sqfentity 1.2.0

sqfentity: ^1.2.0 copied to clipboard

example/main.dart

import 'package:flutter/material.dart';


// STEP 1: import sqfentity package.
import 'package:sqfentity_base/sqfentity_base.dart';
import 'package:sqfentity/sqfentity.dart';


// STEP 1: define your tables as shown in the example Classes below.
// Define the 'TableCategory' constant as SqfEntityTable.
const tableCategory = SqfEntityTable(
    tableName: 'category',
    primaryKeyName: 'id',
    primaryKeyType: PrimaryKeyType.integer_auto_incremental,
    useSoftDeleting: true,
    // when useSoftDeleting is true, creates a field named 'isDeleted' on the table, and set to '1' this field when item deleted (does not hard delete)
    modelName:
        null, // SqfEntity will set it to TableName automatically when the modelName (class name) is null
    // declare fields
    fields: [
      SqfEntityField('name', DbType.text),
      SqfEntityField('isActive', DbType.bool, defaultValue: true),
    ]);

// Define the 'TableProduct' constant as SqfEntityTable.
const tableProduct = SqfEntityTable(
    tableName: 'product',
    primaryKeyName: 'id',
    primaryKeyType: PrimaryKeyType.integer_auto_incremental,
    useSoftDeleting: true,
    fields: [
      SqfEntityField('name', DbType.text),
      SqfEntityField('description', DbType.text),
      SqfEntityField('price', DbType.real, defaultValue: 0),
      SqfEntityField('isActive', DbType.bool, defaultValue: true),
      SqfEntityFieldRelationship(
          parentTable: tableCategory,
          deleteRule: DeleteRule.CASCADE,
          defaultValue: '0'), // Relationship column for CategoryId of Product
      SqfEntityField('rownum', DbType.integer,
          sequencedBy:
              seqIdentity /*Example of linking a column to a sequence */),
      SqfEntityField('imageUrl', DbType.text)
    ]);

// Define the 'Todo' constant as SqfEntityTable.
const tableTodo = SqfEntityTable(
    tableName: 'todos',
    primaryKeyName: 'id',
    useSoftDeleting:
        false, // when useSoftDeleting is true, creates a field named 'isDeleted' on the table, and set to '1' this field when item deleted (does not hard delete)
    primaryKeyType: PrimaryKeyType.integer_unique,
    defaultJsonUrl:
        'https://jsonplaceholder.typicode.com/todos', // optional: to synchronize your table with json data from webUrl

    // declare fields
    fields: [
      SqfEntityField('userId', DbType.integer),
      SqfEntityField('title', DbType.text),
      SqfEntityField('completed', DbType.bool, defaultValue: false)
    ]);

// Define the 'identity' constant as SqfEntitySequence.
const seqIdentity = SqfEntitySequence(
  sequenceName: 'identity',
  maxValue:  10000, /* optional. default is max int (9.223.372.036.854.775.807) */
  //modelName: 'SQEidentity', 
                      /* optional. SqfEntity will set it to sequenceName automatically when the modelName is null*/
  //cycle : false,    /* optional. default is false; */
  //minValue = 0;     /* optional. default is 0 */
  //incrementBy = 1;  /* optional. default is 1 */
  // startWith = 0;   /* optional. default is 0 */
);

// STEP 2: Create your Database Model constant instanced from SqfEntityModel
// Note: SqfEntity provides support for the use of multiple databases. So you can create many Database Models and use them in the application.
@SqfEntityBuilder(myDbModel)
const myDbModel = SqfEntityModel(
    modelName: null,
    databaseName: 'sampleORM.db',
    // put defined tables into the tables list.
    databaseTables: [tableCategory, tableProduct, tableTodo],
    // put defined sequences into the sequences list.
    sequences: [seqIdentity],
    bundledDatabasePath:
        null // 'assets/sample.db' // This value is optional. When bundledDatabasePath is empty then EntityBase creats a new database when initializing the database
);

/* STEP 3: That's All.. 
--> Go Terminal Window and run command below
    flutter pub run build_runner build --delete-conflicting-outputs
  Note: After running the command Please check lib/model/model.g.dart 
  Enjoy.. Huseyin TOKPINAR
*/


void main(List<String> args) async {
  WidgetsFlutterBinding.ensureInitialized();
  
  // Run Entity Model samples
  // ATTENTION! when the software/app is started, you must check the database was it initialized.
  // If needed, initilizeDb method runs CREATE / ALTER TABLE query for you.
  final bool isInitialized = await MyDbModel().initializeDB();
  if (isInitialized == false) {
    // If the database is not initialized, something went wrong. Check DEBUG CONSOLE for alerts
    // TO DO
    return;
  }
}


class MyDbModel extends SqfEntityModelProvider{
}