Click here to close now.




















Welcome!

You will be redirected in 30 seconds or close now.

ColdFusion Authors: Yakov Fain, Maureen O'Gara, Nancy Y. Nee, Tad Anderson, Daniel Kaar

Related Topics: ColdFusion, Adobe Flex

ColdFusion: Article

ColdFusion "Real Estate Sample Application" (Part I)

Building the search functionality with Flash Forms

With the release of Macromedia ColdFusion 7 and the arrival of Flash Forms, developers were presented with an alternative to HTML forms that offered them additional functionality, such as full-featured controls not available in HTML and built-in validation.

That alone made Flash Forms appealing - and with the addition of pieces of ActionScript code, developers were able to create truly responsive forms. But because they were meant to be compatible with HTML forms, they still shared the same submit-refresh model. What if you could "submit" the form and, without a page refresh, get feedback from the server?

Enter Flash Remoting. In this series of tutorials you will learn how to create an application that allows users to search and retrieve records from a database, and then edit, add, and remove them from the database - all in one screen. Those functions will be presented in the context of a sample application, a real state management system that administers listings of properties for sale.

In Part 1 of this series, you will build the search functionality in the application.

Requirements
To complete this tutorial you will need to install the following software and files:

Prerequisite Knowledge
Basic knowledge of ColdFusion components and Flash Forms and the ability to set up a data source and write simple SQL statements.

Overview of the Real Estate Management System Sample Application
This article focuses on the search functionality of the sample application (see Figure 1).

When you open the application, a small panel on the left lets users search for a property by specifying search criteria, such as number of bedrooms or price range. The matching properties appear in a data grid in the upper-right panel, and when a user selects a property, the details appear in the lower-right panel (see Figure 2).

In the following sections you will do the following:

  1. Create the search form.
  2. Write a component to make the search query.
  3. Create a Flash Remoting service that handles the search request.
  4. Call the Flash Remoting service and show the results in a datagrid
Creating the Search Form
The whole application user interface is one Flash Form. As such, its contents are within the cfform tag:

<cfform format="flash" name="RealEstateAdmin">
<!--- form content --->
</cfform>

The only necessary attribute of the cfform tag is the format="flash" attribute to create a Flash Form. By assigning a name to the form, you will have a named scope that you can use later. You can also set the form's dimensions by using the width and height attributes.

Note: If you are familiar with the process of defining a simple Flash Form, you can skip this section.

The Search panel (see Figure 3) contains several controls, all of them enclosed in a cfformgroup tag with a type attribute of "panel":

<cfformgroup type="panel" label="Search" height="440" >
<!--- controls --->
</cfformgroup>

These are the controls contained within the Search panel:

  • The cfselect tags for Price range, Bedrooms, Bathrooms, and Minimum footage that create pop-up menus. You can populate cfselect tags from option tags, queries, or a combination of the two, as shown in this example:

    <cfselect name="search_priceRangeFrom"
    query="priceRange"
    display="label"
    value="data"
    queryposition="below">
    <option value="0">No min.</option>
    </cfselect>

    This cfselect tag uses a query called priceRange that contains two columns - data and label - which populate the search_priceRangeFrom select control. In addition, an extra option not present in the query ("No min.") is manually added using an option tag. The name you give each control is important because later you will need to reference the control name when you submit the form.

  • <cfinput type="text"> tag for "MLS number", as follows:

    <cfinput name="search_mls_id" type="text" />

  • <cfinput type="radio"> tags for "Status." You need one cfinput tag for each type of listing status (Active, Sold, Back Up Offers, New Listing). Option button tags that belong to the same group must have the same name. See the following:

    <cfinput type="radio" name="search_status" value="active" label="Active"/>
    <cfinput type="radio" name="search_status" value="backUp" label="Back Up Offers"/>
    <cfinput type="radio" name="search_status" value="sold" label="Sold"/>

  • <cfinput type="checkbox"> tags for "Amenities." You need one tag for each type of amenity (Pool, Laundry, Walk-in Closets, Fireplace). Unlike option buttons, each tag must have a different name, as follows:

    <cfinput type="checkbox" name="search_hasPool" label="Pool"/>
    <cfinput type="checkbox" name="search_hasLaundry" label="Laundry"/>
    <cfinput type="checkbox" name="search_hasFireplace" label="Fireplace"/>

  • <cfformitem type="text"> tags for additional labels or titles, as follows:

    <cfformitem type="text" style="fontWeight:bold;">Status: </cfformitem>

  • <cfinput type="button"> tag for the Search button:

    <cfinput type="button" name="search_submitBtn" value="Search" />

You must also use additional cfformgroup tags to lay out the controls. Look at the index.cfm source file in the ZIP download to see the complete code.

This small section of the application does not do anything yet. It only accepts user input of standard form controls: text inputs, option buttons, check boxes, and selects. At this point, you would normally add a Submit button to submit the form for processing on the server. But don't do that yet - wait just a moment and complete the following sections.

More Stories By Nahuel Foronda

Nahuel Foronda is one of the founders of Blue Instant (http://www.blueinstant.com), a web development firm specializing in Rich Internet Applications where he has been creating award-winning applications and offering training for the last five years. He also maintains a blog, called AS Fusion (http://www.asfusion.com), where he writes about Flash, ColdFusion and other web technologies.

More Stories By Laura Arguello

Laura Arguello is one of the founders of Blue Instant (http://www.blueinstant.com), a web development firm specializing in Rich Internet Applications where she has been creating award-winning applications and offering training for the last five years. She also maintains a blog, called AS Fusion (http://www.asfusion.com), where she writes about Flash, ColdFusion and other web technologies.

Comments (5) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
SYS-CON Belgium News Desk 01/27/06 02:58:22 PM EST

With the release of Macromedia ColdFusion 7 and the arrival of Flash Forms, developers were presented with an alternative to HTML forms that offered them additional functionality, such as full-featured controls not available in HTML and built-in validation.

SYS-CON Netherlands News Desk 01/27/06 02:33:25 PM EST

With the release of Macromedia ColdFusion 7 and the arrival of Flash Forms, developers were presented with an alternative to HTML forms that offered them additional functionality, such as full-featured controls not available in HTML and built-in validation.

SYS-CON India News Desk 01/27/06 12:09:13 PM EST

With the release of Macromedia ColdFusion 7 and the arrival of Flash Forms, developers were presented with an alternative to HTML forms that offered them additional functionality, such as full-featured controls not available in HTML and built-in validation.

SYS-CON Italy News Desk 01/27/06 11:05:16 AM EST

With the release of Macromedia ColdFusion 7 and the arrival of Flash Forms, developers were presented with an alternative to HTML forms that offered them additional functionality, such as full-featured controls not available in HTML and built-in validation.

SYS-CON India News Desk 01/27/06 10:17:12 AM EST

With the release of Macromedia ColdFusion 7 and the arrival of Flash Forms, developers were presented with an alternative to HTML forms that offered them additional functionality, such as full-featured controls not available in HTML and built-in validation.

@ThingsExpo Stories
WebRTC has had a real tough three or four years, and so have those working with it. Only a few short years ago, the development world were excited about WebRTC and proclaiming how awesome it was. You might have played with the technology a couple of years ago, only to find the extra infrastructure requirements were painful to implement and poorly documented. This probably left a bitter taste in your mouth, especially when things went wrong.
SYS-CON Events announced today that IceWarp will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. IceWarp, the leader of cloud and on-premise messaging, delivers secured email, chat, documents, conferencing and collaboration to today's mobile workforce, all in one unified interface
With the proliferation of connected devices underpinning new Internet of Things systems, Brandon Schulz, Director of Luxoft IoT – Retail, will be looking at the transformation of the retail customer experience in brick and mortar stores in his session at @ThingsExpo. Questions he will address include: Will beacons drop to the wayside like QR codes, or be a proximity-based profit driver? How will the customer experience change in stores of all types when everything can be instrumented and analyzed? As an area of investment, how might a retail company move towards an innovation methodolo...
The Internet of Things (IoT) is about the digitization of physical assets including sensors, devices, machines, gateways, and the network. It creates possibilities for significant value creation and new revenue generating business models via data democratization and ubiquitous analytics across IoT networks. The explosion of data in all forms in IoT requires a more robust and broader lens in order to enable smarter timely actions and better outcomes. Business operations become the key driver of IoT applications and projects. Business operations, IT, and data scientists need advanced analytics t...
A producer of the first smartphones and tablets, presenter Lee M. Williams will talk about how he is now applying his experience in mobile technology to the design and development of the next generation of Environmental and Sustainability Services at ETwater. In his session at @ThingsExpo, Lee Williams, COO of ETwater, will talk about how he is now applying his experience in mobile technology to the design and development of the next generation of Environmental and Sustainability Services at ETwater.
Consumer IoT applications provide data about the user that just doesn’t exist in traditional PC or mobile web applications. This rich data, or “context,” enables the highly personalized consumer experiences that characterize many consumer IoT apps. This same data is also providing brands with unprecedented insight into how their connected products are being used, while, at the same time, powering highly targeted engagement and marketing opportunities. In his session at @ThingsExpo, Nathan Treloar, President and COO of Bebaio, will explore examples of brands transforming their businesses by t...
SYS-CON Events announced today that Pythian, a global IT services company specializing in helping companies leverage disruptive technologies to optimize revenue-generating systems, has been named “Bronze Sponsor” of SYS-CON's 17th Cloud Expo, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Founded in 1997, Pythian is a global IT services company that helps companies compete by adopting disruptive technologies such as cloud, Big Data, advanced analytics, and DevOps to advance innovation and increase agility. Specializing in designing, imple...
While many app developers are comfortable building apps for the smartphone, there is a whole new world out there. In his session at @ThingsExpo, Narayan Sainaney, Co-founder and CTO of Mojio, will discuss how the business case for connected car apps is growing and, with open platform companies having already done the heavy lifting, there really is no barrier to entry.
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
Through WebRTC, audio and video communications are being embedded more easily than ever into applications, helping carriers, enterprises and independent software vendors deliver greater functionality to their end users. With today’s business world increasingly focused on outcomes, users’ growing calls for ease of use, and businesses craving smarter, tighter integration, what’s the next step in delivering a richer, more immersive experience? That richer, more fully integrated experience comes about through a Communications Platform as a Service which allows for messaging, screen sharing, video...
SYS-CON Events announced today that Micron Technology, Inc., a global leader in advanced semiconductor systems, will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Micron’s broad portfolio of high-performance memory technologies – including DRAM, NAND and NOR Flash – is the basis for solid state drives, modules, multichip packages and other system solutions. Backed by more than 35 years of technology leadership, Micron's memory solutions enable the world's most innovative computing, consumer,...
As more intelligent IoT applications shift into gear, they’re merging into the ever-increasing traffic flow of the Internet. It won’t be long before we experience bottlenecks, as IoT traffic peaks during rush hours. Organizations that are unprepared will find themselves by the side of the road unable to cross back into the fast lane. As billions of new devices begin to communicate and exchange data – will your infrastructure be scalable enough to handle this new interconnected world?
As more and more data is generated from a variety of connected devices, the need to get insights from this data and predict future behavior and trends is increasingly essential for businesses. Real-time stream processing is needed in a variety of different industries such as Manufacturing, Oil and Gas, Automobile, Finance, Online Retail, Smart Grids, and Healthcare. Azure Stream Analytics is a fully managed distributed stream computation service that provides low latency, scalable processing of streaming data in the cloud with an enterprise grade SLA. It features built-in integration with Azur...
Too often with compelling new technologies market participants become overly enamored with that attractiveness of the technology and neglect underlying business drivers. This tendency, what some call the “newest shiny object syndrome,” is understandable given that virtually all of us are heavily engaged in technology. But it is also mistaken. Without concrete business cases driving its deployment, IoT, like many other technologies before it, will fade into obscurity.
Akana has announced the availability of the new Akana Healthcare Solution. The API-driven solution helps healthcare organizations accelerate their transition to being secure, digitally interoperable businesses. It leverages the Health Level Seven International Fast Healthcare Interoperability Resources (HL7 FHIR) standard to enable broader business use of medical data. Akana developed the Healthcare Solution in response to healthcare businesses that want to increase electronic, multi-device access to health records while reducing operating costs and complying with government regulations.
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space. In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducted a live demonstration of how quickly application development can happen when the need to comply wit...
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Architect for the Internet of Things and Intelligent Systems, described how to revolutionize your archit...
MuleSoft has announced the findings of its 2015 Connectivity Benchmark Report on the adoption and business impact of APIs. The findings suggest traditional businesses are quickly evolving into "composable enterprises" built out of hundreds of connected software services, applications and devices. Most are embracing the Internet of Things (IoT) and microservices technologies like Docker. A majority are integrating wearables, like smart watches, and more than half plan to generate revenue with APIs within the next year.
Growth hacking is common for startups to make unheard-of progress in building their business. Career Hacks can help Geek Girls and those who support them (yes, that's you too, Dad!) to excel in this typically male-dominated world. Get ready to learn the facts: Is there a bias against women in the tech / developer communities? Why are women 50% of the workforce, but hold only 24% of the STEM or IT positions? Some beginnings of what to do about it! In her Opening Keynote at 16th Cloud Expo, Sandy Carter, IBM General Manager Cloud Ecosystem and Developers, and a Social Business Evangelist, d...