Ferreiro

Automatically generate your codes based on any database: postgres, mysql, mssql or sqlite. Through a relational database you can automatically generate the development files:

• Models
• Forms
• Sql's
• Anything you want

Get Started

• Install
• Set up the environment
• Generate the first codes
  • Examples
    • Create table named files containing information about them
    • Create file containing the name of the tables and their fields
    • Sending extra information to the template:
    • Create first javascript helper

Get Started

Install

Node Js v10 or higher installation required

Globally install the package:

npm install ferreiro -g

Run the command below to verify the installation:

ferreiro --help

The command should display the list of options:

ferreiro --help
Usage: ferreiro [options]

Options:
  --genenv                                      Generate env file in root path
  --dialect                                     Select dialect postgres, mysql or mssql
  --database <name>                             Name of database
  --schema <schema name>                        schema
  --host <host>                                 Host of database
  --port <port>                                 Port number
  --user  <host>                                User of database
  --pw                                          Password of database
  --env  <path>                                 User of database
  --tables <table1, table2, ...>                tables  of db
  --skipTables <table1, table2, ...>            skip tables of db
  --template <path>                             path of template generate files
  --overwriteFile <true|false (default false)>  overwrite file in out dir
  --dbug <true|false>                           Show dbug logs
  --outDir <path>                               path of generated files
  -h, --help                                    output usage information

Set up the environment

Run the command below to create the environment configuration file:

ferreiro --createenv

Configure o arquivo .env-gen.

#FERREIRO ENV VARIABLES
dialect = [postgres, mysql, mssql or sqlite]
database = [...name of database]
host = 127.0.0.1
pass = [..pass]
port = [..set a port]
schema = [..schema only in pg]
user = [..set user]

Generate the first codes

Ferreiro is divided into two parts:

• Core: Analyzes the data in the database and passes the template as its body
• Template: Analyzes the data coming from the core to write files depending on the logic of the template

All logic of the template is written using the tool handlebarsjs, for more information see the documentation of this tool.

Rest assured, you will understand everything through practical examples.

Examples

Create table named files containing information about them

Create a folder with the name of your choice, this folder will contain all files related to the template. In our case the folder name will be: new-template Inside the folder create a folder with the name of example01: In examble01/ create file named example01/index.hbs content:

{{#each this.tableData}}
#begin_file
{{fileName '' (camelcase this.tablename true) '.txt'}}
Name of table {{this.tablename}}

Fields: 
{{#each this.fields}}
Name: {{this.name}}
    type: {{this.type}}
    allowNull: {{this.allowNull}}
    defaultValue: {{this.defaultValue}}
    comment: {{this.comment}}
    primaryKey: {{this.primaryKey}}
    isIdentity: {{this.isIdentity}}
    identity: {{this.identity}}
    isPrimaryKey: {{this.isPrimaryKey}}
    isUniqueKey: {{this.isUniqueKey}}
    isSerialKey: {{this.isSerialKey}} (only pg)

    isForeignKey: {{this.isForeignKey}}
    {{#if this.isForeignKey}}
    Fk Information:
        constraint_name: {{this.foreignKey.constraint_name}}
        source_schema: {{this.foreignKey.source_schema}}
        source_table: {{this.foreignKey.source_table}}
        source_column: {{this.foreignKey.source_column}}
        target_schema: {{this.foreignKey.target_schema}}
        target_table: {{this.foreignKey.target_table}}
        target_column: {{this.foreignKey.target_column}}
        contype: {{this.foreignKey.contype}}
        extra: {{this.foreignKey.extra}}
    {{/if}}
---------------------
{{/each}}
{{/each}}

Generate the example template and see the output that will be sent to the directory informed in "outDir"

ferreiro --template ./ --outDir ./build-gen --env .env-gen --overwriteFile true

    Loaded 93 tables of db TEST
    Loaded undefined config file
    Loaded 0 script file(s)
    Find 1 file(s) in /home/user/new-example template.
    Generated 93 file(s) in /new-example/build-gen.

The command will generate the files based on your database, inside the build-gen folder.

Create file containing the name of the tables and their fields

Create another example ./example02/index.hbs containing:

    #begin_file
    {{fileName 'lists.txt'}}
    {{#each this.tableData}}
    {{this.tablename}}
     Fields: {{#each this.fields}}{{this.name}},{{/each}}
    {{/each}}

ferreiro --template ./ --outDir ./build-gen --env .env-gen --overwriteFile true

Sending extra information to the template

To send extra information you need to create a .json file from the root of the template, see the example:

create file ./example03/config.json

containing:

{
	"data": {
		"extra-str": "Hello extra info",
		"extra-obj": {
			"name": "Leonardo",
			"age": "26"
		},
		"extra-array": [{
			"name": "Teste"
		}, {
			"name": "Teste2"
		}]
	}
}

create file ./example03/index.hbs containing:

    #begin_file
    {{fileName 'test-extra.txt'}}
    Extra string: {{this.data.extra-str}}
    
    Extra obj:
     name: {{this.data.extra-obj.name}}
     age: {{this.data.extra-obj.age}}
    
     
    Extra array:
    {{#each this.data.extra-array}}
    name: {{this.name}}
    {{/each}}

ferreiro --template ./ --outDir ./build-gen --env .env-gen --overwriteFile true

Create first javascript helper

Create another example ./example04/helper.js containing:

module.exports = (Handlebars) => {
    Handlebars.registerHelper('sum', function (val1, val2) {
        return Number(val1) + Number(val2);
    });

    Handlebars.registerHelper('concat', function (val1, val2) {
        return val1 + val2;
    });

    Handlebars.registerHelper('autor', function (val1, val2) {
        return "Ferreiro";
    });
}

Create hbs file ./example04/index.js containing:

    #begin_file
    {{fileName 'test-helper.txt'}}
    Sum 1: {{sum 40 20}}
    Sum 2: {{sum 15 15}}
    
    Name: {{concat 'Ferreiro' '-v1'}}
    
    by {{autor}}
	

Build:

ferreiro --template ./ --outDir ./build-gen --env .env-gen --overwriteFile true

after template build:

    Sum 1: 60
    Sum 2: 30
    
    Name: Ferreiro-v1
    
    by Ferreiro
    

See more about helpers at Handlebars Helpers

Default helpers

upper [string]

upper case of text

lower [string]

lower case of text

exists [val]

return true if val !== undefined && val !== null

raw-helper

use to template contains {{ see:

{{{{raw-helper}}}} 
{{goku!}}
{{{{/raw-helper}}}}

build to

{{goku!}}

keys [obs]

return Object.keys(obj)

camelcase [string] [boolean pascalCase (default true)]

camelcase lib see: Camelcase

date

return new Date();

negate [arg]

return !arg;

ifequal [comp1] [comp2]

return comp1 === comp2;

arrayContainString [arr] [value]

return  arr.findIndex(el  =>  el === value) !== -1;

fileName [...args]

set a file name ...

set [name] [value]

create template variable

example:

#begin_file
{{fileName 'test.txt'}}
{{set 'age' '26'}}
{{set 'name' 'Leonardo'}}
Name: {{get 'name'}}
Age: {{get 'age'}}

build to:

Name: Leonardo
Age: 26

Special Thank's

• TypeGraphql
• RobinBuschmann/sequelize-typescript
• SequelizeAuto
• Sequelize
• Commander
• dotenv
• handlebars
• lodash
• mkdirp