Magento - Retrieve products with a specific attribute value

Question

In my block code I am trying to programmatically retrieve a list of products that have a attribute with a specific value   Alternately if that is not possible how would one retrieve all products then filter them to just list the products with a specific attribute   How would I perform a search using standard boolean filters AND or OR to match a subset of my products

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I have added line    this- gt  productCollection- gt addAttributeToSelect  releasedate      in      app code core Mage Catalog Block Product List php on line 95     in function  getProductCollection      and then call it in       app design frontend default hellopress template catalog product list phtml   By writing code   lt div gt  lt  php echo  this- gt     Release Date   s    this- gt dateFormat   product- gt getReleasedate       gt   lt  div gt    Now it is working in Magento 1 4 x

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attribute   Mage  getModel  eav entity attribute                   - gt loadByCode  catalog product    manufacturer      valuesCollection   Mage  getResourceModel  eav entity attribute option collection               - gt setAttributeFilter  attribute- gt getData  attribute id                - gt setStoreFilter 0  false     preparedManufacturers   array                foreach  valuesCollection as  value         preparedManufacturers  value- gt getOptionId       value- gt getValue           if  count  preparedManufacturers         echo   lt h2 gt Manufacturers lt  h2 gt  lt ul gt        foreach  preparedManufacturers as  optionId   gt   value             products   Mage  getModel  catalog product  - gt getCollection             products- gt addAttributeToSelect  manufacturer             products- gt addFieldToFilter array              array  attribute   gt  manufacturer    eq   gt   optionId                                 echo   lt li gt      value     -       optionId      -  Products    count  products     lt  li gt              echo   lt  ul gt

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To Get TEXT attributes added from admin to front end on product listing page   Thanks Anita Mourya  I have found there is two methods  Let say product attribute called  na author  is added from backend as text field   METHOD 1  on list phtml   lt  php  i 0  foreach    productCollection as   product     gt    FOR EACH PRODUCT LOAD BY SKU AND GET ATTRIBUTE INSIDE FOREACH   lt  php  product   Mage  getModel  catalog product  - gt loadByAttribute  sku    product- gt getSku      author    product  na author      gt    lt  php if  author      echo   lt br   gt  lt span class  home book author  gt By    author    lt  span gt     else echo        gt    METHOD 2  Mage Catalog Block Product List phtml OVER RIDE and set in  local folder   i e  Copy From  Mage Catalog Block Product List phtml   and PASTE TO  app code local Mage Catalog Block Product List phtml   change the function by adding 2 lines shown in bold below   protected function  getProductCollection            if  is null  this- gt  productCollection                 layer   Mage  getSingleton  catalog layer                   var  layer Mage Catalog Model Layer               if   this- gt getShowRootCategory                      this- gt setCategoryId Mage  app  - gt getStore  - gt getRootCategoryId                                 if this is a product view page            if  Mage  registry  product                        get collection of categories this product is associated with                 categories   Mage  registry  product  - gt getCategoryCollection                      - gt setPage 1  1                     - gt load                      if the product is associated with any category                if   categories- gt count                            show products from this category                     this- gt setCategoryId current  categories- gt getIterator                                                 origCategory   null             if   this- gt getCategoryId                      category   Mage  getModel  catalog category  - gt load  this- gt getCategoryId                     if   category- gt getId                          origCategory    layer- gt getCurrentCategory                        layer- gt setCurrentCategory  category                                             this- gt  productCollection    layer- gt getProductCollection                 this- gt prepareSortableFieldsByCategory  layer- gt getCurrentCategory                 if   origCategory                    layer- gt setCurrentCategory  origCategory                                    CMI-PK added na author to filter on product listing page           this- gt  productCollection- gt addAttributeToSelect  na author             return  this- gt  productCollection       and you will be happy to see it

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This is a follow up to my original question to help out others with the same problem  If you need to filter by an attribute  rather than manually looking up the id you can use the following code to retrieve all the id  value pairs for an attribute  The data is returned as an array with the attribute name as the key    function getAttributeOptions  attributeName         product   Mage  getModel  catalog product         collection   Mage  getResourceModel  eav entity attribute collection                 - gt setEntityTypeFilter  product- gt getResource  - gt getTypeId                  - gt addFieldToFilter  attribute code    attributeName          attribute    collection- gt getFirstItem  - gt setEntity  product- gt getResource          attribute options      attribute- gt getSource  - gt getAllOptions false       foreach  attribute options as  val             attrList  val  label       val  value                  return  attrList      Here is a function you can use to get products by their attribute set id  Retrieved using the previous function    function getProductsByAttributeSetId  attributeSetId        products   Mage  getModel  catalog product  - gt getCollection        products- gt addAttributeToFilter  attribute set id   attributeSetId        products- gt addAttributeToSelect            products- gt load       foreach  products as  val          productsArray      val- gt getData           return  productsArray

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create attribute name is  price screen tab name   and access using this simple formula    lt  php   product    this- gt getProduct      gt   lt  php echo   product- gt getData  price screen tab name     gt

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Almost all Magento Models have a corresponding Collection object that can be used to fetch multiple instances of a Model   To instantiate a Product collection  do the following   collection   Mage  getModel  catalog product  - gt getCollection      Products are a Magento EAV style Model  so you ll need to add on any additional attributes that you want to return    collection   Mage  getModel  catalog product  - gt getCollection       fetch name and orig price into data  collection- gt addAttributeToSelect  name       collection- gt addAttributeToSelect  orig price          There s multiple syntaxes for setting filters on collections   I always use the verbose one below  but you might want to inspect the Magento source for additional ways the filtering methods can be used   The following shows how to filter by a range of values  greater than AND less than    collection   Mage  getModel  catalog product  - gt getCollection     collection- gt addAttributeToSelect  name       collection- gt addAttributeToSelect  orig price           filter for products whose orig price is greater than  gt  100  collection- gt addFieldToFilter array      array  attribute   gt  orig price   gt   gt  100            AND filter for products whose orig price is less than  lt  130  collection- gt addFieldToFilter array      array  attribute   gt  orig price   lt   gt  130          While this will filter by a name that equals one thing OR another      collection   Mage  getModel  catalog product  - gt getCollection     collection- gt addAttributeToSelect  name       collection- gt addAttributeToSelect  orig price           filter for products who name is equal  eq  to Widget A  or equal  eq  to Widget B  collection- gt addFieldToFilter array      array  attribute   gt  name   eq   gt  Widget A        array  attribute   gt  name   eq   gt  Widget B                  A full list of the supported short conditionals  eq lt  etc   can be found in the  getConditionSql method in lib Varien Data Collection Db php  Finally  all Magento collections may be iterated over  the base collection class implements on of the the iterator interfaces    This is how you ll grab your products once filters are set    collection   Mage  getModel  catalog product  - gt getCollection     collection- gt addAttributeToSelect  name       collection- gt addAttributeToSelect  orig price           filter for products who name is equal  eq  to Widget A  or equal  eq  to Widget B  collection- gt addFieldToFilter array      array  attribute   gt  name   eq   gt  Widget A        array  attribute   gt  name   eq   gt  Widget B                 foreach   collection as  product          var dump  product       var dump  product- gt getData

[php] Magento - Retrieve products with a specific attribute value

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