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Construct a JSON array

doug 10 лет назад • обновлен 10 лет назад • 3
I am looking to be able to either build an array within a local JSON datasource, or be able to render a full list of comma separated objects that I have created via the "add" property for a JSON datasource.

I can add the data to the datasource just fine, but I then want to assign ALL of the data of the datasource to a variable to be able to push it to a REST API. With that said, how can I add an object to a datasource, and then add additional objects to the first object as an array. OR as I said, be able to render all of the content of the datasource that I have been assigning data to.
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icahill (Administrator) 10 лет назад
Doug,

Let me work up an example for you to look at. 
icahill (Administrator) 10 лет назад
Let me know if you have any other questions: 


<wire>
  <datasources>
    <datasource name="field-list" source="" query="/" providertype="json"/>
  </datasources>
  <classes>
    <class name="article-list-item">
         <panel name="article-[param:dataSourceIndex]" width="95%" height="20%" lheight="25%" _name="[param:text]" _dataSourceIndex="[param:dataSourceIndex]" align="center" background="#ff0000" bordercolor="00ee00" borderwidth="3">
              <text name="headline" width="100%" height="50%" color="#ffffff" font="helvetica" size="18" align="center" valign="top" alignment="center" text="[param:text]"></text>
         </panel>
    </class>
  </classes>
  <main>
  
    <panel name="bg" width="100%" height="100%">
      <panel name="list-container" width="100%" lwidth="95%" height="100%" align="center" clip="yes">
    <list name="list" datasource="field-list" width="102%" lwidth="102%" height="100%" align="center" orientation="vertical" paginate="no">
      <object class="article-list-item" dataSourceIndex="[param:dataSourceIndex]" text="[param:value]" />
    </list>
      </panel>
    </panel>
  </main>
<actions>
  <action name="oninit" oninit="yes">         
       <play action="add"></play>
  </action>
   <action name="complete" datasource="field-list">
      <alert message="[datasource:field-list.1.value] \\ [datasource:field-list.2.value] \\ [datasource:field-list.3.value]"/>
      <play action="concatonate" />
   </action> 
   
   <!-- This action is acting as the tool to add elements to a locally stored json file-->
   <action name="add">
      <sync>
      <assign property="var:counter" value="0" />
         <!-- The loop allows us to add more elements to the json faster-->
      <loop lhs="[var:counter]" operator="lt" rhs="10">
          <assign property="datasource:field-list.add" value='{"name":"param","value":"value[var:counter]"}'/>   
          <assign property="var:counter" value="[js:[var:counter]+1]" />
      </loop>
      <!--Trigger a querycomplete to them compile the contents to send somewhere else-->   
      <assign property="datasource:field-list.event" value="querycomplete"/>
      </sync>   
   </action>
   
   <!--This action will capture the counter value from the json and concatonate a comma separated list. You probably will need to do some regex or something to remove the first comma.-->
   <action name="concatonate" >
      <sync>
         <assign property="var:allthestuff" value="" />    
         <assign property="var:counter" value="0" />
         <loop lhs="[var:counter]" operator="lte" rhs="[datasource:field-list.dataSourceResultCount]">
             <assign property="var:allthestuff" value="[var:allthestuff],[datasource:field-list.[var:counter].value]"/>   
             <assign property="var:counter" value="[js:[var:counter]+1]" />
         </loop>
         <!--Use this final var to send as a postcontent through your REST API-->
         <alert message="[var:allthestuff]"/>
      </sync>   
   </action>
</actions>
</wire>
              
  
doug 10 лет назад
Yep this worked. Instead of using a regex to remove the comma, I just wrapped it within an if statement like so:

<if lhs="[var:contacts-to-upload]" operator="ne" rhs="">
	<assign property="var:contacts-to-upload" value="[var:contacts-to-upload],[datasource:updatedContactStorage.[var:contacts-index].dataSourceResultContent]" />
	<else>
		<assign property="var:contacts-to-upload" value="[datasource:updatedContactStorage.[var:contacts-index].dataSourceResultContent]" />
	</else>
</if>

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