README rewrite with basic documentation.

This commit is contained in:
Madeorsk 2022-08-01 14:48:07 +02:00
parent ff1d55da78
commit f8bbfe3b80
2 changed files with 251 additions and 2 deletions

240
README.md
View File

@ -1,3 +1,239 @@
# core
# Sharkitek Core
Sharkitek core models library.
## Introduction
Sharkitek is a Javascript / TypeScript library designed to ease development of client-side models.
With Sharkitek, you define the architecture of your models by applying decorators (which define their type) on your class properties.
Then, you can use the defined methods like `serialize`, `deserialize` or `serializeDiff`.
Sharkitek makes use of decorators as defined in the [TypeScript Reference](https://www.typescriptlang.org/docs/handbook/decorators.html).
Due to the way decorators work, you must always set a value to your properties when you declare them, even if this value is `undefined`.
```typescript
class Example extends Model
{
@Property(SNumeric)
@Identifier
id: number = undefined;
@Property(SString)
name: string = undefined;
}
```
## Examples
### Simple model definition
```typescript
/**
* A person.
*/
class Person extends Model
{
@Property(SNumeric)
@Identifier
id: number = undefined;
@Property(SString)
name: string = undefined;
@Property(SString)
firstName: string = undefined;
@Property(SString)
email: string = undefined;
}
```
**Important**: You _must_ set a value to all your defined properties. If there is no set value, the decorator will not
be applied instantly on object initialization and the deserialization will not work properly.
```typescript
/**
* An article.
*/
class Article extends Model
{
@Property(SNumeric)
@Identifier
id: number = undefined;
@Property(SString)
title: string = undefined;
@Property(SArray(SModel(Author)))
authors: Author[] = [];
@Property(SString)
text: string = undefined;
@Property(SDecimal)
evaluation: number = undefined;
}
```
## API
### Types
Types are defined by a class extending `Type`.
Sharkitek defines some basic types by default, in these classes:
- `StringType`: string in the model, string in the serialized object.
- `NumericType`: number in the model, number in the serialized object.
- `DecimalType`: number in the model, formatted string in the serialized object.
- `ArrayType`: array in the model, array in the serialized object.
- `ModelType`: instance of a specific class in the model, object in the serialized object.
When you are defining a Sharkitek property, you must provide its type by instantiating one of these classes.
```typescript
class Example extends Model
{
@Property(new StringType())
foo: string = undefined;
}
```
To ease the use of these classes and reduce read complexity, some constant variables and functions are defined in the library,
following a certain naming convention: "S{type_name}".
- `StringType` => `SString`
- `NumericType` => `SNumeric`
- `DecimalType` => `SDecimal`
- `ArrayType` => `SArray`
- `ModelType` => `SModel`
When the types require parameters, the constant is defined as a function. If there is no parameter, then a simple
variable is enough.
Type implementers should provide a corresponding variable or function for each defined type. They can even provide
multiple functions or constants when predefined parameters. (For example, we could define `SStringArray` which would
be a variable similar to `SArray(SString)`.)
```typescript
class Example extends Model
{
@Property(SString)
foo: string = undefined;
}
```
### Models
#### `serialize()`
Serialize the model.
Example:
```typescript
const serializedObject = model.serialize();
```
#### `deserialize(serializedObject)`
Deserialize the model.
Example:
```typescript
const model = (new TestModel()).deserialize({
id: 5,
title: "Hello World!",
users: [
{
id: 6,
name: "TEST",
},
],
});
```
#### `serializeDiff()`
Serialize the difference between current model state and original one.
Example:
```typescript
const model = (new TestModel()).deserialize({
id: 5,
title: "Hello World!",
users: [
{
id: 6,
name: "TEST",
},
],
});
model.title = "A new title for a new world";
const result = model.serializeDiff();
// if `id` is defined as the model identifier:
// result = { id: 5, title: "A new title for a new world" }
// if `id` is not defined as the model identifier:
// result = { title: "A new title for a new world" }
```
#### `resetDiff()`
Set current properties values as original values.
Example:
```typescript
const model = (new TestModel()).deserialize({
id: 5,
title: "Hello World!",
users: [
{
id: 6,
name: "TEST",
},
],
});
model.title = "A new title for a new world";
model.resetDiff();
const result = model.serializeDiff();
// if `id` is defined as the model identifier:
// result = { id: 5 }
// if `id` is not defined as the model identifier:
// result = {}
```
#### `save()`
Get difference between original values and current ones, then reset it.
Similar to call `serializeDiff()` then `resetDiff()`.
```typescript
const model = (new TestModel()).deserialize({
id: 5,
title: "Hello World!",
users: [
{
id: 6,
name: "TEST",
},
],
});
model.title = "A new title for a new world";
const result = model.save();
// if `id` is defined as the model identifier:
// result = { id: 5, title: "A new title for a new world" }
// if `id` is not defined as the model identifier:
// result = { title: "A new title for a new world" }
```

View File

@ -23,6 +23,19 @@ interface SharkitekMetadataInterface
type: Type<any, any>;
}
/**
* Class decorator for Sharkitek models.
*/
export function Sharkitek(constructor: Function)
{
/*return class extends (constructor as FunctionConstructor) {
constructor()
{
super();
}
};*/
}
/**
* Property decorator to define a Sharkitek model identifier.
*/