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Introduction

collective.geo.opensearch builds on collective.geo (Plone Maps) and collective.opensearch.

Produce Spatial Open Search Feeds

collective.geo.opensearch adds the possibility to add OpenSearch compatible search results to your Plone site.

  • site wide: this is a simple copy of the Plone search so all option that you may pass to the standard /search will be recognized as well.
  • for a collection/topic: You can search inside a topic, i.e. you define a 'base query' as a topic and additional parameters of the query are applied additional.

OpenSearch is a collection of simple formats for the sharing of search results.

OpenSearch helps search engines and search clients communicate by introducing a common set of formats to perform search requests and syndicate search results. OpenSearch helps search engines and search clients communicate by introducing a common set of formats to perform search requests and syndicate search results. The OpenSearch description document format can be used to describe a search engine so that it can be used by search client applications. The OpenSearch response elements can be used to extend existing syndication formats, such as RSS and Atom, with the extra metadata needed to return search results

collective.geo.opensearch enables you to syndicate the search results of your Plone site by formatting them in the RSS, Atom or KML formats, augmented with OpenSearch response elements.

Implemented extensions and conventions

  • opensearch
  • relevance
  • opensearch description for autodiscovery
  • suggestions so that browsers can autocomplete
  • response elements and first, previous, next, last links
  • georss (for Atom and RSS Results)

Consume Open Search Feeds

collective.geo.opensearch adds a view to the link type that lets you search OpenSearch (or other searches that return RSS or Atom, pretty much any other format feed parser supports and KML) compatible search providers within your site. The feeds do not need to implement the opensearch extensions it suffices that they are valid feeds. As there is no way of knowing if the feed returns georss or KML you have to choose 'Open Search Map View' manually for this link.

You can combine several open search links as a metasearch. All OpenSearch links inside a folder will be queried and their results displayed when you change the view of a folder to 'Open Search Map View'

Usage:

1) Display a map view of a georss RSS, Atom or KML search results

Add a link content type that points to a remote (search) feed or KML. You have to choose 'Open Search Map View' manually for this link.

georss feeds will be converted into a html search result and a KML map layer. KML sources will be passed on 'as is' (the description is passed through htmllaundry) and the name and description of the placemarks displayed as search results.

The view consists of a simple search form, the map displaying the georss or KML information and the results of the query

2) search multiple sources at once

To build a simple metasearch create a folder and add your query links to it. Change the view of the folder to 'Open Search Map View'. The view consist of a search form (currently only for full text search) which input will be applied to all open search links (i.e. any link that has 'Open Search Map View' set as its view). The results of the searches will be displayed as layers in the map and in tabs beneath the form. The queries are executed asynchronously via AJAX, so you do not have to wait until the last query has finished.

Abusing collective.geo.opensearch to Display miscellaneous Feeds and KMLs

3) Display an arbitrary 'static' feed or a remote KML Files

Although the main focus of this product is to produce and display search feeds you may use it to display any valid feed. If the url of the link you added does not contain the {searchTerm} parameter and 'Open Search Map View' (you have to select the view manually from the 'display' menu) is selected as the view of the link, the feed will be fetched regardless of the presence of a query parameter and its results will be displayed. The search form will not be displayed in the absence of the {searchTerms} parameter.

4) Display multiple feeds or KMLs

Add your feeds to display to a folder (as in [2]) and select'Open Search Map View' as the display view of the folder All feeds that do not have a {searchTerm} parameter in their url will be fetched immediately, regardless if a search input was provided. The search form will only be displayed if at least one of the links inside the folder has a {searchTerm} parameter.

5) Use collective.geo.opensearch to search inside your collections

As opensearch results are added to all collections you may use it as a search form to search inside your collections. if you use a relative link (e.g. /mycollection/SearchableText={searchTerms}) you have to choose 'Open Search Map View' manually to display the search results.

Known limitations issues and caveats

  • Currently only the {searchTerms} parameter for full text search is recognized and supported
  • add '<match path="regex:^./opensearchresults.html" abort="1" />' to your deliverance/xdv/diazo rules
  • internal searches as described in [5] will always be executed as 'anonymous'
  • relative links in kml files will not be rewritten

Differences between RSS/Atom and KML Search Results

The KML file will only return the content which is geo annotated. RSS and Atom feeds will return all content that matches the query with georss for the items which are geo annotated.

Documentation

Full documentation for end users can be found in the "docs" folder. It is also available online at https://collectivegeo.readthedocs.io/

Translations

This product has been translated into

  • Spanish.

You can contribute for any message missing or other new languages, join us at Plone Collective Team into Transifex.net service with all world Plone translators community.

Installation

This addon can be installed has any other addons, please follow official documentation.

Tests status

This add-on is tested using Travis CI. The current status of the add-on is:

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Contribute

Have an idea? Found a bug? Let us know by opening a ticket.

License

The project is licensed under the GPLv2.

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