Override the CSS

Hi,
do not worry about the first message, i sometimes need to troubleshot some third party plugins and i understand it can be frustrating when code appears seemingly out of nowhere, and the fact is i do not have the forms API documented properly yet, there are only some code snippets related to this in Custom Fields article http://wpadverts.com/documentation/custom-fields/.

Either way in WPAdverts the forms are generated dynamically using Adverts_Form class, this makes them hard to modify directly, but easy to customize via API, the code below will add class “form-control” to each input[type=”text”] in the frontend (you can add it to your theme functions.php or create a new plugin and paste it there)

add_filter( "adverts_form_load", "add_form_control_class" );
function add_form_control_class( $form ) {
    if( is_admin() ) {
        return $form;
    }
    foreach( $form["field"] as $k => $field ) {
        if( $field["type"] == "adverts_field_text" ) {
            if( isset( $field["class"] ) ) {
                $field["class"] = trim( $field["class"] . "form-control" );
            } else {
                $field["class"] = "form-control";
            }

            $form["field"][$k] = $field;
        }
    }
    return $form;
}

The default form labels you can hide by adding following CSS to your theme CSS file

.adverts-form .adverts-control-group > label {
    display: none;
}

Setting placeholders for each field can also be done using adverts_form_load filter although you might need to customize the code a bit to set placeholders you wish to use

add_filter( "adverts_form_load", "add_form_set_placeholders" );
function add_form_set_placeholders( $form ) {
    if( is_admin() ) {
        return $form;
    }

    $pholders = array(
        "adverts_person" => __( "Contact Person", "adverts" ),
        "adverts_email" => __( "Email", "adverts" ),
        "adverts_phone" => __( "Phone Number", "adverts"),
        "post_title" => __( "Title", "adverts" ),
        "adverts_price" => __( "Price", "adverts" ),
        "adverts_location" => __( "Location", "adverts" )
    );

    foreach( $form["field"] as $k => $field ) {
        if( array_key_exists( $field["name"], $pholders ) ) {
            $form["field"][$k]["placeholder"] = $pholders[ $field["name"] ];
        }
    }

    return $form;
}

The form schemes used in the frontend are defined in wpadverts/includes/defaults.php ( look for Adverts::instance()->set( … ) ).

The code in Custom Image Sizes document you can add either into your theme functions.php or even better create a new WP plugin and paste it there.

Ok i hope this covers everything you asked about.

I will take a look at integrating WPAdverts completely with Bootstrap when i will find some free time to learn it, as i think about it this might be an opportunity to make WPAdverts always look pixel perfect good with all themes using Bootstrap.