if (requiredQueryValues.length) {
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requiredQueryValues = requiredQueryValues + `, `;
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}
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requiredQueryValues = requiredQueryValues + `params.${c.param}`;
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} else {
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optionalValuesCode = optionalValuesCode + `
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if (params.${c.param}) {
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query = query + ', ${c.table}.${c.name} = ?';
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queryValues.push(params.${c.param});
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}
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`;
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}
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}
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func = `
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public ${funcName}(params: {[key: string]: string}) {
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let query: string = '${query}';
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let queryValues: string[] = [${requiredQueryValues}];
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// optional params?
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${optionalValuesCode}
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return super.runQuery(query, [...queryValues]);
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}
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`;
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return func;
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}
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function buildGetList(view: EndpointDef): string {
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// TODO: optionally allow a raw query definition with predefined params
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// This would be so much simpler and easy if it were just the queries wanted
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let func: string = '';
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let funcName: string = '';
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let columns: string = view.type === 'count' ? `count(*)` : `${view.component}.${view.component}_id, ${view.columns.map(c => `${c.table}.${c.name}`).join(', ')}`;
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let queryValues: string = '';
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let query: string = '';
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let tables: string = view.join?.length ? buildJoin(view) : `${view.table}`;
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let filters: string = '';
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funcName = `get${pluralize(uppercaseFirstLetter(view.component))}` + (view.type === 'count' ? 'Count' : '');
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let requiredFilterStrings = [];
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let requiredQueryValues = '';
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let optionalFilterParts = '';
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if (view.filters) {
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for (let i in view.filters) {
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let f: Filter = view.filters[i];
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if (f.required) {
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requiredFilterStrings.push(`${f.column.table}.${f.column.name} ${f.comparison} ?`); // e.g. 'table.id = ?'
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if (requiredQueryValues.length) {
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requiredQueryValues = requiredQueryValues + `, `;
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}
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requiredQueryValues = requiredQueryValues + `params.${f.param}`;
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} else {
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/* e.g.
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if (eventLog.app) {
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query = query + ', app = ?';
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queryValues.push(eventLog.app);
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}
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*/
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optionalFilterParts = optionalFilterParts + `
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if (params.${f.param}) {
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query = query + ' AND ${f.column.table}.${f.column.name} ${f.comparison} ?';
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queryValues.push(params.${f.param});
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}`;
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}
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}
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filters = ` WHERE ${requiredFilterStrings.join(' AND ')}`;
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}
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query = `SELECT ${columns} FROM ${tables}${filters}`;
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let orderByCode = '';
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if (view.orderBy) {
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orderByCode = `
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query = query + '${buildOrderBy(view)}';
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`;
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}
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let funcParams = 'params: {[key: string]: string}, offset: number, limit: number';
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let limitOrderCode = `query = query + ' LIMIT ?, ?';
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queryValues.push(offset.toString(10));
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queryValues.push(limit.toString(10));
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${orderByCode}`;
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if (view.type === 'count') {
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funcParams = 'params: {[key: string]: string}';
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limitOrderCode = ``;
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}
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func = `
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public ${funcName}(${funcParams}) {
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let query: string = '${query}';
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let queryValues: string[] = [${requiredQueryValues}];
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// optional params?
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${optionalFilterParts}
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${limitOrderCode}
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return super.runQuery(query, [...queryValues]);
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}
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`;
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return func;
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}
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function buildJoin(view: EndpointDef): string {
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if (view.join?.length) {
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let join = `${view.table}`;
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for (let i in view.join) {
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let j: JoinDef = view.join[i];
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join = join + ` JOIN ${j.table} ON ${j.on.left.table}.${j.on.left.name} = ${j.on.right.table}.${j.on.right.name}`;
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}
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return join;
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}
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return '';
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}
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function buildOrderBy(view: EndpointDef): string {
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let orderBy: string = '';
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if (view.orderBy?.length) {
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orderBy = orderBy + ' ORDER BY ';
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for (let i in view.orderBy) {
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let order: Order = view.orderBy[i];
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if (parseInt(i) !== 0) {
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orderBy = orderBy + ', ';
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}
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orderBy = orderBy + `${order.column.table}.${order.column.name} ${order.direction}`;
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}
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}
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return orderBy;
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}
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function tableHasColumn(tableName: string, column: string, sysDef: SystemDef): boolean {
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let answer: boolean = false;
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for (let i in sysDef.storage.tables) {
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let table: TableDef = sysDef.storage.tables[i];
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if (table.name === tableName) {
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for (let j in table.columns) {
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let c: ColumnDef = table.columns[j];
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if (column === c.name) {
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answer = true;
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break;
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}
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}
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if (!answer && table.relations.length) {
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for (let k in table.columns) {
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let r: BelongsToDef = table.relations[k];
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if (column === `${r.table}_id`) {
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answer = true;
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break;
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}
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}
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}
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}
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if (answer) {
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break;
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}
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}
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return answer;
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}
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function uppercaseFirstLetter(input: string)
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{
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return input.charAt(0).toUpperCase() + input.slice(1);
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