Search Engines

Zinnia like almost all blogging systems contains a search engine feature.

But in fact there are 2 search engines, a basic and an advanced, the advanced search engine is enabled by default, but if he fails the basic search engine will resume the job.

Basic Search Engine

The basic search engine is the original engine of Zinnia, and will be used if the advanced engine cannot be used.

It will always returns more results than the advanced engine, because each terms of the query will be searched in the entries and the results are added to a main result list. We can say that the results are inclusives.

Example of a query :

love paris

This will returns all the entries containing the terms love or paris.

Advanced Search Engine

The advanced search engine has several possibilities for making more elaborated queries, with it’s own grammar system.

The grammar of the search is close to the main search engines like Google or Yahoo.

The main difference with the basic engine is that the results are exclusives.

For enabling the advanced search engine, you simply need to install the pyparsing package. Otherelse the basic engine will be used.

Query examples

Here a list of examples and possibilities:

Example of a query with terms:

love paris

This will returns all the entries containing the terms love and paris.

Example of a query with excluded terms:

paris -hate

This will returns all the entries containing the term paris without the term hate.

Example of a query with expressions:

"Paris, I love you"

This will returns all the entries containing the expression Paris, I love you.

Example of a query with category operator:

love category:paris

This will returns all the entries containing the term love filled in the category named paris.

Example of a query with tag operator:

paris tag:love

This will returns all the entries containing the term paris with the tag love.

Example of a query with author operator:

paris author:john

This will returns all the entries containing the term paris writed by john.

Example of a query with boolean operator:

paris or berlin

This will returns all the entries containing the term paris or berlin.

Example of e query with parenthesis:

(paris or berlin) love

This will returns all the entries containing the terms paris or berlin with the term love.

Complex example:

((paris or berlin) and (tag:love or category:meet*)) girl -money

This will returns all the entries containing the terms paris or berlin with the tag love or filled under the categories starting by meet also containing the term girl excluding entries with the term money.

Note that the query is stripped of common words known as stop words. These are words such as on, the or which that are generally not meaningful and cause irrelevant results.

The list of stop words is stored in the ZINNIA_STOP_WORDS setting.

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