从postgresql函数参数中检索php数组键和值以进行数据库更新

发布时间：2020-12-13 15:52:54 所属栏目：百科来源：网络整理

导读：我试图将一组键值对发送到 postgresql函数作为参数.阵列的结构如下 – array(10) { ["OWNER"]= string(3) "ERP" ["SOURCE"]= string(7) "Unknown" ["PRIORITY"]= string(6) "Medium" ["PREFLOC"]= string(5) "Dhaka" ["PROBABLE"]= string(2) "50" ["MAXSIZE

我试图将一组键值对发送到 postgresql函数作为参数.阵列的结构如下 –

array(10) { 
  ["OWNER"]=> string(3) "ERP" 
  ["SOURCE"]=> string(7) "Unknown" 
  ["PRIORITY"]=> string(6) "Medium" 
  ["PREFLOC"]=> string(5) "Dhaka" 
  ["PROBABLE"]=> string(2) "50" 
  ["MAXSIZE"]=> string(4) "1000" 
  ["MINSIZE"]=> string(4) "2000" 
  ["INTAREA"]=> string(14) "Dhaka,Gulshan" 
  ["CVALPRF"]=> string(5) "Great" 
  ["OPPAMOUNT"]=> string(3) "200" 
}

函数接受这样的字符串数组参数

CREATE OR REPLACE FUNCTION 
document.update_doc_attrib_on_opportunity(p_org_id numeric,p_target_doc_code character varying,p_target_doc_no numeric,p_doc_attribs character varying[])

现在我想把数组发送到我的函数中的p_doc_attribs.对于特定的键名,我需要在表中插入所需的值.
以下查询需要相应更新 –

'UPDATE use_doc_attribute
        SET attrib_value = CASE WHEN attrib_code = ''PREFLOC''  THEN ''' || p_preferred_location || '''
                    WHEN attrib_code = ''PRIORITY'' THEN ''' || p_priority || '''
                    WHEN attrib_code = ''PROBABLE'' THEN ''' || p_probability || '''
                    WHEN attrib_code = ''SOURCE''   THEN ''' || p_source || '''
                    WHEN attrib_code = ''MAXSIZE''  THEN ''' || p_max_size || '''
                    WHEN attrib_code = ''MINSIZE''  THEN ''' || p_min_size || '''
                    WHEN attrib_code = ''INTAREA''  THEN ''' || p_interested_areas || '''
                    WHEN attrib_code = ''CVALPRF''  THEN ''' || p_client_value_profile || '''
                    ELSE attrib_value
                   END
        WHERE org_id = ' || p_org_id || '
        AND document_no = ' || p_target_doc_no || '
        AND document_code = ''' || p_target_doc_code || '''';

attrib_code将包含密钥,特定情况的attrib_value将是从p_doc_attribs数组中检索的值.

解决方法

我不是这方面的专家,但您可以对数组进行json_encode并将其传递给您的函数,因为您必须对您的函数进行以下更改：

CREATE OR REPLACE FUNCTION document.update_doc_attrib_on_opportunity(
    p_org_id numeric,p_doc_attribs JSON)

你的查询可能是这样的：

'UPDATE use_doc_attribute
    SET attrib_value = CASE WHEN attrib_code = ''PREFLOC''  THEN ''' || p_doc_attribs['PREFLOC'] || '''
                WHEN attrib_code = ''PRIORITY'' THEN ''' || p_doc_attribs['PRIORITY'] || '''
                WHEN attrib_code = ''PROBABLE'' THEN ''' || p_doc_attribs['PROBABLE'] || '''
                WHEN attrib_code = ''SOURCE''   THEN ''' || p_doc_attribs['SOURCE'] || '''
                WHEN attrib_code = ''MAXSIZE''  THEN ''' || p_doc_attribs['MAXSIZE'] || '''
                WHEN attrib_code = ''MINSIZE''  THEN ''' || p_doc_attribs['MINSIZE'] || '''
                WHEN attrib_code = ''INTAREA''  THEN ''' || p_doc_attribs['INTAREA']|| '''
                WHEN attrib_code = ''CVALPRF''  THEN ''' || p_doc_attribs['CVALPRF'] || '''
                ELSE attrib_value
               END
    WHERE org_id = ' || p_org_id || '
    AND document_no = ' || p_target_doc_no || '
    AND document_code = ''' || p_target_doc_code || '''';

您可以查看以下link以获取更多此类示例.

编辑

我认为为此工作你需要安装PLV8扩展,你可以找到更多信息here

编辑V 9.1.x.

您可以创建并传递索引数组,例如,create array类似于以下内容：

[
    "ERP","Unknown","Medium","Dhaka","50","1000","2000","Dhaka,Gulshan","Great","200"
]

然后使用PHP array to postgres array函数转换并将该数组传递给postgresql函数,并将查询中使用的数组值更改为基于索引而不是基于键,如下所示：

p_doc_attribs [3]

代替

p_doc_attribs [ ‘PREFLOC’]

（编辑：李大同）

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