Hi all.

Hope you can help.

I've created a visualforce page of a custom object with ext controller but it would'n't save to the Contact (Master Detail).

I'm quite new to SF coding.

Here's the VF
 

<apex:page standardcontroller="Fact_Find__c" extensions="FactFindClass" tabstyle="Fact_Find__c">
<apex:form >   
<apex:sectionheader title="My Life Fact-Find"/>
    
<Apex:pageBlock >
<apex:pageBlockButtons >
<apex:commandButton action="{!save}" value="Save"/>
<apex:commandButton action="{!edit}" value="Edit"/>
</apex:pageBlockButtons>
    
<apex:pageBlocksection id="FFContact"  title="Contact" columns="2" collapsible="false" showheader="true">    
<apex:inputField value="{!ff.Contact__c}" label=""/>
</apex:pageBlocksection>
    
<apex:pageBlocksection id="FF"  title="Application Method" columns="2" collapsible="false" showheader="true">
<apex:outputText style="font-style:italic;font-weight:900;" value="When you are away from the office and completing an application, which method do you usually use?"/>
<apex:inputField value="{!Fact_Find__c.My_Life_Application_Method__c}" label=""/>  
</apex:pageBlocksection>
    
<apex:pageBlocksection id="FF2"  title="Further Calls Required?" columns="2" collapsible="false" showheader="true">
<apex:outputText style="font-style:italic;font-weight:900;" value="When you submit an application using an online system, without the customer present, how often do you usually have to call them back to gather additional information from when you originally met with them?"/>
<apex:inputField value="{!Fact_Find__c.My_Life_Callback_Question__c}" label=""/>  
</apex:pageBlocksection>
<apex:pageBlocksection id="FF3"  title="Mobile/Tablet" columns="2" collapsible="false" showheader="true">
<apex:outputText style="font-style:italic;font-weight:900;" value="Would you find a mobile/ tablet version of OLPC useful?"/>
<apex:inputField value="{!Fact_Find__c.My_Life_Mobile_Tablet_Question__c}" label=""/>    
</apex:pageBlocksection>
    
<apex:pageBlocksection id="FF4"  title="Customer Broadband" columns="2" collapsible="false" showheader="true">
<apex:outputText style="font-style:italic;font-weight:900;" value="If you don’t already, would you be comfortable using your customer’s broadband to complete an application online?"/>
<apex:inputField value="{!Fact_Find__c.My_Life_Customer_Broadband_Question__c}" label=""/> 
<apex:inputField value="{!Fact_Find__c.My_Life_Customer_Broadband_Question_Add__c}" label="Why?"/>
</apex:pageBlocksection>
    
<apex:pageBlocksection id="FF5"  title="Medical Questions" columns="2" collapsible="false" showheader="true">
<apex:outputText style="font-style:italic;font-weight:900;" value="If you had the capability to “hand off” the medical questions to the customer so that they could complete them on their own and even at a different time, would you find this useful and appealing for your sales process and the customer journey?"/>
<apex:inputField value="{!Fact_Find__c.My_Life_Hand_Off_Medical_Questions__c}" label=""/> 
<apex:inputField value="{!Fact_Find__c.My_Life_Medical_Questions_A__c}" label="Why?" style="width:360px; height:40px"/> 
</apex:pageBlocksection>
    
<apex:pageBlocksection id="FF6"  title="Underwriting Answers" columns="2" collapsible="false" showheader="true">
<apex:outputText style="font-style:italic;font-weight:900;" value="Would some customers like the option to prohibit you from seeing their underwriting answers?"/>
<apex:inputField value="{!Fact_Find__c.My_Life_Prohibit_U_W_Answers_Question__c}" label=""/>    
</apex:pageBlocksection>
</apex:pageBlock>
</apex:form>
</apex:page>

Here's the ext:
 

public with Sharing class FactFindClass {

    Public Contact con {get;set;}
    Public Contact FFContact {get;set;}
    Public Fact_Find__c ff {get; set;}
    
    public FactFindClass(ApexPages.StandardController sc){
        con = [Select ID, First_Last_Name__c from Contact limit 1];
    ff = [Select Id, Contact__c from Fact_Find__c limit 1];
        ff.Contact__c=con.Id;
    }
    
    
}

Can someone help?

Thanks in advance

Adam