1617807932
I share a simple trick to save gas inside your smart contracts. The core idea is that access to memory is cheaper than access to state variables.
#blockchain
1610429951
Smart contracts is a digital code stored in a blockchain and automatically executes when predetermined terms and conditions are met. In Simple terms, they are programs that run by the setup of the people who developed them.They are designed to facilitate, verify, and execute a digital contract between two parties without the involvement of third parties.
Greater efficiency and speed
Accuracy and transparency
Trust
Robust Security
Independent verification
Advanced data safety
Distributed ledger
Ease of use
Open source technology
Better flexibility
Easy integration
Improved tractability
Today Smart contracts are used in various platforms such as supply-chain management,cross-border financial transactions,document management,enforceability and more. Here are the Sectors where smart contracts plays a huge role ,
There are a few Important things that you need to consider before you develop a Smart Contract,
Ask Yourself -
I hope this blog was helpful. We think this is the right time for companies to invest in building a blockchain powered Smart Contracts as Blockchain technology and the ecosystem around it is changing fast. If you’re thinking about building a Smart Contract but not sure where to start, contact us, we’re happy to provide free suggestions about how blockchain’s Smart Contracts may fit into your business.
We Employcoder Leading IT Outsourcing Company with a team of Smart Contract Experts. Hire Smart Contract Developers from us who can code bug-free, scalable, innovative, fully-functional smart contracts for your business and make your business or enterprise eye-catchy & trutworthy among the people in the digital globe.
#hire smart contract developers #smart contract developer #smart contract development #smart contract development services, #smart contract development company, #smart contract programmers
1607516513
We (Codezeros) are Smart Contract Development Company in Washington. We provide the complete solution for smart contracts like smart contract architecture, design & development, auditing & optimization. We have experienced developers who are expert in developing smart contracts as well as DApp development, pitch deck development, and many other services related to Blockchain Technology.
#smart contract creation #smart contract company #blockchain smart contract #smart contract development #smart contract service provider #smart contract development company
1659500100
Form objects decoupled from your models.
Reform gives you a form object with validations and nested setup of models. It is completely framework-agnostic and doesn't care about your database.
Although reform can be used in any Ruby framework, it comes with Rails support, works with simple_form and other form gems, allows nesting forms to implement has_one and has_many relationships, can compose a form from multiple objects and gives you coercion.
Reform is part of the Trailblazer framework. Full documentation is available on the project site.
Temporary note: Reform 2.2 does not automatically load Rails files anymore (e.g. ActiveModel::Validations
). You need the reform-rails
gem, see Installation.
Forms are defined in separate classes. Often, these classes partially map to a model.
class AlbumForm < Reform::Form
property :title
validates :title, presence: true
end
Fields are declared using ::property
. Validations work exactly as you know it from Rails or other frameworks. Note that validations no longer go into the model.
Forms have a ridiculously simple API with only a handful of public methods.
#initialize
always requires a model that the form represents.#validate(params)
updates the form's fields with the input data (only the form, not the model) and then runs all validations. The return value is the boolean result of the validations.#errors
returns validation messages in a classic ActiveModel style.#sync
writes form data back to the model. This will only use setter methods on the model(s).#save
(optional) will call #save
on the model and nested models. Note that this implies a #sync
call.#prepopulate!
(optional) will run pre-population hooks to "fill out" your form before rendering.In addition to the main API, forms expose accessors to the defined properties. This is used for rendering or manual operations.
In your controller or operation you create a form instance and pass in the models you want to work on.
class AlbumsController
def new
@form = AlbumForm.new(Album.new)
end
This will also work as an editing form with an existing album.
def edit
@form = AlbumForm.new(Album.find(1))
end
Reform will read property values from the model in setup. In our example, the AlbumForm
will call album.title
to populate the title
field.
Your @form
is now ready to be rendered, either do it yourself or use something like Rails' #form_for
, simple_form
or formtastic
.
= form_for @form do |f|
= f.input :title
Nested forms and collections can be easily rendered with fields_for
, etc. Note that you no longer pass the model to the form builder, but the Reform instance.
Optionally, you might want to use the #prepopulate!
method to pre-populate fields and prepare the form for rendering.
After form submission, you need to validate the input.
class SongsController
def create
@form = SongForm.new(Song.new)
#=> params: {song: {title: "Rio", length: "366"}}
if @form.validate(params[:song])
The #validate
method first updates the values of the form - the underlying model is still treated as immutuable and remains unchanged. It then runs all validations you provided in the form.
It's the only entry point for updating the form. This is per design, as separating writing and validation doesn't make sense for a form.
This allows rendering the form after validate
with the data that has been submitted. However, don't get confused, the model's values are still the old, original values and are only changed after a #save
or #sync
operation.
After validation, you have two choices: either call #save
and let Reform sort out the rest. Or call #sync
, which will write all the properties back to the model. In a nested form, this works recursively, of course.
It's then up to you what to do with the updated models - they're still unsaved.
The easiest way to save the data is to call #save
on the form.
if @form.validate(params[:song])
@form.save #=> populates album with incoming data
# by calling @form.album.title=.
else
# handle validation errors.
end
This will sync the data to the model and then call album.save
.
Sometimes, you need to do saving manually.
Reform allows default values to be provided for properties.
class AlbumForm < Reform::Form
property :price_in_cents, default: 9_95
end
Calling #save
with a block will provide a nested hash of the form's properties and values. This does not call #save
on the models and allows you to implement the saving yourself.
The block parameter is a nested hash of the form input.
@form.save do |hash|
hash #=> {title: "Greatest Hits"}
Album.create(hash)
end
You can always access the form's model. This is helpful when you were using populators to set up objects when validating.
@form.save do |hash|
album = @form.model
album.update_attributes(hash[:album])
end
Reform provides support for nested objects. Let's say the Album
model keeps some associations.
class Album < ActiveRecord::Base
has_one :artist
has_many :songs
end
The implementation details do not really matter here, as long as your album exposes readers and writes like Album#artist
and Album#songs
, this allows you to define nested forms.
class AlbumForm < Reform::Form
property :title
validates :title, presence: true
property :artist do
property :full_name
validates :full_name, presence: true
end
collection :songs do
property :name
end
end
You can also reuse an existing form from elsewhere using :form
.
property :artist, form: ArtistForm
Reform will wrap defined nested objects in their own forms. This happens automatically when instantiating the form.
album.songs #=> [<Song name:"Run To The Hills">]
form = AlbumForm.new(album)
form.songs[0] #=> <SongForm model: <Song name:"Run To The Hills">>
form.songs[0].name #=> "Run To The Hills"
When rendering a nested form you can use the form's readers to access the nested forms.
= text_field :title, @form.title
= text_field "artist[name]", @form.artist.name
Or use something like #fields_for
in a Rails environment.
= form_for @form do |f|
= f.text_field :title
= f.fields_for :artist do |a|
= a.text_field :name
validate
will assign values to the nested forms. sync
and save
work analogue to the non-nested form, just in a recursive way.
The block form of #save
would give you the following data.
@form.save do |nested|
nested #=> {title: "Greatest Hits",
# artist: {name: "Duran Duran"},
# songs: [{title: "Hungry Like The Wolf"},
# {title: "Last Chance On The Stairways"}]
# }
end
The manual saving with block is not encouraged. You should rather check the Disposable docs to find out how to implement your manual tweak with the official API.
Very often, you need to give Reform some information how to create or find nested objects when validate
ing. This directive is called populator and documented here.
Add this line to your Gemfile:
gem "reform"
Reform works fine with Rails 3.1-5.0. However, inheritance of validations with ActiveModel::Validations
is broken in Rails 3.2 and 4.0.
Since Reform 2.2, you have to add the reform-rails
gem to your Gemfile
to automatically load ActiveModel/Rails files.
gem "reform-rails"
Since Reform 2.0 you need to specify which validation backend you want to use (unless you're in a Rails environment where ActiveModel will be used).
To use ActiveModel (not recommended because very out-dated).
require "reform/form/active_model/validations"
Reform::Form.class_eval do
include Reform::Form::ActiveModel::Validations
end
To use dry-validation (recommended).
require "reform/form/dry"
Reform::Form.class_eval do
feature Reform::Form::Dry
end
Put this in an initializer or on top of your script.
Reform allows to map multiple models to one form. The complete documentation is here, however, this is how it works.
class AlbumForm < Reform::Form
include Composition
property :id, on: :album
property :title, on: :album
property :songs, on: :cd
property :cd_id, on: :cd, from: :id
end
When initializing a composition, you have to pass a hash that contains the composees.
AlbumForm.new(album: album, cd: CD.find(1))
Reform comes many more optional features, like hash fields, coercion, virtual fields, and so on. Check the full documentation here.
Reform is part of the Trailblazer project. Please buy my book to support the development and learn everything about Reform - there's two chapters dedicated to Reform!
By explicitly defining the form layout using ::property
there is no more need for protecting from unwanted input. strong_parameter
or attr_accessible
become obsolete. Reform will simply ignore undefined incoming parameters.
Temporary note: This is the README and API for Reform 2. On the public API, only a few tiny things have changed. Here are the Reform 1.2 docs.
Anyway, please upgrade and report problems and do not simply assume that we will magically find out what needs to get fixed. When in trouble, join us on Gitter.
Full documentation for Reform is available online, or support us and grab the Trailblazer book. There is an Upgrading Guide to help you migrate through versions.
Great thanks to Blake Education for giving us the freedom and time to develop this project in 2013 while working on their project.
Author: trailblazer
Source code: https://github.com/trailblazer/reform
License: MIT license
1606811633
With the advent of smart contracts, it has become possible for every business to secure its data and to determine success. It is a decentralized solution that enables you to do many tasks while executing in the most optimal manner. All the entrepreneurs and business owners who have adopted this mechanism have received great results. In order to access this service for your company, you need to team up with a smart contract development company. By doing this, you enhance the power of your solution and make things very seamless.
A smart contract enables you to achieve various feats that seem unfathomable. Also, you get to protect the information of your enterprise in the best possible manner. When you have the power to expand your operation, you should be wise enough to choose the most appropriate solution. There are times when you have to think of something exemplary, it also gives you more about the perfection of the tools. At such a time, you need to have a proper understanding of the features and get things planned in a permanent fashion.
It does not matter which domain you are related to, you get to think about the possible solutions from every domain. Also, you get to manage various other tasks that seem very difficult otherwise. Before you introduce this ledger-based framework in your firm, you need to ready for the outcomes. Every time you come across a decentralized network, you start to pave way for something more dynamic. This gives you the power to react on time and with more efficacy for the long term. Also, you get to review the overall working with a set of proficient developers.
Whether you directly connect with the blockchain or not, your business draws a large number of benefits from the smart contracts. The very core of this solution enables you to create a fitting structure around every company. Also, you get to come with a prominent fix that empowers the proponents of your project. The vision of your investors gets broadened and you get the insights to envision things properly. Every time you do it, you get things worked up properly, you get to maintain a proper flux of funds. In this way, your business gets whatever you want in a very short duration.
By introducing this solution, you prepare your startup to scale up the steps of success. Also, it helps your business overcome all types of issues whether they are temporary in nature or permanent. You need to understand the predilection of every course of action so there is never any obstacle in the way. Moreover, it becomes very easy for your organization to spread its wings because it has befitting tools to support its working. This may also happen in with support structures that ease the expansion of business in a very lesser time.
In every industry, there is a scope of decentralization and you can make it even easier through a string of services. All the crypto-based programs help you get closer to the customers with a reliable method of payment. With this structure, it is possible for every business to do something exceptional. Whether you want it or not, you get to work on many expeditionary campaigns. Also, you help others expand the work and things can get more explicable flawlessly. The working of this solution gives you a high quantum of accuracy in every possible manner.
The prospects of your company can get much better and promising because you have a lesser number of agents deployed. You might find these differences odd, but they can highly impact the development as well as transactions. When you want to touch base with your team or some consultants, you get a better idea about the entire thing. Also, that happens without having you wasting your time. There could be subtle errors in the initial phases of the development of tokens or any other distributed ledger. If decentralization is at the core, you need to have more potential to conceptualize new methods.
You can certainly get such experts but the search has to be very thorough in nature. Also, the whole thing has to be planned to the hilt and things could be working seamlessly. When you get things working at an impressive pace, you might lack clear objects. Even if there is a projected solution for some problems, you must not employ them before proper rounds of review. This approach gives you satisfactory results in every domain and keeps you one step ahead when it comes to getting what you precisely need.
It is vital that you work with people who have an idea about what’s happening in your firm. By working with such people, you get more certainty in every step sans wasting a large quantum of resources or time. You might be able to find some other options but they all resort to decentralization in the end. The best way to implement this solution is to give more time to every single process through many methods. Also, you need to get things aligned with a proper solution and help the developers give shape to their visions.
With the experts of Coin Developer India, it is possible for every startup to get a bespoke smart contract. We make this solution so adaptable that you don’t think about making any changes in the existing structure of the business. Our seasoned professionals help you get over all the problems that you might face in the planning or the execution stage. We make every single task absolutely flawless and help you get familiar with pragmatic fixes that are cost-effective too. If you want to make the most of this blockchain-based service, you must work with us.
Want an efficient smart contract for your business? Associate with us!
Contact Details:
Call and Whatsapp : +91-7014607737
Email: cryptodeveloperjaipur@gmail.com
Telegram : @vipinshar
#smart contract development company #smart contract #mlm smart contract #mlm #smart contract development #hire smart contract developer
1595917383
Smart Contract MLM Software is a smart contract-based MLM platform, built on blockchain technology that helps you to build trustworthy blockchain MLM business with fully decentralized Ethereum SmartContract.The smart contract MLM has embedded with various working features of MLM Responsive Website, Member Back office, admin back office, secured cloud server, anti-DDOS protection, and SSL.
Benefits of Smart Contracts based MLM Platform
Having an idea to start MLM business with smart contract development??
Coinjoker offers high end MLM software along with fresh business models, highly responsive and attractive UI/UX, and targeted MLM leads. This Smart contract-based MLM software is integrated with latest lead generating features to generate your passive income.
Some of the Smart Contract MLM Clone Scripts,
Millionmoney is a networking program that is built on blockchain technology and ethereum cryptocurrency as p2p donation among members. Million Money occurs to be a pyramid scheme, that is you have to pay a fee to join the scheme, and then you have to refer other people to that scheme. The only possible way to make a positive return on your original joining fee is to convince enough people to join after you. You will receive a small portion of the fees from any members who you recruit, while the rest of your fees get passed to higher levels of the pyramid.
Forsage, found at forsage.io, is a MLM or multi-level marketing company that claims to have created the world’s first 100% decentralized Ethereum smart contract.Forsage ethereum smart contract "enables peer-to-peer (P2P) commission payments between its program participants.” Forsage is Ethereum Blockchain Matrix Project, this smart contract is supposed to offer any participants “the ability to directly engage in personal and business transactions.
Doubleway Multi-level marketing (MLM) is one of the most popular and easy way to make money online and other than the health and wellness niche, cryptocurrency seems to be one of the most-talked-about opportunities to start various mlm business in the wider globe space. Doubleway uses an MLM structured business model you can recruit new people to join doubleway through your affiliate link and build a downline team to earn commissions with the company.
Etrix is a First Smart Contract With Binary open MLM structure With Two Matrixes. It has Forced Matrix and Team Matrix. Both Team and Company Forced Matrixes are working simultaneously. Etrix is noted for the fastest and easiest way to earn ethereum for every 90 days. People are using this smart contract to give donations and receive donations in form of Ethereum.
XOXO Network is a decentralized, peer to peer global powerline networking system that runs on set protocols with no admin or official authority. This Ethereum smart contract-based system requires members to choose between different smart contract projects that could potentially yield profits. XOXO Network is nothing but a crypto-based cash gifting matrix cycler program. The Network uses Ethereum as the only method of payment that is member to member. Thus XOXO is the first-ever powerline network built on a smart contract, it protocols it’s unshakable and unstoppable to work and serve everyone equally.
You can launch the above mentioned smart contract-based MLM Clone scripts like Million Money, Forsage, Etrix, Doubleway, XOXO network within a week!!
Get Free Demo for Crypto MLM Clone Scripts>> https://www.cryptoexchangescript.com/contact-us
or contact through
Whatsapp ->> +91 9791703519
Skype->> live:support_60864
Telegram->> https://t.me/Coin_Joker
#smart contract based mlm clone #smart contract mlm clone script #smart contract based mlm clone script #smart contract mlm clone development #ethereum smart contract mlm clone script